DE69932861D1 - Verfahren zur kodierung eines audiosignals mit einem qualitätswert für bit-zuordnung - Google Patents
Verfahren zur kodierung eines audiosignals mit einem qualitätswert für bit-zuordnungInfo
- Publication number
- DE69932861D1 DE69932861D1 DE69932861T DE69932861T DE69932861D1 DE 69932861 D1 DE69932861 D1 DE 69932861D1 DE 69932861 T DE69932861 T DE 69932861T DE 69932861 T DE69932861 T DE 69932861T DE 69932861 D1 DE69932861 D1 DE 69932861D1
- Authority
- DE
- Germany
- Prior art keywords
- quality value
- audio signal
- coding
- bit assignment
- masking
- 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
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
- G10L19/02—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
- G10L19/0204—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 using subband decomposition
- G10L19/0208—Subband vocoders
-
- 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
- G10L19/002—Dynamic bit allocation
-
- 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
- G10L19/032—Quantisation or dequantisation of spectral components
- G10L19/035—Scalar quantisation
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/SG1999/000112 WO2001033555A1 (en) | 1999-10-30 | 1999-10-30 | Method of encoding an audio signal using a quality value for bit allocation |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69932861D1 true DE69932861D1 (de) | 2006-09-28 |
DE69932861T2 DE69932861T2 (de) | 2007-03-15 |
Family
ID=20430246
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69932861T Expired - Lifetime DE69932861T2 (de) | 1999-10-30 | 1999-10-30 | Verfahren zur kodierung eines audiosignals mit einem qualitätswert für bit-zuordnung |
Country Status (4)
Country | Link |
---|---|
US (1) | US7003449B1 (de) |
EP (1) | EP1228506B1 (de) |
DE (1) | DE69932861T2 (de) |
WO (1) | WO2001033555A1 (de) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7457415B2 (en) | 1998-08-20 | 2008-11-25 | Akikaze Technologies, Llc | Secure information distribution system utilizing information segment scrambling |
JP4803938B2 (ja) * | 2000-03-15 | 2011-10-26 | 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 | オーディオ符号化用のラゲール関数 |
US20030046707A1 (en) * | 2001-09-06 | 2003-03-06 | Ofir Shalvi | Signal compression for fiber node |
US7650277B2 (en) * | 2003-01-23 | 2010-01-19 | Ittiam Systems (P) Ltd. | System, method, and apparatus for fast quantization in perceptual audio coders |
SG135920A1 (en) * | 2003-03-07 | 2007-10-29 | St Microelectronics Asia | Device and process for use in encoding audio data |
WO2005020210A2 (en) * | 2003-08-26 | 2005-03-03 | Sarnoff Corporation | Method and apparatus for adaptive variable bit rate audio encoding |
US7634413B1 (en) * | 2005-02-25 | 2009-12-15 | Apple Inc. | Bitrate constrained variable bitrate audio encoding |
US7451070B2 (en) * | 2005-04-08 | 2008-11-11 | International Business Machines | Optimal bus operation performance in a logic simulation environment |
US7418394B2 (en) * | 2005-04-28 | 2008-08-26 | Dolby Laboratories Licensing Corporation | Method and system for operating audio encoders utilizing data from overlapping audio segments |
US8972359B2 (en) * | 2005-12-19 | 2015-03-03 | Rockstar Consortium Us Lp | Compact floating point delta encoding for complex data |
US8332216B2 (en) * | 2006-01-12 | 2012-12-11 | Stmicroelectronics Asia Pacific Pte., Ltd. | System and method for low power stereo perceptual audio coding using adaptive masking threshold |
FI20065474L (fi) * | 2006-07-04 | 2008-01-05 | Head Inhimillinen Tekijae Oy | Menetelmä ääni-informaation käsittelemiseksi |
US8010370B2 (en) * | 2006-07-28 | 2011-08-30 | Apple Inc. | Bitrate control for perceptual coding |
US8032371B2 (en) * | 2006-07-28 | 2011-10-04 | Apple Inc. | Determining scale factor values in encoding audio data with AAC |
US8780717B2 (en) | 2006-09-21 | 2014-07-15 | General Instrument Corporation | Video quality of service management and constrained fidelity constant bit rate video encoding systems and method |
US20090210222A1 (en) * | 2008-02-15 | 2009-08-20 | Microsoft Corporation | Multi-Channel Hole-Filling For Audio Compression |
US8346547B1 (en) * | 2009-05-18 | 2013-01-01 | Marvell International Ltd. | Encoder quantization architecture for advanced audio coding |
US9026450B2 (en) | 2011-03-09 | 2015-05-05 | Dts Llc | System for dynamically creating and rendering audio objects |
JP6113294B2 (ja) | 2012-11-07 | 2017-04-12 | ドルビー・インターナショナル・アーベー | 軽減された計算量の変換器snr計算 |
US9613660B2 (en) * | 2013-04-05 | 2017-04-04 | Dts, Inc. | Layered audio reconstruction system |
US9564136B2 (en) * | 2014-03-06 | 2017-02-07 | Dts, Inc. | Post-encoding bitrate reduction of multiple object audio |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5235671A (en) * | 1990-10-15 | 1993-08-10 | Gte Laboratories Incorporated | Dynamic bit allocation subband excited transform coding method and apparatus |
JP2906646B2 (ja) * | 1990-11-09 | 1999-06-21 | 松下電器産業株式会社 | 音声帯域分割符号化装置 |
JP3446216B2 (ja) * | 1992-03-06 | 2003-09-16 | ソニー株式会社 | 音声信号処理方法 |
US5623577A (en) | 1993-07-16 | 1997-04-22 | Dolby Laboratories Licensing Corporation | Computationally efficient adaptive bit allocation for encoding method and apparatus with allowance for decoder spectral distortions |
EP0691052B1 (de) * | 1993-12-23 | 2002-10-30 | Koninklijke Philips Electronics N.V. | Verfahren und gerät zum kodieren von mit mehreren bits kodiertem digitalem ton durch subtraktion eines adaptiven zittersignals, einfügen von versteckten kanalbits und filtrierung, sowie kodiergerät zur verwendung bei diesem verfahren |
JP2778482B2 (ja) | 1994-09-26 | 1998-07-23 | 日本電気株式会社 | 帯域分割符号化装置 |
JP2776300B2 (ja) * | 1995-05-31 | 1998-07-16 | 日本電気株式会社 | 音声信号処理回路 |
US5706392A (en) * | 1995-06-01 | 1998-01-06 | Rutgers, The State University Of New Jersey | Perceptual speech coder and method |
GB9822930D0 (en) * | 1998-10-20 | 1998-12-16 | Canon Kk | Speech processing apparatus and method |
US6370502B1 (en) * | 1999-05-27 | 2002-04-09 | America Online, Inc. | Method and system for reduction of quantization-induced block-discontinuities and general purpose audio codec |
US6226616B1 (en) * | 1999-06-21 | 2001-05-01 | Digital Theater Systems, Inc. | Sound quality of established low bit-rate audio coding systems without loss of decoder compatibility |
-
1999
- 1999-10-30 DE DE69932861T patent/DE69932861T2/de not_active Expired - Lifetime
- 1999-10-30 WO PCT/SG1999/000112 patent/WO2001033555A1/en active IP Right Grant
- 1999-10-30 EP EP99954579A patent/EP1228506B1/de not_active Expired - Lifetime
- 1999-10-30 US US10/129,045 patent/US7003449B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
WO2001033555A1 (en) | 2001-05-10 |
US7003449B1 (en) | 2006-02-21 |
EP1228506A1 (de) | 2002-08-07 |
EP1228506B1 (de) | 2006-08-16 |
DE69932861T2 (de) | 2007-03-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8328 | Change in the person/name/address of the agent |
Representative=s name: HEYER, V., DIPL.-PHYS. DR.RER.NAT., PAT.-ANW., 806 |