WO2000045378A3 - Efficient spectral envelope coding using variable time/frequency resolution and time/frequency switching - Google Patents
Efficient spectral envelope coding using variable time/frequency resolution and time/frequency switching Download PDFInfo
- Publication number
- WO2000045378A3 WO2000045378A3 PCT/SE2000/000158 SE0000158W WO0045378A3 WO 2000045378 A3 WO2000045378 A3 WO 2000045378A3 SE 0000158 W SE0000158 W SE 0000158W WO 0045378 A3 WO0045378 A3 WO 0045378A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- time
- frequency
- spectral envelope
- coding
- envelope coding
- Prior art date
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
- G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
- G10L25/18—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being spectral information of each sub-band
Abstract
Priority Applications (19)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU25856/00A AU2585600A (en) | 1999-01-27 | 2000-01-26 | Efficient spectral envelope coding using variable time/frequency resolution and time/frequency switching |
US09/763,128 US6978236B1 (en) | 1999-10-01 | 2000-01-26 | Efficient spectral envelope coding using variable time/frequency resolution and time/frequency switching |
DK00968271T DK1216474T3 (en) | 1999-10-01 | 2000-09-29 | Effective spectral envelope curve coding using variable time / frequency resolution |
AT00968271T ATE271250T1 (en) | 1999-10-01 | 2000-09-29 | CODING THE ENVELOPE OF THE SPECTRUM USING VARIABLE TIME/FREQUENCY RESOLUTION |
DE60012198T DE60012198T2 (en) | 1999-10-01 | 2000-09-29 | ENCODING THE CORD OF THE SPECTRUM BY VARIABLE TIME / FREQUENCY RESOLUTION |
PCT/SE2000/001887 WO2001026095A1 (en) | 1999-10-01 | 2000-09-29 | Efficient spectral envelope coding using variable time/frequency resolution and time/frequency switching |
BRPI0014642A BRPI0014642B1 (en) | 1999-10-01 | 2000-09-29 | spectral envelope coding using variable time-frequency resolution and time-frequency shifting |
CNB008136025A CN1172293C (en) | 1999-10-01 | 2000-09-29 | Efficient spectral envelope coding using variable time/frequency resolution and time/frequency switching |
JP2001528974A JP4035631B2 (en) | 1999-10-01 | 2000-09-29 | Efficient spectral envelope coding using variable time / frequency resolution and time / frequency switching |
RU2002111665/09A RU2236046C2 (en) | 1999-10-01 | 2000-09-29 | Effective encoding of spectrum envelope with use of variable resolution in time and frequency and switching time/frequency |
PT00968271T PT1216474E (en) | 1999-10-01 | 2000-09-29 | EFFICIENT CODE OF SPECIAL ENVELOPE USING RESOLUTION TIME / VARIABLE FREQUENCY |
EP00968271A EP1216474B1 (en) | 1999-10-01 | 2000-09-29 | Efficient spectral envelope coding using variable time/frequency resolution |
AU78212/00A AU7821200A (en) | 1999-10-01 | 2000-09-29 | Efficient spectral envelope coding using variable time/frequency resolution and time/frequency switching |
ES00968271T ES2223591T3 (en) | 1999-10-01 | 2000-09-29 | EFFECTIVE CODIFICATION OF SPECIAL ENVELOPE USING A RESOLUTION TIME / VARIABLE FREQUENCY. |
HK03101398.3A HK1049401B (en) | 1999-10-01 | 2003-02-24 | Effective spectral envelope coding method and coding/encoding apparatus thereof |
JP2005292388A JP4334526B2 (en) | 1999-10-01 | 2005-10-05 | Efficient spectral envelope coding using variable time / frequency resolution and time / frequency switching |
JP2005292384A JP4628921B2 (en) | 1999-10-01 | 2005-10-05 | Efficient spectral envelope coding using variable time / frequency resolution and time / frequency switching |
US11/246,283 US7181389B2 (en) | 1999-10-01 | 2005-10-11 | Efficient spectral envelope coding using variable time/frequency resolution and time/frequency switching |
US11/246,284 US7191121B2 (en) | 1999-10-01 | 2005-10-11 | Efficient spectral envelope coding using variable time/frequency resolution and time/frequency switching |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9900256-0 | 1999-01-27 | ||
SE9900256A SE9900256D0 (en) | 1999-01-27 | 1999-01-27 | Method and apparatus for improving the efficiency and sound quality of audio encoders |
SE9903552A SE9903552D0 (en) | 1999-01-27 | 1999-10-01 | Efficient spectral envelope coding using dynamic scalefactor grouping and time / frequency switching |
SE9903552-9 | 1999-10-01 |
Related Child Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09763128 A-371-Of-International | 2000-01-26 | ||
US11/246,284 Division US7191121B2 (en) | 1999-10-01 | 2005-10-11 | Efficient spectral envelope coding using variable time/frequency resolution and time/frequency switching |
US11/246,283 Division US7181389B2 (en) | 1999-10-01 | 2005-10-11 | Efficient spectral envelope coding using variable time/frequency resolution and time/frequency switching |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2000045378A2 WO2000045378A2 (en) | 2000-08-03 |
WO2000045378A3 true WO2000045378A3 (en) | 2000-11-16 |
Family
ID=26663488
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/SE2000/000158 WO2000045378A2 (en) | 1999-01-27 | 2000-01-26 | Efficient spectral envelope coding using variable time/frequency resolution and time/frequency switching |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU2585600A (en) |
SE (1) | SE9903552D0 (en) |
WO (1) | WO2000045378A2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9311922B2 (en) | 2004-03-01 | 2016-04-12 | Dolby Laboratories Licensing Corporation | Method, apparatus, and storage medium for decoding encoded audio channels |
Families Citing this family (19)
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US7461002B2 (en) | 2001-04-13 | 2008-12-02 | Dolby Laboratories Licensing Corporation | Method for time aligning audio signals using characterizations based on auditory events |
US7610205B2 (en) | 2002-02-12 | 2009-10-27 | Dolby Laboratories Licensing Corporation | High quality time-scaling and pitch-scaling of audio signals |
US7283954B2 (en) | 2001-04-13 | 2007-10-16 | Dolby Laboratories Licensing Corporation | Comparing audio using characterizations based on auditory events |
US7711123B2 (en) | 2001-04-13 | 2010-05-04 | Dolby Laboratories Licensing Corporation | Segmenting audio signals into auditory events |
ATE387000T1 (en) | 2001-05-10 | 2008-03-15 | Dolby Lab Licensing Corp | IMPROVE TRANSIENT PERFORMANCE IN LOW BITRATE ENCODERS BY SUPPRESSING PRE-NOISE |
US8605911B2 (en) | 2001-07-10 | 2013-12-10 | Dolby International Ab | Efficient and scalable parametric stereo coding for low bitrate audio coding applications |
SE0202159D0 (en) | 2001-07-10 | 2002-07-09 | Coding Technologies Sweden Ab | Efficientand scalable parametric stereo coding for low bitrate applications |
EP1423847B1 (en) | 2001-11-29 | 2005-02-02 | Coding Technologies AB | Reconstruction of high frequency components |
KR100949232B1 (en) | 2002-01-30 | 2010-03-24 | 파나소닉 주식회사 | Encoding device, decoding device and methods thereof |
SE0202770D0 (en) | 2002-09-18 | 2002-09-18 | Coding Technologies Sweden Ab | Method of reduction of aliasing is introduced by spectral envelope adjustment in real-valued filterbanks |
US7508947B2 (en) | 2004-08-03 | 2009-03-24 | Dolby Laboratories Licensing Corporation | Method for combining audio signals using auditory scene analysis |
US7991610B2 (en) | 2005-04-13 | 2011-08-02 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Adaptive grouping of parameters for enhanced coding efficiency |
BRPI0611505A2 (en) | 2005-06-03 | 2010-09-08 | Dolby Lab Licensing Corp | channel reconfiguration with secondary information |
US8041578B2 (en) | 2006-10-18 | 2011-10-18 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Encoding an information signal |
US8417532B2 (en) | 2006-10-18 | 2013-04-09 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Encoding an information signal |
US8126721B2 (en) | 2006-10-18 | 2012-02-28 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Encoding an information signal |
KR101182258B1 (en) * | 2008-07-11 | 2012-09-14 | 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. | Apparatus and Method for Calculating Bandwidth Extension Data Using a Spectral Tilt Controlling Framing |
KR101804649B1 (en) * | 2013-01-29 | 2018-01-10 | 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. | Audio Encoders, Audio Decoders, Systems, Methods and Computer Programs Using an Increased Temporal Resolution in Temporal Proximity of Onsets or Offsets of Fricatives or Affricates |
TWI557726B (en) * | 2013-08-29 | 2016-11-11 | 杜比國際公司 | System and method for determining a master scale factor band table for a highband signal of an audio signal |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5504832A (en) * | 1991-12-24 | 1996-04-02 | Nec Corporation | Reduction of phase information in coding of speech |
US5581653A (en) * | 1993-08-31 | 1996-12-03 | Dolby Laboratories Licensing Corporation | Low bit-rate high-resolution spectral envelope coding for audio encoder and decoder |
US5737718A (en) * | 1994-06-13 | 1998-04-07 | Sony Corporation | Method, apparatus and recording medium for a coder with a spectral-shape-adaptive subband configuration |
WO1998057436A2 (en) * | 1997-06-10 | 1998-12-17 | Lars Gustaf Liljeryd | Source coding enhancement using spectral-band replication |
US5852806A (en) * | 1996-03-19 | 1998-12-22 | Lucent Technologies Inc. | Switched filterbank for use in audio signal coding |
-
1999
- 1999-10-01 SE SE9903552A patent/SE9903552D0/en unknown
-
2000
- 2000-01-26 WO PCT/SE2000/000158 patent/WO2000045378A2/en active Application Filing
- 2000-01-26 AU AU25856/00A patent/AU2585600A/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5504832A (en) * | 1991-12-24 | 1996-04-02 | Nec Corporation | Reduction of phase information in coding of speech |
US5581653A (en) * | 1993-08-31 | 1996-12-03 | Dolby Laboratories Licensing Corporation | Low bit-rate high-resolution spectral envelope coding for audio encoder and decoder |
US5737718A (en) * | 1994-06-13 | 1998-04-07 | Sony Corporation | Method, apparatus and recording medium for a coder with a spectral-shape-adaptive subband configuration |
US5852806A (en) * | 1996-03-19 | 1998-12-22 | Lucent Technologies Inc. | Switched filterbank for use in audio signal coding |
WO1998057436A2 (en) * | 1997-06-10 | 1998-12-17 | Lars Gustaf Liljeryd | Source coding enhancement using spectral-band replication |
Non-Patent Citations (2)
Title |
---|
BOSI M. ET AL.: "Time versus frequency resolution in a low-rate, high quality audio transform coder", IEEE ASSP WORKSHOP ON APPLICATIONS OF SIGNAL PROCESSING TO AUDIO AND ACOUSTICS, FINAL PROGRAM AND PAPER SUMMARIES, 1991, pages 0_81 - 0_82 * |
PRINCEN J. ET AL.: "Audio coding with signal adaptive filterbanks", INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING, ICASSP-95, vol. 5, 1995, pages 3071 - 3074 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9311922B2 (en) | 2004-03-01 | 2016-04-12 | Dolby Laboratories Licensing Corporation | Method, apparatus, and storage medium for decoding encoded audio channels |
US9454969B2 (en) | 2004-03-01 | 2016-09-27 | Dolby Laboratories Licensing Corporation | Multichannel audio coding |
US9520135B2 (en) | 2004-03-01 | 2016-12-13 | Dolby Laboratories Licensing Corporation | Reconstructing audio signals with multiple decorrelation techniques |
Also Published As
Publication number | Publication date |
---|---|
WO2000045378A2 (en) | 2000-08-03 |
AU2585600A (en) | 2000-08-18 |
SE9903552D0 (en) | 1999-10-01 |
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