ECHO SUPPRESSING METHOD AND DEVICE

Coefficient generator 200 generates a crosstalk coefficient that is a predetermined value and that is used to calculate the amount of crosstalk of an echo. Converter 100 uses either the output signal of a sound pickup device or the signal obtained by subtracting the output signal of an echo cancelle...

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Bibliographische Detailangaben
1. Verfasser:	HOSHUYAMA, Osamu
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ACOUSTICS DEAF-AID SETS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS MUSICAL INSTRUMENTS PHYSICS PUBLIC ADDRESS SYSTEMS SPEECH ANALYSIS OR SYNTHESIS SPEECH OR AUDIO CODING OR DECODING SPEECH OR VOICE PROCESSING SPEECH RECOGNITION TELEPHONIC COMMUNICATION TRANSMISSION
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Beschreibung
Zusammenfassung:	Coefficient generator 200 generates a crosstalk coefficient that is a predetermined value and that is used to calculate the amount of crosstalk of an echo. Converter 100 uses either the output signal of a sound pickup device or the signal obtained by subtracting the output signal of an echo canceller from the output signal of the sound pickup device as a first signal, corrects the first signal based on the crosstalk coefficient generated in coefficient generator 200, and produces a near-end signal obtained by removing the echo from the first signal.