Abstract:
A computer includes a digital signal processor chip. The digital signal processor chip is configured to perform an optimization and/or a sound effect operation on an audio signal. Additionally, the digital signal processor may not perform the operation on the audio signal when the earphone is not couple to a jack.

Description:
FIELD 
       [0001]    The subject matter herein generally relates to an audio processing system for a computer. 
       BACKGROUND 
       [0002]    On plugging into a jack in a motherboard, a high-class earphone can generate a better sound effect than a common earphone, owing to additional optimization operations having performed on the received audio signal from the jack by itself. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0003]    Implementations of the present technology will now be described, by way of example only, with reference to the attached figures. 
           [0004]      FIG. 1  is a block diagram of a motherboard of the present disclosure. 
           [0005]      FIG. 2  is a block diagram of a computer of the present disclosure. 
       
    
    
     DETAILED DESCRIPTION 
       [0006]    It will be appreciated that for simplicity and clarity of illustration, where appropriate, reference numerals have been repeated among the different figures to indicate corresponding or analogous elements. In addition, numerous specific details are set forth in order to provide a thorough understanding of the embodiments described herein. However, it will be understood by those of ordinary skill in the art that the embodiments described herein can be practiced without these specific details. In other instances, methods, procedures and components have not been described in detail so as not to obscure the related relevant feature being described. Also, the description is not to be considered as limiting the scope of the embodiments described herein. The drawings are not necessarily to scale and the proportions of certain parts may be exaggerated to better illustrate details and features of the present disclosure. 
         [0007]    Several definitions that apply throughout this disclosure will now be presented. 
         [0008]    The term “coupled” is defined as connected, whether directly or indirectly through intervening components, and is not necessarily limited to physical connections. The connection can be such that the objects are permanently coupled or releasably coupled. The term “comprising,” when utilized, means “including, but not necessarily limited to”; it specifically indicates open-ended inclusion or membership in the so-described combination, group, series and the like. 
         [0009]    The present disclosure is described in relation to a computer with a motherboard providing better user experience in spite of kinds of audio producing device. 
         [0010]      FIG. 1  illustrates a motherboard  10  of the present disclosure. The motherboard  10  can comprise a connector  104  having different states, an audio chip  102  outputting a first audio signal, a micro controller unit (MCU) chip  106  coupled to the connector  104  to output a control signal according to a predetermined state of the connector  104 , a digital signal processor (DSP) chip  100  performing an optimization operation on the first audio signal as receiving the control signal from the MCU chip  106 . The DSP chip  100  can further output a second audio signal to the connector  104  after performing the optimization operation on the first audio signal. 
         [0011]    In one embodiment, the connector  104  can have a first state and a second state. The connector  104  can be at the first state when an audio producing device  30  (e.g. an earphone) is plugged into the connector  104 . Alternatively, the connector  104  can be at the second state when the connector  104  has no device to be connected. In one embodiment, the connector  104  can output a first connection signal (e.g. a low-voltage level signal) when the connector  104  is at the first state, the connector  104  can output a second connection signal (e.g. a high-voltage level signal) when the connector  104  is at the second state. 
         [0012]    The MCU chip  106  is configured to receive the first connection signal or the second connection signal, and can output a corresponding control signal to the DSP chip  100  through a bus  105 . For example, the MCU chip  106  can output a first control signal when the first connection signal is received from the connector  104 , the MCU chip  106  can output a second control signal when the second connection signal is received from the connector  104 . In an illustrated embodiment, the MCU chip  106  can output the first control signal or the second control signal to the DSP chip  100  through an inter-integrated circuit (I2C) bus or a system management bus (SMBus). 
         [0013]    The DSP chip  100  can receive the first audio signal, and perform the optimization operation on the first audio signal, to generate the second audio signal. The device  30  can receive the second audio signal from the connector  104 . In one embodiment, the first audio signal may not be converted to the second audio signal when the DSP chip  100  receives the second control signal. 
         [0014]      FIG. 2  illustrates a computer  300 . The computer  300  can comprise a motherboard  101  and a display  20  coupled to the motherboard  101 . The motherboard  101  can comprise the connector  104 , the audio chip  102 , the MCU chip  106 , and the DSP chip  100  of the motherboard  10 . As comparing to the motherboard  10 , the motherboard  101  can further comprise an interface controller  108  coupled to the MCU chip  106  and the DSP chip  100  through the bus  105 . The MCU chip  106  can further generate a sound effect interface  200  on the display  20 , allowing a user to determine which sound effect is applied to the first audio signal. In one embodiment, the sound effect interface  200  can comprise sound effects of classic, pop, and country etc.. The interface controller  108  further output a selection signal to the DSP chip  100  according to user&#39;s operation on the sound effect interface  200 . The DSP chip  100  can perform a sound effect operation on the first audio signal to output a third audio signal to the connector  104 . 
         [0015]    In one embodiment, the interface controller  108  can further output the selection signal to the MCU chip  106 . The MCU chip  106  can suspend the communication between the MCU chip  106  and the DSP chip  100  for a certain time when the interface controller  108  outputs the selection signal to the DSP chip  100 . The DSP chip  100  can store a last state of the control signal before the communication between the MCU chip  106  and the DSP chip  100  resumed. 
         [0016]    While the disclosure has been described by way of example and in terms of a preferred embodiment, it is to be understood that the disclosure is not limited thereto. On the contrary, it is intended to cover various modifications and similar arrangements as would be apparent to those skilled in the art. Therefore, the range of the appended claims should be accorded the broadest interpretation so as to encompass all such modifications and similar arrangements.