Patent Description:
The present disclosure generally relates to technical fields of microphones.

Microphones are widely used in daily communication devices. In order to achieve good communication quality in different environments, microphones with high signal-to-noise ratios (SNR) and excellent anti-noise performances have become more and more popular. A microphone with excellent performances usually has a smooth frequency response curve and a high SNR. Existing methods for making the smooth frequency response curve smooth often use a flat region before a formant in a displacement resonance curve of a vibration device of a microphone. A resonance frequency of the vibration device may have to be set as a great value, which results in reducing the SNR or the sensitivity and poor communication quality of the microphone. Existing methods for improving the SNR or sensitivity of the microphone often set resonance frequencies to a voice frequency band. Because the vibration device of the microphone has a great Q value (or small damping), picking up a lot of sound signals near the formant frequency (a high peak of the frequency response curve) results in uneven distributions of frequency signal in the whole frequency band, low intelligibility, and even distortion of the sound signals. Thus, it is desirable to provide microphones with high performances, such as high sensitivities, smooth frequency response curves, and wide frequency bands. Document <CIT> shows a bending wave transducer comprising all the features of the preamble of claim <NUM>.

An aspect of the present disclosure introduces a microphone, according to claim <NUM>.

In some embodiments, the at least one damping film covers at least part of at least one surface of the transducer.

In some embodiments, the at least one surface of the transducer includes at least one of an upper surface, a lower surface of the transducer, a lateral surface, or an internal surface.

In some embodiments, the at least one damping film is disposed on at least one position including an upper surface of the transducer, a lower surface of the transducer, a lateral surface of the transducer, or an interior of the transducer.

In some embodiments, the at least one damping film is disposed on at least one surface of the transducer at a predetermined angle.

In some embodiments, the at least one damping film is not connected to the housing.

In some embodiments, the at least one damping film is connected to the housing.

In some embodiments, the at least one damping film includes at least two damping films, and the at least two damping films are arranged symmetrically with respect to a center line of the transducer.

In some embodiments, the converting component further includes at least one elastic element, wherein the at least one damping film is connected to the transducer and the at least one elastic element respectively.

In some embodiments, the at least one elastic element and the transducer are arranged in a predetermined distribution mode.

In some embodiments, the predetermined distribution mode includes at least one of a horizontal distribution mode, a vertical distribution mode, an array distribution mode, or a random distribution mode.

In some embodiments, the at least one damping film covers at least part of at least one surface of the at least one elastic element.

In some embodiments, a width of the at least one damping film is variable.

In some embodiments, a thickness of the at least one damping film is variable.

In some embodiments, the transducer includes at least one of a diaphragm, a piezo ceramic plate, a piezo film, or an electrostatic film.

In some embodiments, a structure of the transducer includes at least one of a film, a cantilever, or a plate.

In some embodiments, the vibration signals are caused by at least one of: gas, liquid, or solid.

In some embodiments, the vibration signals are transmitted from the housing to the converting component according to a non-contact mode or a contact mode.

In some embodiments, the transducer and the at least one damping film are designed according to a frequency response curve of the microphone.

According to another aspect of the present disclosure, an electronic device comprising a microphone is provided, according to claim <NUM>.

The following description is presented to enable any person skilled in the art to make and use the present disclosure and is provided in the context of a particular application and its requirements. The present disclosure is not limited to the embodiments shown but is to be accorded the widest scope consistent with the claims.

It will be further understood that the terms "comprises," "comprising," "includes," and/or "including" when used in this disclosure, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

These and other features, and characteristics of the present disclosure, as well as the methods of operations and functions of the related elements of structure and the combination of parts and economies of manufacture, may become more apparent upon consideration of the following description with reference to the accompanying drawings. It is to be expressly understood, however, that the drawing(s) is for the purpose of illustration and description only and are not intended to limit the scope of the present disclosure.

The flowcharts used in the present disclosure illustrate operations that systems implement according to some embodiments of the present disclosure.

An aspect of the present disclosure relates to microphones and electronic devices having the same. To this end, a microphone may use damping materials in form of a film to cover at least part of at least one surface of a transducer to form a converting component for converting vibration signals into electrical signals. For example, the transducer may be a cantilever, and the microphone may include at least one damping film completely covering the at least one surface of the cantilever. As another example, the at least one damping film may be disposed on the at least one surface of the transducer at a predetermined angle. The matter for which protection is sought is uniquely defined by claim <NUM>. In this way, the microphone may have good performance in communication quality, such as high sensitivities, smooth frequency response curves, and wide frequency bands. In addition, the microphone may have high reliability and be easy to achieve in manufacture.

<FIG> is a block diagram illustrating an exemplary microphone <NUM>. For example, microphone <NUM> may be a microphone of an electronic device, such as a telephone, an earphone, a headphone, a wearable device, a smart mobile device, a virtual reality device, an augmented reality device, a computer, a laptop, etc. The microphone <NUM> may include a housing <NUM>, a converting component <NUM> inside the housing <NUM>, and a processing circuit <NUM>.

The housing <NUM> may be configured to receive vibration signals. The housing <NUM> may receive the vibration signals from a vibration source that generates the vibration signals in a contact mode. The housing <NUM> may receive the vibration signals from the vibration source in a non-contact mode. For example, the housing <NUM> may receive the vibration signals via a medium, such as air, solid, liquid, etc. The vibration source may include any device or individual generating vibrations to be detected. For example, the vibration source may include a human body, a musical instrument, a machine, or the like, or any combination thereof. The vibration signals may include air vibration signals, solid vibration signals, liquid vibration signals, or the like, or any combination thereof.

The housing <NUM> may transmit the vibration signals to the converting component <NUM> in a contact mode or a non-contact mode. For example, the converting component <NUM> may be inside the housing <NUM> and touch the housing <NUM>. The converting component <NUM> may receive the vibration signals from the housing <NUM> directly. As another example, the converting component <NUM> may not touch the housing <NUM>. The converting component <NUM> may receive the vibration signals from the housing <NUM> via a medium, such as air, solid, liquid, etc..

The converting component <NUM> may be configured to converting the vibration signals into electrical signals. The converting component <NUM> may receive the vibration signals and generate the electrical signals by deforming a structure of the converting component <NUM>. The converting component <NUM> may include at least one transducer <NUM>, at least one damping film <NUM>, and at least one elastic element <NUM>. For example, the converting component <NUM> may only include a transducer <NUM>. As another example, the converting component <NUM> may include a transducer <NUM> and a damping film <NUM> attached to the transducer <NUM>. As another example, the converting component <NUM> may include a transducer <NUM>, an elastic element <NUM>, and a damping film <NUM> connected to the transducer <NUM> and the elastic element <NUM>. As still another example, the converting component <NUM> may include at least two transducers <NUM>, at least two elastic elements <NUM>, and at least two damping films <NUM>.

The at least one transducer <NUM> may be configured to converting the vibration signals into the electrical signals. For example, the vibration signals may be transmitted from the housing <NUM> and cause the at least one transducer <NUM> deformed to output the electrical signals. A signal conversion type of the at least one transducer <NUM> may include an electromagnetic type (e.g., a moving-coil type, a moving-iron type, etc.), a piezoelectric type, an inversed piezoelectric type, an electrostatic type, an electret type, a planar magnetic type, a balanced armature type, a thermoacoustic type, or the like, or any combination thereof. The at least one transducer <NUM> may include a diaphragm, a piezo ceramic plate, a piezo film, an electrostatic film, or the like, or any combination thereof. A shape of the at least one transducer <NUM> may be variable. For example, the shape of the at least one transducer <NUM> may include a circle, a rectangle, a square, an oval, or the like, or any combination thereof. A structure of the at least one transducer <NUM> may be variable. For example, the structure of the at least one transducer <NUM> may include a film, a cantilever, a plate, or the like, or any combination thereof.

Only one of the at least one transducer <NUM> may be configured to output electrical signals, and remaining of the at least one transducer <NUM> may be configured to act as elastic elements to deform in response to the vibration signals. Each of the remaining of the at least one transducer <NUM> may contribute a resonance peak for the frequency response curve of the microphone <NUM>.

The at least one damping film <NUM> may be configured to change a composite damping and/or a composite weight of the converting component <NUM> to adjust a frequency response curve of the converting component <NUM>. For example, the at least one damping film <NUM> may adjust the composite damping of the converting component <NUM> to make the converting component <NUM> have a predetermined Q value and a flat frequency response curve. As another example, the at least one damping film <NUM> may adjust the composite weight of the converting component <NUM> and resonant frequency of the frequency response curve of the converting component <NUM>. It should be noted that the at least one damping film <NUM> is merely provided for the purposes of illustration, and not intended to limit the scope of the present disclosure. The damping in the microphone <NUM> may be in any other structure. For example, the structure of the damping in the microphone <NUM> may include a film, a block, a complex structure, or the like, or any combination thereof. The at least one damping film <NUM> may be configured to transmit vibrations of the at least one elastic element <NUM> to the at least one transducer <NUM>. A plurality of equivalent resonance peaks may be generated.

The at least one elastic element <NUM> may be configured to change vibration performances of the converting component <NUM>. In some embodiments, a material of the at least one damping film <NUM> may include metal, inorganic nonmetal, polymer materials, composite materials, or the like, or any combination thereof. The at least one damping film <NUM> may be connected to the at least one transducer <NUM> and the at least one elastic element <NUM>, respectively. For example, the at least one damping film <NUM> may transmit vibration signals generated by the at least one elastic element <NUM> to the at least one transducer <NUM>.

The processing circuit <NUM> may be configured to process the electrical signals.

<FIG> is a schematic diagram illustrating an exemplary spring-mass-damper system of a converting component <NUM>. In a microphone, a converting component thereof may be simplified and equivalent to a spring-mass-damper system as shown in <FIG>. When the microphone works, the spring-mass-damper system may be forced to vibrate under an excitation force.

As shown in <FIG>, the spring-mass-damper system may be moved according to a differential equation (<NUM>): <MAT> wherein M denotes a mass of the spring-mass-damper system, x denotes a displacement of the spring-mass-damper system, R denotes a damping of the spring-mass-damper system, K denotes an elastic coefficient of the spring-mass-damper system, F denotes an amplitude of a driving force, and ω denotes a circular frequency of an external force.

The differential equation (<NUM>) may be solved to obtain displacements under steady-state (<NUM>): <MAT> wherein x denotes a deformation of the spring-mass-damper system when the microphone works, which equals to a value of an output electrical signal, <MAT> <MAT>, xa denotes an output displacement, Z denotes a mechanical impedance, and θ denotes an oscillation phase.

Normalization of a ratio A of displacement amplitudes may be described as equation (<NUM>): <MAT> wherein <MAT>, xa<NUM> denotes a displacement amplitude under steady-state (or a displacement amplitude when ω=<NUM>), <MAT> denotes a ratio of a frequency of a an external force to a natural frequency, ω<NUM> = K/M, ω<NUM> denotes a circular frequency of a vibration, <MAT>, and Qm denotes a mechanical quality factor.

<FIG> is a schematic diagram illustrating exemplary normalization of displacement resonance curves of spring-mass-damper systems.

The microphone <NUM> generates voltage signals by relative displacement between the converting component <NUM> and the housing <NUM>. For example, an electret microphone generates voltage signals according to a distance change between a deformed diaphragm transducer and a substrate. As another example, a cantilever bone conduction microphone may generate electrical signals according to an inverse piezoelectric effect caused by a deformed cantilever transducer. The greater of a displacement that the transducer deforms, the greater the electrical signal that the microphone outputs. As shown in <FIG>, the smaller of a damping (e.g., a material damping, a structural damping, etc.) of the converting component, the greater of the Q value, and the narrower of a 3dB bandwidth at a resonance peak of the displacement resonance curve. The resonance peak may not be set in a voice frequency range in a microphone with excellent performances.

<FIG> is a schematic diagram illustrating an exemplary frequency response curve of an original converting component <NUM> and an exemplary frequency response curve after moving a resonance peak forward of the original converting component <NUM>. As shown in <FIG>, in order to improve a whole sensitivity of the microphone, the natural frequency of the converting component <NUM> may be brought forward by moving the resonance peak forward to the voice frequency range to improve the sensitivity of the microphone before the resonance peak. The output displacement xa may be determined according to equation (<NUM>): <MAT> according to equation (<NUM>), if ω < ω<NUM>, ωM < Kω-<NUM>. If decreasing ω<NUM> of the converting component <NUM> by increasing M and/or decreasing K, |ωM < Kω-<NUM>| may decrease, and the corresponding output displacement xa may increase. If ω = ω<NUM>, ωM = Kω-<NUM>. The output displacement xa may be constant if decreasing or increasing ω<NUM> of the converting component <NUM>. If ω > ω<NUM>, ωM > Kω-<NUM>. If decreasing ω<NUM> of the converting component <NUM> by increasing M and/or decreasing K, |ωM < Kω-<NUM>| may increase, and the corresponding output displacement xa may decrease.

As the resonance peak moving forward, the resonance peak may appear in the voice frequency range. If picking up a plurality of signals near the resonance peak, the communication quality may be bad. Adding damping to the converting component <NUM> may increase energy loss, especially energy loss near the resonance peak, during vibration. A reciprocal of Q value may be described according to equation (<NUM>): <MAT> wherein Q-<NUM> denotes the reciprocal of Q value, Δf denotes a 3dB bandwidth (a difference value of two frequencies f<NUM>,f<NUM> at half of the resonance amplitude, respectively, Δf = f<NUM> - f<NUM>), and f<NUM> denotes a resonance frequency.

As the damping of the converting component <NUM> increases, Q value decreases, and the corresponding 3dB bandwidth increases. The damping may be not constant during a deforming process and may be great under great force or great amplitude. Amplitudes in a non-resonance area may be small and amplitudes in a resonance area may be great. <FIG> is a schematic diagram illustrating an exemplary frequency response curve after moving a resonance peak forward of a converting component <NUM> and an exemplary frequency response curve after adding damping material in the converting component <NUM> As shown in <FIG>, the sensitivity of the microphone in the non-resonance area may not decrease, and Q value in the resonance area may decrease by adding a suitable damping in the converting component <NUM>. The frequency response curve may be flat.

The microphone <NUM> may be designed according to different application scenes. For example, if the microphone <NUM> is applied to an application scene that requires to have a small volume and low sensitivity, the microphone <NUM> may be designed to include a transducer <NUM> and a damping film <NUM> of the converting component <NUM> in the housing <NUM>.

<FIG> is a schematic diagram illustrating an exemplary equivalent model of a converting component <NUM> including a transducer <NUM> and a damping film <NUM> As shown in <FIG>, R denotes a damping of the transducer <NUM>, K denotes an elastic coefficient of the transducer <NUM>, and R1 denotes an additional damping of the damping film <NUM>. In some embodiments, the composite damping of the converting component <NUM> may increase by adding the damping film <NUM>. The damping of the converting component <NUM> may be changed.

<FIG> is a schematic diagram illustrating an exemplary frequency response curve of an original converting component <NUM>, an exemplary frequency response curve after moving a resonance peak forward of the original converting component <NUM>, and an exemplary frequency response curve after adding damping material in the converting component <NUM>. As shown in <FIG>, the Q value at the resonance peak may decrease and the sensitivities of frequencies other than the resonance peak may not decrease and even increase. The sensitivity of the microphone <NUM> may increase and the frequency response curve may be flat by moving the resonance peak forward to the voice frequency range, which improves the performances of the microphone <NUM>.

The microphone <NUM> may be designed to include a transducer <NUM>, a damping film <NUM>, and an elastic element <NUM> of the converting component <NUM> in the housing <NUM>. The elastic element <NUM> and the transducer <NUM> may each have a resonance peak. The damping film <NUM> may be connected to the elastic element <NUM> and the transducer <NUM>, respectively, to transmit vibrations of the elastic element <NUM> to the transducer <NUM>. The microphone <NUM> including the transducer <NUM>, the damping film <NUM>, and the elastic element <NUM> may output a frequency response curve with two resonance peaks.

<FIG> is a schematic diagram illustrating an exemplary frequency response curve of a transducer <NUM>, an exemplary frequency response curve of an elastic element <NUM>, and an exemplary frequency response curve of a converting component <NUM> including the transducer <NUM> and the elastic element <NUM>. The elastic element <NUM> may be designed according to different application scenes. For example, the elastic element <NUM> may be designed as a suitable structure. A first-order resonance frequency of the elastic element <NUM> may be within a predetermined voice frequency range. The elastic element <NUM> may contribute a resonance peak for the microphone <NUM> using the first-order resonance frequency of the elastic element <NUM>. The elastic element <NUM> with a suitable structure may contribute a plurality of resonance peaks within the predetermined voice frequency range. The damping of the damping film <NUM> may be designed to achieve a microphone <NUM> with a high sensitivity, a great Q value, and two resonance peaks in the frequency response curve of the microphone <NUM> as shown in <FIG>.

The microphone <NUM> may be designed to include a transducer <NUM>, a plurality of damping films <NUM>, and a plurality of elastic elements <NUM> of the converting component <NUM> in the housing <NUM>. Each damping film <NUM> may be connected to an elastic element <NUM> and the transducer <NUM>, respectively, to transmit vibrations of the corresponding elastic element <NUM> to the transducer <NUM>. The microphone <NUM> including the transducer <NUM>, the plurality of damping films <NUM>, and the plurality of elastic elements <NUM> may output a frequency response curve with a plurality of resonance peaks. The damping of each of the plurality of damping films <NUM> may be designed to adjust a Q vale of each resonance peak of the frequency response curve.

<FIG> is a schematic diagram illustrating an exemplary frequency response curve of a transducer <NUM>, an exemplary frequency response curve of a converting component <NUM> including a transducer <NUM> and an elastic element <NUM>, an exemplary frequency response curve of a converting component <NUM> including a transducer <NUM> and two elastic elements <NUM>, and an exemplary frequency response curve of a converting component <NUM> including a transducer <NUM> and three elastic elements <NUM>. As shown in <FIG>, each resonance frequency of each elastic element <NUM> may be different from each other and be within the predetermined voice frequency range. The sensitivities within the whole predetermined voice frequency range may be high and the frequency response curve of the microphone <NUM> may be flat.

The interior structures of the microphone <NUM> and the layouts of each part inside the microphone <NUM> may be designed according to different application scenes. For example, the microphone <NUM> may be designed according to a position where the microphone <NUM> put (e.g., in front of ears of a human, behind ears of a human, on a neck of a human, etc.). As another example, the microphone <NUM> may be designed according to a conduction mode (e.g., a bone conduction mode, an air conduction mode, etc.) of the microphone <NUM>. As still another example, the microphone <NUM> may be designed according to frequencies of different signals (e.g., voice signals of humans, sound signals of a machine, etc.) that the microphone <NUM> acquires. As still another example, the microphone <NUM> may be designed according to production processes of the microphone <NUM>. A size, a shape, an installation position, a layout, a structure, a count of the at least one transducer <NUM>, the at least one damping film <NUM>, and/or the at least one elastic element <NUM> may be determined according to different application scenes. For example, the transducer <NUM> and the at least one damping film <NUM> of the microphone <NUM> may be designed according to a frequency response curve of the microphone <NUM>.

The at least one damping film <NUM> may be disposed on any position of the at least one transducer <NUM>. For example, the at least one damping film <NUM> may be disposed on an upper surface of the at least one transducer <NUM>, a lower surface of the at least one transducer <NUM>, a lateral surface of the at least one transducer <NUM>, an interior of the at least one transducer <NUM>, or the like, or any combination thereof. The at least one damping film <NUM> may cover at least part of at least one surface of the at least one transducer <NUM>. For example, a damping film <NUM> of the at least one damping film <NUM> may cover all surface of a transducer <NUM> of the at least one transducer <NUM>. As another example, a damping film <NUM> of the at least one damping film <NUM> may cover a part of a surface of a transducer <NUM> of the at least one transducer <NUM>. The at least one surface of a transducer <NUM> may include an upper surface of the transducer <NUM>, a lower surface of the transducer <NUM>, a lateral surface of the transducer <NUM>, an internal surface of the transducer <NUM>, or the like, or any combination thereof.

The at least one damping film <NUM> may connect to the at least one transducer <NUM> and may not connect to the housing <NUM>. The connection between any two parts inside the microphone <NUM> may include bonding, riveting, thread connection, integral forming, suction connection, or the like, or any combination thereof.

<FIG> is a structural schematic diagram illustrating an exemplary microphone <NUM>. As shown in <FIG>, the microphone <NUM> may include a housing <NUM>, a transducer <NUM> connecting to the housing <NUM>, and a damping film <NUM> connected to the transducer <NUM> and disconnected to the housing <NUM>. The transducer <NUM> may fix to the housing <NUM> at two ends of the transducer <NUM>. The damping film <NUM> may cover part of an upper surface of the transducer <NUM>.

<FIG> is a structural schematic diagram illustrating an exemplary microphone <NUM>. As shown in <FIG>, the microphone <NUM> may include a housing <NUM>, a transducer <NUM> connecting to the housing <NUM>, and a damping film <NUM> connected to the transducer <NUM> and disconnected to the housing <NUM>. The transducer <NUM> may fix to the housing <NUM> at two ends of the transducer <NUM>. The damping film <NUM> may cover part of a lower surface of the transducer <NUM>.

<FIG> is a structural schematic diagram illustrating an exemplary microphone <NUM>. As shown in <FIG>, the microphone <NUM> may include a housing <NUM>, two transducers <NUM> connecting to the housing <NUM>, respectively, and a damping film <NUM> connected to the transducers <NUM> and disconnected to the housing <NUM>. Each of the two transducers <NUM> may fix to the housing <NUM> at two ends of the transducer <NUM>. The damping film <NUM> may cover part of an upper surface of one of the two transducers <NUM> and part of a lower surface of the other of the two transducers <NUM>. As shown in <FIG>, the two transducers <NUM> and the damping film <NUM> may form a sandwich. The damping film <NUM> may sandwich between the two transducers <NUM>.

<FIG> is a structural schematic diagram illustrating an exemplary microphone <NUM>. As shown in <FIG>, the microphone <NUM> may include a housing <NUM>, a transducer <NUM> connecting to the housing <NUM>, and two damping films <NUM> connected to the transducer <NUM>, respectively, and disconnected to the housing <NUM>. The transducer <NUM> may fix to the housing <NUM> at two ends of the transducer <NUM>. The two damping films <NUM> may cover part of an upper surface and a lower surface of the transducer <NUM>, respectively.

<FIG> is a structural schematic diagram illustrating an exemplary microphone <NUM>. As shown in <FIG>, the microphone <NUM> may include a housing <NUM>, a cantilever transducer <NUM> connecting to the housing <NUM>, and a damping film <NUM> connected to the transducer <NUM> and disconnected to the housing <NUM>. The cantilever transducer <NUM> may fix to the housing <NUM> at an end of the cantilever transducer <NUM>. The damping film <NUM> may cover part of a lower surface of the cantilever transducer <NUM>.

<FIG> is a structural schematic diagram illustrating an exemplary microphone <NUM>. As shown in <FIG>, the microphone <NUM> may include a housing <NUM>, a cantilever transducer <NUM> connecting to the housing <NUM>, and a damping film <NUM> connected to the transducer <NUM> and disconnected to the housing <NUM>. The cantilever transducer <NUM> may fix to the housing <NUM> at an end of the cantilever transducer <NUM>. The damping film <NUM> may cover part of an upper surface of the cantilever transducer <NUM>.

<FIG> is a structural schematic diagram illustrating an exemplary microphone <NUM>. As shown in <FIG>, the microphone <NUM> may include a housing <NUM>, two cantilever transducers <NUM> connecting to the housing <NUM>, respectively, and a damping film <NUM> connected to the cantilever transducers <NUM> and disconnected to the housing <NUM>. Each of the two cantilever transducers <NUM> may fix to the housing <NUM> at an end of each cantilever transducer <NUM>. The damping film <NUM> may cover part of an upper surface of one of the two cantilever transducers <NUM> and part of a lower surface of the other of the two cantilever transducers <NUM>. As shown in <FIG>, the two cantilever transducers <NUM> and the damping film <NUM> may form a sandwich. The damping film <NUM> may sandwich between the two cantilever transducers <NUM>.

<FIG> is a structural schematic diagram illustrating an exemplary microphone <NUM>. As shown in <FIG>, the microphone <NUM> may include a housing <NUM>, a cantilever transducer <NUM> connecting to the housing <NUM>, and two damping films <NUM> connected to the cantilever transducer <NUM>, respectively, and disconnected to the housing <NUM>. The cantilever transducer <NUM> may fix to the housing <NUM> at an end of the cantilever transducer <NUM>. The two damping films <NUM> may cover part of an upper surface and a lower surface of the cantilever transducer <NUM>, respectively.

<FIG> is a schematic diagram illustrating exemplary frequency response curves of a microphone <NUM> when damping films <NUM> are disconnected to at least one transducer <NUM> thereof. The frequency response curves of a microphone <NUM> without damping films <NUM>, a microphone <NUM> including four layers of damping films <NUM>, and a microphone <NUM> including ten layers of damping films <NUM> may be different. As shown in <FIG>, the resonance peak moves forward, sensitivities before the resonance peak improves, and Q value at the resonance peak decreases as a count of layers of damping films <NUM> increases. The more the damping films <NUM>, the less of the frequency at the resonance peak, the higher sensitivities before the resonance peak, and the smaller of the Q value at the resonance peak. Therefore, in order to achieve actual demands (e.g., the sensitivity, the Q value at the resonance peak, the frequency at the resonance peak, etc.) of the microphone <NUM>, the microphone <NUM> may be designed to include a damping film <NUM> or a plurality of damping films <NUM>.

The at least one damping film <NUM> may connect to both the at least one transducer <NUM> and the housing <NUM>. The connection between any two parts inside the microphone <NUM> may include bonding, riveting, thread connection, integral forming, suction connection, or the like, or any combination thereof.

<FIG> is a structural schematic diagram illustrating an exemplary microphone <NUM>. As shown in <FIG>, the microphone <NUM> may include a housing <NUM>, two transducers <NUM> connecting to the housing <NUM>, respectively, and a damping film <NUM> connected to both the transducers <NUM> and the housing <NUM>. Each of the two transducers <NUM> may fix to the housing <NUM> at two ends of each transducer <NUM>. The damping film <NUM> may connect to the housing <NUM> at two ends of the damping film <NUM>. The damping film <NUM> may cover all of an upper surface of one of the two transducers <NUM> and all of a lower surface of the other of the two transducers <NUM>. As shown in <FIG>, the two transducers <NUM> and the damping film <NUM> may form a sandwich. The damping film <NUM> may sandwich between the two transducers <NUM>.

<FIG> is a structural schematic diagram illustrating an exemplary microphone <NUM>. As shown in <FIG>, the microphone <NUM> may include a housing <NUM>, a transducer <NUM> connecting to the housing <NUM>, and a damping film <NUM> connected to both the transducer <NUM> and the housing <NUM>. The transducer <NUM> may fix to the housing <NUM> at two ends of the transducer <NUM>. The damping film <NUM> may cover all of a lower surface of the transducer <NUM>. The damping film <NUM> may connect to the housing <NUM> at two ends of the damping film <NUM>.

<FIG> is a structural schematic diagram illustrating an exemplary microphone <NUM>. As shown in <FIG>, the microphone <NUM> may include a housing <NUM>, a transducer <NUM> connecting to the housing <NUM>, and a damping film <NUM> connected to both the transducer <NUM> and the housing <NUM>. The transducer <NUM> may fix to the housing <NUM> at two ends of the transducer <NUM>. The damping film <NUM> may cover all of an upper surface of the transducer <NUM>. The damping film <NUM> may connect to the housing <NUM> at two ends of the damping film <NUM>.

<FIG> is a structural schematic diagram illustrating an exemplary microphone <NUM>. As shown in <FIG>, the microphone <NUM> may include a housing <NUM>, a cantilever transducer <NUM> connecting to the housing <NUM>, and a damping film <NUM> connected to both the transducer <NUM> and the housing <NUM>. The cantilever transducer <NUM> may fix to the housing <NUM> at an end of the cantilever transducer <NUM>. The damping film <NUM> may cover all of a lower surface of the cantilever transducer <NUM>. The damping film <NUM> may connect to the housing <NUM> at an end of the damping film <NUM>.

<FIG> is a structural schematic diagram illustrating an exemplary microphone <NUM>. As shown in <FIG>, the microphone <NUM> may include a housing <NUM>, a cantilever transducer <NUM> connecting to the housing <NUM>, and a damping film <NUM> connected to both the transducer <NUM> and the housing <NUM>. The cantilever transducer <NUM> may fix to the housing <NUM> at an end of the cantilever transducer <NUM>. The damping film <NUM> may cover all of an upper surface of the cantilever transducer <NUM>. The damping film <NUM> may connect to the housing <NUM> at an end of the damping film <NUM>.

<FIG> is a structural schematic diagram illustrating an exemplary microphone <NUM>. As shown in <FIG>, the microphone <NUM> may include a housing <NUM>, two cantilever transducers <NUM> connecting to the housing <NUM>, respectively, and a damping film <NUM> connected to both the cantilever transducers <NUM> and the housing <NUM>. Each of the two cantilever transducers <NUM> may fix to the housing <NUM> at an end of each cantilever transducer <NUM>. The damping film <NUM> may cover all of an upper surface of one of the two cantilever transducers <NUM> and all of a lower surface of the other of the two cantilever transducers <NUM>. As shown in <FIG>, the two cantilever transducers <NUM> and the damping film <NUM> may form a sandwich. The damping film <NUM> may sandwich between the two cantilever transducers <NUM>. The damping film <NUM> may connect to the housing <NUM> at an end of the damping film <NUM>.

<FIG> is a schematic diagram illustrating exemplary frequency response curves of a microphone <NUM> when damping films <NUM> are connected to at least one transducer <NUM> thereof. The frequency response curves of a microphone <NUM> without damping films <NUM>, a microphone <NUM> including four layers of damping films <NUM>, and a microphone <NUM> including ten layers of damping films <NUM> may be different. As shown in <FIG>, the resonance peak is constant, sensitivities before the resonance peak improves, and Q value at the resonance peak decreases as a count of layers of damping films <NUM> increases. The more the damping films <NUM>, the higher sensitivities before the resonance peak, and the smaller of the Q value at the resonance peak.

The at least one damping film <NUM> may connect to both the at least one transducer <NUM> and the housing <NUM>. The at least one damping film <NUM> may be disposed on at least one surface of the transducer at a predetermined angle. The at least one damping film <NUM> may include at least two damping films <NUM>. The at least two damping films <NUM> may be arranged symmetrically with respect to a center line of the transducer <NUM>. The at least two damping films <NUM> may be arranged asymmetrically with respect to the center line of the transducer <NUM>. A width of each of the at least damping film <NUM> may be the same or different. For example, the width of each of the at least damping film <NUM> may be variable. A thickness of each of the at least damping film <NUM> may be the same or different. For example, the thickness of each of the at least damping film <NUM> may be variable. In some embodiments, each of the at least one damping film <NUM> may overlap with part of each of the at least one transducer <NUM>.

<FIG> is a structural schematic diagram illustrating an exemplary microphone <NUM> As shown in <FIG>, the microphone <NUM> may include a housing <NUM>, a cantilever transducer <NUM> connecting to the housing <NUM>, and a damping film <NUM> connected to both the cantilever transducer <NUM> and the housing <NUM>. The cantilever transducer <NUM> may fix to the housing <NUM> at an end of the cantilever transducer <NUM>. The damping film <NUM> may cover all of an upper surface of the cantilever transducer <NUM>. The damping film <NUM> may connect to the housing <NUM> at two ends of the damping film <NUM>.

<FIG> is a structural schematic diagram illustrating an exemplary microphone <NUM>. As shown in <FIG>, the microphone <NUM> may include a housing <NUM>, a cantilever transducer <NUM> connecting to the housing <NUM>, and a damping film <NUM> connected to both the cantilever transducer <NUM> and the housing <NUM>. The cantilever transducer <NUM> may fix to the housing <NUM> at an end of the cantilever transducer <NUM>. The damping film <NUM> may cover all of a lower surface of the cantilever transducer <NUM>. The damping film <NUM> may connect to the housing <NUM> at two ends of the damping film <NUM>.

<FIG> is a structural schematic diagram illustrating an exemplary microphone <NUM>. As shown in <FIG>, the microphone <NUM> may include a housing <NUM>, two cantilever transducers <NUM> connecting to the housing <NUM>, respectively, and a damping film <NUM> connected to both the cantilever transducers <NUM> and the housing <NUM>. Each of the two cantilever transducers <NUM> may fix to the housing <NUM> at two ends of each cantilever transducer <NUM>. The damping film <NUM> may connect to the housing <NUM> at two ends of the damping film <NUM>. The damping film <NUM> may cover all of an upper surface of one of the two cantilever transducers <NUM> and all of a lower surface of the other of the two cantilever transducers <NUM>. As shown in <FIG>, the two cantilever transducers <NUM> and the damping film <NUM> may form a sandwich. The damping film <NUM> may sandwich between the two cantilever transducers <NUM>.

<FIG> is a structural schematic diagram illustrating an exemplary microphone <NUM>. As shown in <FIG>, the microphone <NUM> may include a housing <NUM>, a cantilever transducer <NUM> connecting to the housing <NUM>, and two damping films <NUM> connected to both the cantilever transducer <NUM>, respectively, and the housing <NUM>. The cantilever transducer <NUM> may fix to the housing <NUM> at an end of the cantilever transducer <NUM>. Each of the two damping films <NUM> may connect to the housing <NUM> at two ends of each damping film <NUM>. The two damping films <NUM> may cover all of an upper surface and all of a lower surface of the cantilever transducer <NUM>, respectively. As shown in <FIG>, the two damping films <NUM> and the cantilever transducer <NUM> may form a sandwich. The cantilever transducer <NUM> may sandwich between the two damping films <NUM>.

<FIG> is a structural schematic diagram illustrating an exemplary microphone <NUM>. As shown in <FIG>, the microphone <NUM> may include a housing <NUM>, a cantilever transducer <NUM> connecting to the housing <NUM>, and two damping films <NUM> connected to both the cantilever transducer <NUM>, respectively, and the housing <NUM>. The cantilever transducer <NUM> may fix to the housing <NUM> at an end of the cantilever transducer <NUM>. Each of the two damping films <NUM> may connect to the housing <NUM> at an end of each damping film <NUM> and connect to the cantilever transducer <NUM> at the other end of each damping film. The two damping films <NUM> may cover part of an upper surface and part of a lower surface of the cantilever transducer <NUM>, respectively. As shown in <FIG>, the two damping films <NUM> may be disposed on the upper surface and the lower surface of the cantilever transducer <NUM> at <NUM>°. The overlap parts of the two damping films <NUM> and the cantilever transducer <NUM> may be close to an end other than the fixed end of the cantilever transducer <NUM>. The thickness of each of the two damping films <NUM> may be constant and same with each other.

<FIG> is a structural schematic diagram illustrating an exemplary microphone <NUM>. As shown in <FIG>, the microphone <NUM> may include a housing <NUM>, a cantilever transducer <NUM> connecting to the housing <NUM>, and two damping films <NUM> connected to both the cantilever transducer <NUM>, respectively, and the housing <NUM>. The cantilever transducer <NUM> may fix to the housing <NUM> at an end of the cantilever transducer <NUM>. Each of the two damping films <NUM> may connect to the housing <NUM> at an end of each damping film <NUM> and connect to the cantilever transducer <NUM> at the other end of each damping film. The two damping films <NUM> may cover part of an upper surface and part of a lower surface of the cantilever transducer <NUM>, respectively. As shown in <FIG>, the two damping films <NUM> may be disposed on the upper surface and the lower surface of the cantilever transducer <NUM> at <NUM>°. The overlap parts of the two damping films <NUM> and the cantilever transducer <NUM> may be close to a center line of the cantilever transducer <NUM>. The thickness of each of the two damping films <NUM> may be constant and same with each other.

<FIG> is a structural schematic diagram illustrating an exemplary microphone <NUM>. As shown in <FIG>, the microphone <NUM> may include a housing <NUM>, a cantilever transducer <NUM> connecting to the housing <NUM>, and two damping films <NUM> connected to both the cantilever transducer <NUM>, respectively, and the housing <NUM>. The cantilever transducer <NUM> may fix to the housing <NUM> at an end of the cantilever transducer <NUM>. Each of the two damping films <NUM> may connect to the housing <NUM> at an end of each damping film <NUM> and connect to the cantilever transducer <NUM> at the other end of each damping film. The two damping films <NUM> may cover part of an upper surface and part of a lower surface of the cantilever transducer <NUM>, respectively. As shown in <FIG>, the two damping films <NUM> may be disposed on the upper surface and the lower surface of the cantilever transducer <NUM> at <NUM>°. The overlap parts of the two damping films <NUM> and the cantilever transducer <NUM> may be close to an end other than the fixed end of the cantilever transducer <NUM>. The thickness of each of the two damping films <NUM> may be variable. The thickness of the damping films <NUM> connected to the cantilever transducer <NUM> may be less than the thickness of the damping films <NUM> connected to the housing <NUM>.

<FIG> is a structural schematic diagram illustrating an exemplary microphone <NUM>. As shown in <FIG>, the microphone <NUM> may include a housing <NUM>, a cantilever transducer <NUM> connecting to the housing <NUM>, and two damping films <NUM> connected to both the cantilever transducer <NUM>, respectively, and the housing <NUM>. The cantilever transducer <NUM> may fix to the housing <NUM> at an end of the cantilever transducer <NUM>. Each of the two damping films <NUM> may connect to the housing <NUM> at an end of each damping film <NUM> and connect to the cantilever transducer <NUM> at the other end of each damping film. The two damping films <NUM> may cover part of an upper surface and part of a lower surface of the cantilever transducer <NUM>, respectively. As shown in <FIG>, the two damping films <NUM> may be disposed on the upper surface and the lower surface of the cantilever transducer <NUM> at <NUM>°. The overlap parts of the two damping films <NUM> and the cantilever transducer <NUM> may be close to an end other than the fixed end of the cantilever transducer <NUM>. The thickness of each of the two damping films <NUM> may be variable. The thickness of the damping films <NUM> connected to the cantilever transducer <NUM> may be greater than the thickness of the damping films <NUM> connected to the housing <NUM>.

<FIG> is a structural schematic diagram illustrating an exemplary microphone <NUM>. As shown in <FIG>, the microphone <NUM> may include a housing <NUM>, a cantilever transducer <NUM> connecting to the housing <NUM>, and two damping films <NUM> connected to both the cantilever transducer <NUM>, respectively, and the housing <NUM>. The cantilever transducer <NUM> may fix to the housing <NUM> at an end of the cantilever transducer <NUM>. Each of the two damping films <NUM> may connect to the housing <NUM> at an end of each damping film <NUM> and connect to the cantilever transducer <NUM> at the other end of each damping film. The two damping films <NUM> may cover part of an upper surface and part of a lower surface of the cantilever transducer <NUM>, respectively. As shown in <FIG>, the two damping films <NUM> may be disposed on the upper surface and the lower surface of the cantilever transducer <NUM> at an angle between <NUM>° and <NUM>°. The overlap parts of the two damping films <NUM> and the cantilever transducer <NUM> may be close to an end other than the fixed end of the cantilever transducer <NUM>. The thickness of each of the two damping films <NUM> may be constant and same with each other.

<FIG> is a structural schematic diagram illustrating an exemplary microphone <NUM>. As shown in <FIG>, the microphone <NUM> may include a housing <NUM>, a cantilever transducer <NUM> connecting to the housing <NUM>, and two damping films <NUM> connected to both the cantilever transducer <NUM>, respectively, and the housing <NUM>. The cantilever transducer <NUM> may fix to the housing <NUM> at an end of the cantilever transducer <NUM>. Each of the two damping films <NUM> may connect to the housing <NUM> at an end of each damping film <NUM> and connect to the cantilever transducer <NUM> at the other end of each damping film. The two damping films <NUM> may cover part of an upper surface and part of a lower surface of the cantilever transducer <NUM>, respectively. As shown in <FIG>, the two damping films <NUM> may be disposed on the upper surface and the lower surface of the cantilever transducer <NUM> at <NUM>°. The overlap part of one of the two damping films <NUM> and the cantilever transducer <NUM> may be close to an end other than the fixed end of the cantilever transducer <NUM>, and overlap part of the other of the two damping films <NUM> and the cantilever transducer <NUM> may be close to a center line of the cantilever transducer <NUM>. The thickness of each of the two damping films <NUM> may be constant and same with each other.

<FIG> is a structural schematic diagram illustrating an exemplary microphone <NUM>. As shown in <FIG>, the microphone <NUM> may include a housing <NUM>, a cantilever transducer <NUM> connecting to the housing <NUM>, and six damping films <NUM> each connected to both the cantilever transducer <NUM> and the housing <NUM>. The cantilever transducer <NUM> may fix to the housing <NUM> at an end of the cantilever transducer <NUM>. Each of the two damping films <NUM> may connect to the housing <NUM> at an end of each damping film <NUM> and connect to the cantilever transducer <NUM> at the other end of each damping film. Each of the six damping films <NUM> may cover part of an upper surface or part of a lower surface of the cantilever transducer <NUM>. As shown in <FIG>, each of the six damping films <NUM> may be disposed on the upper surface or the lower surface of the cantilever transducer <NUM> at <NUM>°. The overlap part of each of the six damping films <NUM> and the cantilever transducer <NUM> may be distributed from the fixed end of the cantilever transducer <NUM> to the other end. The thickness of each of the six damping films <NUM> may be constant and same with each other.

<FIG> is a schematic diagram illustrating exemplary frequency response curves of a microphone <NUM> without damping films and a microphone <NUM> including at least one damping film <NUM> disposed on a surface of a cantilever transducer <NUM> at <NUM>°. As shown in <FIG>, the resonance frequency increases, the Q value at the resonance peak decreases after adding the at least one damping film <NUM>. The sensitivities at frequencies other than the resonance peak may be generally constant no matter whether adding the at least one damping film <NUM> or not.

The microphone <NUM> may include a transducer <NUM>, at least one damping film <NUM>, and at least one elastic element <NUM>. The at least one damping film may be connected to the transducer <NUM> and the at least one elastic element <NUM>, respectively. The microphone <NUM> may include a plurality of transducers <NUM> and at least one damping film <NUM>. The microphone <NUM> may include a plurality of transducers <NUM>, at least one damping film <NUM>, and at least one elastic element <NUM>. The at least one damping film may be connected to the transducer <NUM> and the at least one elastic element <NUM>, respectively. The at least one elastic element <NUM> and the transducer <NUM> (or the plurality of transducers <NUM>) may be arranged in a predetermined distribution mode. The predetermined distribution mode may include a horizontal distribution mode, a vertical distribution mode, an array distribution mode, a random distribution mode, or the like, or any combination thereof. The at least one damping film <NUM> may cover at least part of at least one surface of the at least one elastic element <NUM>.

<FIG> is a structural schematic diagram illustrating an exemplary microphone <NUM>. As shown in <FIG>, the microphone <NUM> may include a housing <NUM>, a transducer <NUM>, a damping film <NUM>, and two elastic elements <NUM> (or two transducers <NUM>, or an elastic element <NUM> and a transducer <NUM>). The damping film <NUM> may cover all of a lower surface of each of the transducer(s) <NUM> and/or the elastic element(s) <NUM>. The damping film <NUM> may not connect to the housing <NUM>.

<FIG> is a structural schematic diagram illustrating an exemplary microphone <NUM>. As shown in <FIG>, the microphone <NUM> may include a housing <NUM>, a transducer <NUM>, a damping film <NUM>, and two elastic elements <NUM> (or two transducers <NUM>, or an elastic element <NUM> and a transducer <NUM>). The damping film <NUM> may cover all of a lower surface of each of the transducer(s) <NUM> and/or the elastic element(s) <NUM>. The damping film <NUM> may connect to the housing <NUM> at two ends of the damping film <NUM>.

<FIG> is a structural schematic diagram illustrating an exemplary microphone <NUM>. As shown in <FIG>, the microphone <NUM> may include a housing <NUM>, two transducers <NUM>, a damping film <NUM>, and two elastic elements <NUM> (or two transducers <NUM>, or an elastic element <NUM> and a transducer <NUM>). Each of the two damping films <NUM> may sandwich between two of the transducer(s) <NUM> and/or the elastic element(s) <NUM>. The damping film <NUM> may not connect to the housing <NUM>.

<FIG> is a structural schematic diagram illustrating an exemplary microphone <NUM>. As shown in <FIG>, the microphone <NUM> may include a housing <NUM>, two transducers <NUM>, a damping film <NUM>, and two elastic elements <NUM> (or two transducers <NUM>, or an elastic element <NUM> and a transducer <NUM>). Each of the two damping films <NUM> may sandwich between two of the transducer(s) <NUM> and/or the elastic element(s) <NUM>. Each of the two damping films <NUM> may connect to the housing <NUM> at two ends of each damping film <NUM>.

<FIG> is a structural schematic diagram illustrating an exemplary microphone <NUM>. As shown in <FIG>, the microphone <NUM> may include a housing <NUM>, a transducer <NUM>, two damping films <NUM>, and two elastic elements <NUM> (or two transducers <NUM>, or an elastic element <NUM> and a transducer <NUM>). Each of the two damping films <NUM> may connect to an end of the transducer(s) <NUM> and/or the elastic element(s) <NUM>. For example, the microphone <NUM> may include an elastic element <NUM> (or a transducer <NUM>) connecting to a damping film <NUM> connecting to a transducer <NUM> connecting to a damping film <NUM> connecting to an elastic element <NUM> (or a transducer <NUM>) in turn. The transducer <NUM>, the two damping films <NUM>, and the two elastic elements <NUM> (or two transducers <NUM>, or an elastic element <NUM> and a transducer <NUM>) may form a similar "V" shape inside the housing <NUM>. The two damping films <NUM> or the two elastic elements <NUM> (or two transducers <NUM>, or an elastic element <NUM> and a transducer <NUM>) may be symmetrical with respect to a center line of the transducer <NUM>. The two damping films <NUM> may not connect to the housing <NUM>.

<FIG> is a structural schematic diagram illustrating an exemplary microphone <NUM>. As shown in <FIG>, the microphone <NUM> may include a housing <NUM>, a transducer <NUM>, four damping films <NUM>, and two elastic elements <NUM> (or two transducers <NUM>, or an elastic element <NUM> and a transducer <NUM>). Each of the two damping films <NUM> may connect to an end of the transducer(s) <NUM> and/or the elastic element(s) <NUM>. For example, the microphone <NUM> may include a damping film <NUM> connecting to an elastic element <NUM> (or a transducer <NUM>) connecting to a damping film <NUM> connecting to a transducer <NUM> connecting to a damping film <NUM> connecting to an elastic element <NUM> (or a transducer <NUM>) in turn. The transducer <NUM>, the four damping films <NUM>, and the two elastic elements <NUM> (or two transducers <NUM>, or an elastic element <NUM> and a transducer <NUM>) may form a similar "V" shape inside the housing <NUM>. Two of the four damping films <NUM> or the two elastic elements <NUM> (or two transducers <NUM>, or an elastic element <NUM> and a transducer <NUM>) may be symmetrical with respect to a center line of the transducer <NUM>. Two of the four damping films <NUM> may connect to the housing <NUM>, respectively.

<FIG> is a structural schematic diagram illustrating an exemplary microphone <NUM>. As shown in <FIG>, the microphone <NUM> may include a housing <NUM>, a transducer <NUM>, four damping films <NUM>, and four elastic elements <NUM> (or four transducers <NUM>, or an elastic element <NUM> and three transducers <NUM>, or two elastic elements <NUM> and two transducers <NUM>, or three elastic elements <NUM> and a transducer <NUM>). Each of the four damping films <NUM> may connect to an end of the transducer(s) <NUM> and/or the elastic element(s) <NUM>. The transducer <NUM>, the four damping films <NUM>, and the four elastic elements <NUM> (or four transducers <NUM>, or an elastic element <NUM> and three transducers <NUM>, or two elastic elements <NUM> and two transducers <NUM>, or three elastic elements <NUM> and a transducer <NUM>) may form a similar "X" shape inside the housing <NUM>. Two of the four damping films <NUM> or two of the four elastic elements <NUM> (or four transducers <NUM>, or an elastic element <NUM> and three transducers <NUM>, or two elastic elements <NUM> and two transducers <NUM>, or three elastic elements <NUM> and a transducer <NUM>) may be symmetrically with respect to a center line of the transducer <NUM>. The four damping films <NUM> may not connect to the housing <NUM>.

<FIG> is a structural schematic diagram illustrating an exemplary microphone <NUM>. As shown in <FIG>, the microphone <NUM> may include a housing <NUM>, a transducer <NUM>, six damping films <NUM>, and four elastic elements <NUM> (or four transducers <NUM>, or an elastic element <NUM> and three transducers <NUM>, or two elastic elements <NUM> and two transducers <NUM>, or three elastic elements <NUM> and a transducer <NUM>). Each of the four damping films <NUM> may connect to an end of the transducer(s) <NUM> and/or the elastic element(s) <NUM>. The transducer <NUM>, the six damping films <NUM>, and the four elastic elements <NUM> (or four transducers <NUM>, or an elastic element <NUM> and three transducers <NUM>, or two elastic elements <NUM> and two transducers <NUM>, or three elastic elements <NUM> and a transducer <NUM>) may form a similar "X" shape inside the housing <NUM>. Two of the six damping films <NUM> or two of the four elastic elements <NUM> (or four transducers <NUM>, or an elastic element <NUM> and three transducers <NUM>, or two elastic elements <NUM> and two transducers <NUM>, or three elastic elements <NUM> and a transducer <NUM>) may be symmetrically with respect to a center line of the transducer <NUM>. Four of the six damping films <NUM> may connect to the housing <NUM>.

<FIG> is a schematic diagram illustrating exemplary frequency response curves of a microphone <NUM> including a transducer <NUM> and a microphone <NUM> including a transducer <NUM> and two elastic elements <NUM>. As shown in <FIG>, the frequency response curve of the microphone <NUM> including a transducer <NUM> and two elastic elements <NUM> may include three resonance peaks. The frequency response curve of the microphone <NUM> including a transducer <NUM> may include only one resonance peak. The sensitivities before the resonance peak of the microphone <NUM> including the two elastic elements <NUM> may be greater than that of the microphone <NUM> including only one transducer <NUM>. The Q value before the resonance peak of the microphone <NUM> including the two elastic elements <NUM> may be smaller than that of the microphone <NUM> including only one transducer <NUM>.

<FIG> is a schematic diagram illustrating exemplary frequency response curves of a microphone <NUM> including a transducer <NUM> and a microphone <NUM> including two transducers <NUM> (output by one transducer <NUM>). As shown in <FIG>, the frequency response curve of the microphone <NUM> including two transducers <NUM> may include two resonance peaks. The frequency response curve of the microphone <NUM> including a transducer <NUM> may include only one resonance peak. The sensitivities before the resonance peak of the microphone <NUM> including two transducers <NUM> may be greater than that of the microphone <NUM> including only one transducer <NUM>. The Q value before the resonance peak of the microphone <NUM> including two transducers <NUM> may be smaller than that of the microphone <NUM> including only one transducer <NUM>.

It should be noted that the exemplary microphones described in the present disclosure are merely provided for the purposes of illustration, and not intended to limit the scope of the present disclosure. Various modifications to the disclosed embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other embodiments and applications without departing from the scope of the present disclosure, as uniquely defined in claim <NUM>.

Having thus described the basic concepts, it may be rather apparent to those skilled in the art after reading this detailed disclosure that the foregoing detailed disclosure is intended to be presented by way of example only and is not limiting. Various alterations, improvements, and modifications may occur and are intended to those skilled in the art, though not expressly stated herein.

Therefore, it is emphasized and should be appreciated that two or more references to "an embodiment," "one embodiment," or "an alternative embodiment" in various portions of this specification are not necessarily all referring to the same embodiment.

Accordingly, aspects of the present disclosure may be implemented entirely hardware, entirely software (including firmware, resident software, micro-code, etc.) or combining software and hardware implementation that may all generally be referred to herein as a "block," "module," "engine," "unit," "component," or "system.

In the latter scenario, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet Service Provider) or in a cloud computing environment or offered as a service such as a software as a service (SaaS).

Furthermore, the recited order of processing elements or sequences, or the use of numbers, letters, or other designations, therefore, is not intended to limit the claimed processes and methods to any order except as may be specified in the claims. Although the above disclosure discusses through various examples what is currently considered to be a variety of useful embodiments of the disclosure, it is to be understood that such detail is solely for that purpose, and that the appended claims are not limited to the disclosed embodiments, but, on the contrary, are intended to cover modifications that are within the scope of the invention, as defined in claim <NUM>. For example, although the implementation of various components described above may be embodied in a hardware device, it may also be implemented as a software-only solution-e.g., an installation on an existing server or mobile device.

Claim 1:
A microphone (<NUM>) comprising:
a housing (<NUM>) for receiving vibration signals;
a converting component (<NUM>) inside the housing (<NUM>) for converting the vibration signals into electrical signals, wherein the converting component (<NUM>) includes:
a transducer (<NUM>); and
at least one damping film (<NUM>) attached to the transducer (<NUM>); and a processing circuit (<NUM>) for processing the electrical signals; characterized in that the converting component (<NUM>) further includes:
at least two elastic elements (<NUM>), wherein the at least one damping film (<NUM>) is connected to the transducer (<NUM>) and the at least two elastic elements (<NUM>) respectively, to transmit vibrations of the at least two elastic elements (<NUM>) to the transducer (<NUM>), wherein
a resonance frequency of each of the at least two elastic elements (<NUM>) is different from each other and is within a predetermined voice frequency range.