MY181944A - Audio decoder, audio encoder, method for providing at least four audio channel signals on the basis of an encoded representation, method for providing an encoded representation on the basis of at least four audio channel signals and computer program using a bandwidth extension - Google Patents
Audio decoder, audio encoder, method for providing at least four audio channel signals on the basis of an encoded representation, method for providing an encoded representation on the basis of at least four audio channel signals and computer program using a bandwidth extensionInfo
- Publication number
- MY181944A MY181944A MYPI2016000096A MYPI2016000096A MY181944A MY 181944 A MY181944 A MY 181944A MY PI2016000096 A MYPI2016000096 A MY PI2016000096A MY PI2016000096 A MYPI2016000096 A MY PI2016000096A MY 181944 A MY181944 A MY 181944A
- Authority
- MY
- Malaysia
- Prior art keywords
- audio
- basis
- providing
- encoded representation
- channel signals
- Prior art date
Links
- 238000000034 method Methods 0.000 title 2
- 238000004590 computer program Methods 0.000 title 1
Classifications
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- 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
-
- 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
- G10L19/0017—Lossless audio signal coding; Perfect reconstruction of coded audio signal by transmission of coding error
-
- 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
- G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
- G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading techniques
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S3/00—Systems employing more than two channels, e.g. quadraphonic
- H04S3/008—Systems employing more than two channels, e.g. quadraphonic in which the audio signals are in digital form, i.e. employing more than two discrete digital channels
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S7/00—Indicating arrangements; Control arrangements, e.g. balance control
- H04S7/30—Control circuits for electronic adaptation of the sound field
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
- H04S2400/01—Multi-channel, i.e. more than two input channels, sound reproduction with two speakers wherein the multi-channel information is substantially preserved
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
- H04S2400/03—Aspects of down-mixing multi-channel audio to configurations with lower numbers of playback channels, e.g. 7.1 -> 5.1
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S2420/00—Techniques used stereophonic systems covered by H04S but not provided for in its groups
- H04S2420/03—Application of parametric coding in stereophonic audio systems
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Human Computer Interaction (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Computational Linguistics (AREA)
- Mathematical Physics (AREA)
- Quality & Reliability (AREA)
- Stereophonic System (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Abstract
An audio decoder (500; 600; 1300; 1600; 2000) for providing at least four bandwidth-extended channel signals (520, 522, 524. 526) on the basis of an encoded representation (510; 610, 682; 1310, 1312), wherein the audio decoder is configured to provide a first downmix signal (532; 632; 1342) and a second downmix signal (534: 634; 1344) on the basis of a jointly encoded representation (510; 610; 1310) of the first downmix signal and the second downmix signal using a multi-channel decoding (530; 630; 1340); wherein the audio decoder is configured to provide at least a first audio channel signal (542; 642; 1372) and a second audio channel signal (544; 644; 1374) on the basis of the first downmix signal using a multi-channel decoding (540; 640; 1370); wherein the audio decoder is configured to provide at least a third audio channel signal (556; 656; 1382) and a fourth audio channel signal (558; 658; 1384) on the basis of the second downmix signal using a multi-channel decoding (550; 650; 1380); wherein the audio decoder is configured to perform a first joint multi-channel bandwidth extension (560; 660; 1390) on the basis of the first audio channel signal and the third audio channel signal, to obtain a first bandwidth-extended channel signal (520; 620; 1320) and a third bandwidth-extended channel signal (524; 624; 1324), wherein the multi-channel bandwidth extension uses a relationship between the first audio channel signal and the third audio channel signal; and wherein the audio decoder is configured to perform a second joint multi-channel bandwidth extension (570; 670; 1394) on the basis of the second audio channel signal and the fourth audio channel signal, to obtain a second bandwidth extended channel signal (522; 622; 1322) and a fourth bandwidth extended channel signal (526; 626; 1326).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP13177376 | 2013-07-22 | ||
| EP13189306.7A EP2830052A1 (en) | 2013-07-22 | 2013-10-18 | Audio decoder, audio encoder, method for providing at least four audio channel signals on the basis of an encoded representation, method for providing an encoded representation on the basis of at least four audio channel signals and computer program using a bandwidth extension |
| PCT/EP2014/065021 WO2015010934A1 (en) | 2013-07-22 | 2014-07-14 | Audio decoder, audio encoder, method for providing at least four audio channel signals on the basis of an encoded representation, method for providing an encoded representation on the basis of at least four audio channel signals and computer program using a bandwidth extension |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| MY181944A true MY181944A (en) | 2021-01-14 |
Family
ID=48874137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MYPI2016000096A MY181944A (en) | 2013-07-22 | 2014-07-14 | Audio decoder, audio encoder, method for providing at least four audio channel signals on the basis of an encoded representation, method for providing an encoded representation on the basis of at least four audio channel signals and computer program using a bandwidth extension |
Country Status (19)
| Country | Link |
|---|---|
| US (9) | US9953656B2 (en) |
| EP (4) | EP2830052A1 (en) |
| JP (2) | JP6346278B2 (en) |
| KR (2) | KR101823278B1 (en) |
| CN (5) | CN111128206B (en) |
| AR (2) | AR097012A1 (en) |
| AU (2) | AU2014295360B2 (en) |
| BR (2) | BR112016001141B1 (en) |
| CA (2) | CA2917770C (en) |
| ES (2) | ES2650544T3 (en) |
| MX (2) | MX357667B (en) |
| MY (1) | MY181944A (en) |
| PL (2) | PL3022735T3 (en) |
| PT (2) | PT3022735T (en) |
| RU (2) | RU2677580C2 (en) |
| SG (1) | SG11201600468SA (en) |
| TW (2) | TWI544479B (en) |
| WO (2) | WO2015010926A1 (en) |
| ZA (2) | ZA201601080B (en) |
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