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Hello,Lady!

Remodeling of the Sensor for NonNon-Audible
Murmur (NAM) Interface Communication

Body Transmitted
Paralinguistic
Expression

Applied Linguistic Science Lab.
Yoshitaka Nakajima D2
Sep. 24 2004

Lang. model

For VocallyHandicapped

Hello

Respiration
Heart Rateetc.

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NAM Interface Communication

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Backward
Echo

Bone
Acoustic
Shadow

Hello!

NAM Interface Communication

NAM Interface Communication

Skin

hello

NAM sensor
Recognition by HMM
Concept Chart of NAM Interface Communication

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Vital SignsStethoscopic NAM MicrophoneUUUUbbbbIIIqIqqquuuuIIItItttoooouuuussssNNNNeeeettttwwwwoooorrrrkkkkeeeeddddMMMMeeeeddddIIIaIaaaCCCCoooommmmppppuuuuttttIIInInnngggg

Sound Speed(m/s)

AcousticImpedance

AIR3300.0004

WATER

1480

1.52

BLOOD

1570

1.62

BRAIN

1540

1.6
1.35

Echo Probe

Newly Build AcousticAcoustic
Modelwith model
NAM

Action Monitor

NAM Interface Communication

Silicone Disc

Wired or Wireless Network

Modulation or Morphing

FAT

1450

Soft Tissue(mean)

1540

BONE

4080

nothingcoin

Hard Silicone

Soft Silicone

7.8

Visible Difference of Acoustic Impedances by Medical Ultrasonography

Visible Difference of Acoustic Impedances by Medical Ultrasonography

NAM Interface Communication

NAM Interface Communication

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Soft Silicone NAM Microphone

OCMSS Type NAM Microphone(Open Condenser Mediated with Soft Silicone)
NAM Interface Communication

OCWSS Type NAM Microphone(Open Condenser Wrapped with Soft Silicone)
NAM Interface Communication

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1. Evaluation of Bandwidth
Air Conducted Speech Sound (Control)

Whisper0KΩ (Maximum Input Gain Volume)

Normal Speech

2. Evaluation of the Contact Sensitivity
We fixed input gain volume of microphone amplifier into minimum (50KΩ).

TMSS Type NAM Microphone(Transducer Mediated with Soft Silicone)
NAM Interface Communication

15622-12176

We estimated contact sensitivity of NAM microphoneby the amplitude of NAM signals at fixed gain volume.

NAM Interface Communication

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NAM Microphone Spec.

NMHFHeadset(NAM Microphone withHuman Filter).
NormalSpeech

NAM

Microphone Amplifier
Repeated TSP Signals

NAM Microphone

Gain Volume 0〜50KΩ
for Sampling Best NAM

50cm

FFT100dB

Normal Microphone at Ear (Control) Frequency Responses of NMHF

Gain Volume for Sampling Normal Speech

NAM Interface Communication

Stethoscopic

TMSS

NAM Interface Communication

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NAM Microphone Spec.
Iterative MLLR

OCMSS

OCWSS

NAM Interface Communication

UUUUbbbbIIIqIqqquuuuIIItItttoooouuuussssNNNNeeeettttwwwwoooorrrrkkkkeeeeddddMMMMeeeeddddIIIaIaaaCCCCoooommmmppppuuuuttttIIInInnnggggNAM Interface Communication

UUUUbbbbIIIqIqqquuuuIIItItttoooouuuussssNNNNeeeettttwwwwoooorrrrkkkkeeeeddddMMMMeeeeddddIIIaIaaaCCCCoooommmmppppuuuuttttIIInInnnggggConclusion• The new soft silicone NAM microphones provide
higher accuracy of NAM recognition rate, clearer
NAM sounds that convey the utterances even without
digital signal processing, and more robustness against
noise than the former type.
• Not only NAM recognition but also “NAM phone”(Non-Voice Phone) will be possible.
• We propose that NAM should be used for both humanto-human and human-to-machine interfaces under thename of ‘NAM Interface Communication’Communication’.
NAM Interface Communication

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KOTODAMA

NAM Interface Communication

NAM Interface Communication3