JP5485488B2 - 正弦波符号化 - Google Patents
正弦波符号化 Download PDFInfo
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- JP5485488B2 JP5485488B2 JP2002503861A JP2002503861A JP5485488B2 JP 5485488 B2 JP5485488 B2 JP 5485488B2 JP 2002503861 A JP2002503861 A JP 2002503861A JP 2002503861 A JP2002503861 A JP 2002503861A JP 5485488 B2 JP5485488 B2 JP 5485488B2
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- sine wave
- phase
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- phase jitter
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- 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
- G10L19/005—Correction of errors induced by the transmission channel, if related to the coding algorithm
-
- 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
- G10L19/02—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 spectral analysis, e.g. transform vocoders or subband vocoders
Description
Claims (8)
- 音声信号を符号化する方法であって、
前記音声信号における少なくとも1つの正弦波成分の周波数及び振幅情報を決定するステップと、
前記周波数及び振幅情報を表す正弦波パラメタを送信するステップとを有する方法において、
前記方法は更に、前記送信された正弦波パラメタから前記正弦波成分を復号器において復元する間に加えられるべきランダム位相の量を表す位相ジッタパラメタを前記復号器に送信するステップを有することを特徴とする方法。
- 前記位相ジッタパラメタは、前記正弦波成分に対応する複数の正弦波セグメントで構成されたトラックの最初の時点で前記正弦波パラメタとほぼ一緒に送信される請求項1に記載の方法。
- 単一の位相ジッタパラメタが、高次的に関係する周波数を有する複数の正弦波成分のために送信される請求項1に記載の方法。
- 請求項1に記載の方法であって、前記方法は更に、
前記正弦波成分の実際の位相と前記送信される正弦波パラメタから決定される予測される位相との差を決定するステップと、
前記差から前記位相ジッタパラメタを得るステップとを有する方法。
- 符号器において符号化された音声信号を復号する方法であって、前記方法は、
前記音声信号における少なくとも1つの正弦波成分の周波数及び振幅情報を表す正弦波パラメタを入力するステップと、
前記正弦波パラメタから前記少なくとも1つの正弦波成分を復元するステップとを有する方法において、前記方法は更に、
前記符号器からの位相ジッタパラメタを入力するステップと、
前記位相ジッタパラメタから得られるランダム位相の量を前記正弦波成分に加えるステップとを有することを特徴とする方法。
- 音声信号における少なくとも1つの正弦波成分の周波数及び振幅情報を決定する手段と、
前記周波数及び振幅情報を表す正弦波パラメタを送信する手段とを有する音声符号器において、
前記音声符号器は更に、前記送信された正弦波パラメタから前記正弦波成分を復号器において復元する間に加えられるべきランダム位相の量を表す位相ジッタパラメタを前記復号器に送信する手段を有することを特徴とする音声符号器。
- 符号器において符号化された音声信号における少なくとも1つの正弦波成分の周波数及び振幅情報を表す正弦波パラメタを入力する手段と、
前記正弦波パラメタから前記少なくとも1つの正弦波成分を復元する手段とを有するオーディオプレーヤにおいて、前記オーディオプレーヤは更に、
前記符号器からの位相ジッタパラメタを入力する手段と、
前記位相ジッタパラメタから得られるランダム位相の量を前記正弦波成分に加える手段とを有することを特徴とするオーディオプレーヤ。
- 請求項6に記載の音声符号器と請求項7に記載のオーディオプレーヤとを有するオーディオシステム。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00202144 | 2000-06-20 | ||
EP00202144.2 | 2000-06-20 | ||
PCT/EP2001/006758 WO2001099097A1 (en) | 2000-06-20 | 2001-06-14 | Sinusoidal coding |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2012283301A Division JP5792710B2 (ja) | 2000-06-20 | 2012-12-26 | 正弦波符号化 |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2003536112A JP2003536112A (ja) | 2003-12-02 |
JP2003536112A5 JP2003536112A5 (ja) | 2008-08-14 |
JP5485488B2 true JP5485488B2 (ja) | 2014-05-07 |
Family
ID=8171658
Family Applications (2)
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JP2002503861A Expired - Lifetime JP5485488B2 (ja) | 2000-06-20 | 2001-06-14 | 正弦波符号化 |
JP2012283301A Expired - Lifetime JP5792710B2 (ja) | 2000-06-20 | 2012-12-26 | 正弦波符号化 |
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JP2012283301A Expired - Lifetime JP5792710B2 (ja) | 2000-06-20 | 2012-12-26 | 正弦波符号化 |
Country Status (8)
Country | Link |
---|---|
US (1) | US7739106B2 (ja) |
EP (1) | EP1203369B1 (ja) |
JP (2) | JP5485488B2 (ja) |
KR (1) | KR100861884B1 (ja) |
CN (1) | CN1193347C (ja) |
AT (1) | ATE303646T1 (ja) |
DE (1) | DE60113034T2 (ja) |
WO (1) | WO2001099097A1 (ja) |
Families Citing this family (15)
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RU2005114916A (ru) * | 2002-10-17 | 2005-10-10 | Конинклейке Филипс Электроникс Н.В. (Nl) | Синусоидальное кодирование звука с обновлением фазы |
ES2298568T3 (es) * | 2002-11-29 | 2008-05-16 | Koninklijke Philips Electronics N.V. | Descodificacion de audio. |
KR101008529B1 (ko) * | 2002-12-19 | 2011-01-14 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | 오디오 인코딩에서의 정현파 선택 |
CN1729510A (zh) * | 2002-12-19 | 2006-02-01 | 皇家飞利浦电子股份有限公司 | 音频编码中的正弦波选择 |
EP1649453B1 (en) * | 2003-07-18 | 2009-03-11 | Koninklijke Philips Electronics N.V. | Low bit-rate audio encoding |
JP2007504503A (ja) * | 2003-09-05 | 2007-03-01 | コニンクリユケ フィリップス エレクトロニクス エヌ.ブイ. | 低ビットレートオーディオ符号化 |
JP2007509363A (ja) * | 2003-10-13 | 2007-04-12 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | オーディオ符号化方法及び装置 |
US20100131276A1 (en) * | 2005-07-14 | 2010-05-27 | Koninklijke Philips Electronics, N.V. | Audio signal synthesis |
FR2897212A1 (fr) * | 2006-02-09 | 2007-08-10 | France Telecom | Procede de codage d'un signal audio source, dispositif de codage, procede de decodage, signal, support de donnees, produits programme d'ordinateur correspondants |
KR101299155B1 (ko) * | 2006-12-29 | 2013-08-22 | 삼성전자주식회사 | 오디오 부호화 및 복호화 장치와 그 방법 |
KR101080421B1 (ko) * | 2007-03-16 | 2011-11-04 | 삼성전자주식회사 | 정현파 오디오 코딩 방법 및 장치 |
US9872066B2 (en) * | 2007-12-18 | 2018-01-16 | Ibiquity Digital Corporation | Method for streaming through a data service over a radio link subsystem |
US8620660B2 (en) * | 2010-10-29 | 2013-12-31 | The United States Of America, As Represented By The Secretary Of The Navy | Very low bit rate signal coder and decoder |
US9472199B2 (en) | 2011-09-28 | 2016-10-18 | Lg Electronics Inc. | Voice signal encoding method, voice signal decoding method, and apparatus using same |
GB201401566D0 (en) * | 2014-01-30 | 2014-03-19 | Smiths Medical Int Ltd | Respiratory therapy systems, sensors and methods |
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2001
- 2001-06-14 DE DE60113034T patent/DE60113034T2/de not_active Expired - Lifetime
- 2001-06-14 CN CNB018017274A patent/CN1193347C/zh not_active Expired - Lifetime
- 2001-06-14 AT AT01953981T patent/ATE303646T1/de not_active IP Right Cessation
- 2001-06-14 WO PCT/EP2001/006758 patent/WO2001099097A1/en active IP Right Grant
- 2001-06-14 JP JP2002503861A patent/JP5485488B2/ja not_active Expired - Lifetime
- 2001-06-14 EP EP01953981A patent/EP1203369B1/en not_active Expired - Lifetime
- 2001-06-14 KR KR1020027002127A patent/KR100861884B1/ko active IP Right Grant
- 2001-06-20 US US09/885,707 patent/US7739106B2/en active Active
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- 2012-12-26 JP JP2012283301A patent/JP5792710B2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP1203369A1 (en) | 2002-05-08 |
EP1203369B1 (en) | 2005-08-31 |
US20020007268A1 (en) | 2002-01-17 |
DE60113034T2 (de) | 2006-06-14 |
JP2003536112A (ja) | 2003-12-02 |
WO2001099097A1 (en) | 2001-12-27 |
DE60113034D1 (de) | 2005-10-06 |
CN1193347C (zh) | 2005-03-16 |
US7739106B2 (en) | 2010-06-15 |
JP2013080252A (ja) | 2013-05-02 |
JP5792710B2 (ja) | 2015-10-14 |
KR100861884B1 (ko) | 2008-10-09 |
ATE303646T1 (de) | 2005-09-15 |
CN1383546A (zh) | 2002-12-04 |
KR20020027557A (ko) | 2002-04-13 |
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