NOISE ELIMINATING DEVICE FOR BONE TRANSMITTED VOICE

PURPOSE:To provide the device in which the auditory sense of incongruity caused by tooth chattering is reduced in the voice detected by bone transmission microphone. CONSTITUTION:A noise eliminating device 3 consists of a bone transmission microphone 1 which detects the vibration of a body tissue ca...

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Bibliographische Detailangaben
Hauptverfasser:	FURUMURA MITSUO, HAYASHI KEIJI
Format:	Patent
Sprache:	eng
Schlagworte:	ACOUSTICS ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE LIME, MAGNESIA METALLURGY MUSICAL INSTRUMENTS PHYSICS REFRACTORIES SLAG SPEECH ANALYSIS OR SYNTHESIS SPEECH OR AUDIO CODING OR DECODING SPEECH OR VOICE PROCESSING SPEECH RECOGNITION TREATMENT OF NATURAL STONE
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Beschreibung
Zusammenfassung:	PURPOSE:To provide the device in which the auditory sense of incongruity caused by tooth chattering is reduced in the voice detected by bone transmission microphone. CONSTITUTION:A noise eliminating device 3 consists of a bone transmission microphone 1 which detects the vibration of a body tissue caused by uttering and converts it to voice signals, a noise detecting section 4 which detects pulse type noises contained in the detected voice signals caused by the tooth chattering of an uttering person and a noise eliminating section 5 which eliminates the pulse type noises detected by the section 4. The section 4 extracts the waveform feature of the pulse type noises detected by the microphone 1 and detects the tooth chattering. The section 5 makes the amplitudes of detected pulse type noises small or makes them mute state or the noise waveform is replaced using waveform data before and after the noise.