CN101964670B - 回声抑制方法及回声抑制设备 - Google Patents

回声抑制方法及回声抑制设备 Download PDF

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Publication number
CN101964670B
CN101964670B CN201010235614XA CN201010235614A CN101964670B CN 101964670 B CN101964670 B CN 101964670B CN 201010235614X A CN201010235614X A CN 201010235614XA CN 201010235614 A CN201010235614 A CN 201010235614A CN 101964670 B CN101964670 B CN 101964670B
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signal
spectrum
echo
background noise
gain
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CN101964670A (zh
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刘恩彩
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Yamaha Corp
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Yamaha Corp
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/08—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic
    • H04M9/082—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic using echo cancellers

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Telephone Function (AREA)
  • Circuit For Audible Band Transducer (AREA)
CN201010235614XA 2009-07-21 2010-07-21 回声抑制方法及回声抑制设备 Expired - Fee Related CN101964670B (zh)

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JP2009-169865 2009-07-21
JP2009169865A JP5347794B2 (ja) 2009-07-21 2009-07-21 エコー抑圧方法およびその装置

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CN101964670B true CN101964670B (zh) 2013-10-23

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CN101964670A (zh) 2011-02-02
US20110019831A1 (en) 2011-01-27
JP5347794B2 (ja) 2013-11-20
US8315380B2 (en) 2012-11-20
JP2011024163A (ja) 2011-02-03

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