ATE464636T1 - Effiziente und skalierbare parametrische stereocodierung für audiocodierungsanwendungen mit niedriger bitrate - Google Patents
Effiziente und skalierbare parametrische stereocodierung für audiocodierungsanwendungen mit niedriger bitrateInfo
- Publication number
- ATE464636T1 ATE464636T1 AT05017007T AT05017007T ATE464636T1 AT E464636 T1 ATE464636 T1 AT E464636T1 AT 05017007 T AT05017007 T AT 05017007T AT 05017007 T AT05017007 T AT 05017007T AT E464636 T1 ATE464636 T1 AT E464636T1
- Authority
- AT
- Austria
- Prior art keywords
- stereo
- coding
- efficient
- bit rate
- low bit
- Prior art date
Links
- 238000000034 method Methods 0.000 abstract 3
- 238000000605 extraction Methods 0.000 abstract 1
- 238000012805 post-processing Methods 0.000 abstract 1
- 230000003595 spectral effect Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S5/00—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; 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
- G10L19/16—Vocoder architecture
- G10L19/18—Vocoders using multiple modes
- G10L19/24—Variable rate codecs, e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered encoding
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; 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
- G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S1/00—Two-channel systems
- H04S1/007—Two-channel systems in which the audio signals are in digital form
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S3/00—Systems employing more than two channels, e.g. quadraphonic
- H04S3/002—Non-adaptive circuits, e.g. manually adjustable or static, for enhancing the sound image or the spatial distribution
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Health & Medical Sciences (AREA)
- Computational Linguistics (AREA)
- Quality & Reliability (AREA)
- Mathematical Physics (AREA)
- Stereophonic System (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Stereo-Broadcasting Methods (AREA)
- Circuit For Audible Band Transducer (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE0102481A SE0102481D0 (sv) | 2001-07-10 | 2001-07-10 | Parametric stereo coding for low bitrate applications |
| SE0200796A SE0200796D0 (sv) | 2002-03-15 | 2002-03-15 | Parametic Stereo Coding for Low Bitrate Applications |
| SE0202159A SE0202159D0 (sv) | 2001-07-10 | 2002-07-09 | Efficientand scalable parametric stereo coding for low bitrate applications |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ATE464636T1 true ATE464636T1 (de) | 2010-04-15 |
Family
ID=27354735
Family Applications (5)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT05017011T ATE499675T1 (de) | 2001-07-10 | 2002-07-10 | Effiziente und skalierbare parametrische stereocodierung für anwendungen mit niedriger bitrate |
| AT05017013T ATE456124T1 (de) | 2001-07-10 | 2002-07-10 | Adaptive steuerung eines echo-nachlaufs für die pseudo-stereo audiosynthese. |
| AT02741611T ATE305715T1 (de) | 2001-07-10 | 2002-07-10 | Effiziente und skalierbare parametrische stereocodierung für anwendungen mit niedriger bitrate |
| AT05017007T ATE464636T1 (de) | 2001-07-10 | 2002-07-10 | Effiziente und skalierbare parametrische stereocodierung für audiocodierungsanwendungen mit niedriger bitrate |
| AT08016926T ATE443909T1 (de) | 2001-07-10 | 2002-07-10 | Effiziente und skalierbare parametrische stereocodierung für audiocodierungsanwendungen mit niedriger bitrate |
Family Applications Before (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT05017011T ATE499675T1 (de) | 2001-07-10 | 2002-07-10 | Effiziente und skalierbare parametrische stereocodierung für anwendungen mit niedriger bitrate |
| AT05017013T ATE456124T1 (de) | 2001-07-10 | 2002-07-10 | Adaptive steuerung eines echo-nachlaufs für die pseudo-stereo audiosynthese. |
| AT02741611T ATE305715T1 (de) | 2001-07-10 | 2002-07-10 | Effiziente und skalierbare parametrische stereocodierung für anwendungen mit niedriger bitrate |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT08016926T ATE443909T1 (de) | 2001-07-10 | 2002-07-10 | Effiziente und skalierbare parametrische stereocodierung für audiocodierungsanwendungen mit niedriger bitrate |
Country Status (13)
| Country | Link |
|---|---|
| US (8) | US7382886B2 (de) |
| EP (9) | EP1603117B1 (de) |
| JP (10) | JP4447317B2 (de) |
| KR (5) | KR100666813B1 (de) |
| CN (7) | CN101887724B (de) |
| AT (5) | ATE499675T1 (de) |
| DE (5) | DE60233835D1 (de) |
| DK (4) | DK3104367T3 (de) |
| ES (7) | ES2333278T3 (de) |
| HK (4) | HK1080979B (de) |
| PT (2) | PT3104367T (de) |
| SE (1) | SE0202159D0 (de) |
| WO (1) | WO2003007656A1 (de) |
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| US7644003B2 (en) * | 2001-05-04 | 2010-01-05 | Agere Systems Inc. | Cue-based audio coding/decoding |
| SE0202159D0 (sv) * | 2001-07-10 | 2002-07-09 | Coding Technologies Sweden Ab | Efficientand scalable parametric stereo coding for low bitrate applications |
| US8605911B2 (en) | 2001-07-10 | 2013-12-10 | Dolby International Ab | Efficient and scalable parametric stereo coding for low bitrate audio coding applications |
| ATE288617T1 (de) | 2001-11-29 | 2005-02-15 | Coding Tech Ab | Wiederherstellung von hochfrequenzkomponenten |
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| JP4714415B2 (ja) * | 2002-04-22 | 2011-06-29 | 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 | パラメータによるマルチチャンネルオーディオ表示 |
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| JP4751722B2 (ja) * | 2002-10-14 | 2011-08-17 | トムソン ライセンシング | オーディオシーンにおける音源のワイドネスを符号化および復号化する方法 |
| KR101049751B1 (ko) | 2003-02-11 | 2011-07-19 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | 오디오 코딩 |
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| KR101169596B1 (ko) | 2003-04-17 | 2012-07-30 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | 오디오 신호 합성 |
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