DE60214121D1 - Quantisierung der Anregung bei einem "noise-feedback" Kodierungsverfahren - Google Patents

Quantisierung der Anregung bei einem "noise-feedback" Kodierungsverfahren

Info

Publication number
DE60214121D1
DE60214121D1 DE60214121T DE60214121T DE60214121D1 DE 60214121 D1 DE60214121 D1 DE 60214121D1 DE 60214121 T DE60214121 T DE 60214121T DE 60214121 T DE60214121 T DE 60214121T DE 60214121 D1 DE60214121 D1 DE 60214121D1
Authority
DE
Germany
Prior art keywords
quantization
excitation
feedback
noise
coding method
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE60214121T
Other languages
English (en)
Other versions
DE60214121T2 (de
Inventor
Jes Thyssen
Juin-Hwey Chen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qualcomm Inc
Original Assignee
Broadcom Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Broadcom Corp filed Critical Broadcom Corp
Publication of DE60214121D1 publication Critical patent/DE60214121D1/de
Application granted granted Critical
Publication of DE60214121T2 publication Critical patent/DE60214121T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/26—Pre-filtering or post-filtering
DE60214121T 2002-01-04 2002-12-31 Quantisierung der Anregung bei einem "noise-feedback" Kodierungsverfahren Expired - Lifetime DE60214121T2 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US34437502P 2002-01-04 2002-01-04
US344375P 2002-01-04
US10/216,276 US7206740B2 (en) 2002-01-04 2002-08-12 Efficient excitation quantization in noise feedback coding with general noise shaping
US216276 2002-08-12

Publications (2)

Publication Number Publication Date
DE60214121D1 true DE60214121D1 (de) 2006-10-05
DE60214121T2 DE60214121T2 (de) 2007-03-29

Family

ID=26910859

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60214121T Expired - Lifetime DE60214121T2 (de) 2002-01-04 2002-12-31 Quantisierung der Anregung bei einem "noise-feedback" Kodierungsverfahren

Country Status (3)

Country Link
US (1) US7206740B2 (de)
EP (1) EP1326237B1 (de)
DE (1) DE60214121T2 (de)

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US7171355B1 (en) * 2000-10-25 2007-01-30 Broadcom Corporation Method and apparatus for one-stage and two-stage noise feedback coding of speech and audio signals
US7110942B2 (en) * 2001-08-14 2006-09-19 Broadcom Corporation Efficient excitation quantization in a noise feedback coding system using correlation techniques
US7206740B2 (en) 2002-01-04 2007-04-17 Broadcom Corporation Efficient excitation quantization in noise feedback coding with general noise shaping
US6751587B2 (en) 2002-01-04 2004-06-15 Broadcom Corporation Efficient excitation quantization in noise feedback coding with general noise shaping
US8473286B2 (en) * 2004-02-26 2013-06-25 Broadcom Corporation Noise feedback coding system and method for providing generalized noise shaping within a simple filter structure
US8335684B2 (en) * 2006-07-12 2012-12-18 Broadcom Corporation Interchangeable noise feedback coding and code excited linear prediction encoders
US8706479B2 (en) * 2008-11-14 2014-04-22 Broadcom Corporation Packet loss concealment for sub-band codecs
GB2466673B (en) 2009-01-06 2012-11-07 Skype Quantization
GB2466675B (en) * 2009-01-06 2013-03-06 Skype Speech coding
GB2466671B (en) 2009-01-06 2013-03-27 Skype Speech encoding
EP2830064A1 (de) 2013-07-22 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zur Decodierung und Codierung eines Audiosignals unter Verwendung adaptiver Spektralabschnittsauswahl
CN112927724B (zh) 2014-07-29 2024-03-22 瑞典爱立信有限公司 用于估计背景噪声的方法和背景噪声估计器

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Also Published As

Publication number Publication date
EP1326237A3 (de) 2005-01-19
EP1326237B1 (de) 2006-08-23
US20030135367A1 (en) 2003-07-17
DE60214121T2 (de) 2007-03-29
US7206740B2 (en) 2007-04-17
EP1326237A2 (de) 2003-07-09

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Owner name: QUALCOMM INC., SAN DIEGO, CALIF., US