JPWO2023153228A1 - - Google Patents
Info
- Publication number
- JPWO2023153228A1 JPWO2023153228A1 JP2023580166A JP2023580166A JPWO2023153228A1 JP WO2023153228 A1 JPWO2023153228 A1 JP WO2023153228A1 JP 2023580166 A JP2023580166 A JP 2023580166A JP 2023580166 A JP2023580166 A JP 2023580166A JP WO2023153228 A1 JPWO2023153228 A1 JP WO2023153228A1
- Authority
- JP
- Japan
- 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.)
- Pending
Links
Classifications
-
- 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
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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
- G10L19/02—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
-
- 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
- G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
- G10L19/12—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] vocoders
-
- 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
- G10L19/20—Vocoders using multiple modes using sound class specific coding, hybrid encoders or object based coding
-
- 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
- G10L19/22—Mode decision, i.e. based on audio signal content versus external parameters
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computational Linguistics (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Mathematical Physics (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2022017997 | 2022-02-08 | ||
| JP2022143856 | 2022-09-09 | ||
| PCT/JP2023/002481 WO2023153228A1 (ja) | 2022-02-08 | 2023-01-26 | 符号化装置、及び、符号化方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPWO2023153228A1 true JPWO2023153228A1 (https=) | 2023-08-17 |
| JPWO2023153228A5 JPWO2023153228A5 (https=) | 2024-10-17 |
Family
ID=87564084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2023580166A Pending JPWO2023153228A1 (https=) | 2022-02-08 | 2023-01-26 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20250191596A1 (https=) |
| JP (1) | JPWO2023153228A1 (https=) |
| WO (1) | WO2023153228A1 (https=) |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8041042B2 (en) * | 2006-11-30 | 2011-10-18 | Nokia Corporation | Method, system, apparatus and computer program product for stereo coding |
| EP2144230A1 (en) * | 2008-07-11 | 2010-01-13 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Low bitrate audio encoding/decoding scheme having cascaded switches |
| US9589570B2 (en) * | 2012-09-18 | 2017-03-07 | Huawei Technologies Co., Ltd. | Audio classification based on perceptual quality for low or medium bit rates |
| JPWO2014068817A1 (ja) * | 2012-10-31 | 2016-09-08 | 株式会社ソシオネクスト | オーディオ信号符号化装置及びオーディオ信号復号装置 |
| EP2830054A1 (en) * | 2013-07-22 | 2015-01-28 | Fraunhofer Gesellschaft zur Förderung der angewandten Forschung e.V. | Audio encoder, audio decoder and related methods using two-channel processing within an intelligent gap filling framework |
| EP3067886A1 (en) * | 2015-03-09 | 2016-09-14 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audio encoder for encoding a multichannel signal and audio decoder for decoding an encoded audio signal |
| KR102230668B1 (ko) * | 2016-01-22 | 2021-03-22 | 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. | 미드/사이드 결정이 개선된 전역 ild를 갖는 mdct m/s 스테레오의 장치 및 방법 |
| RU2704733C1 (ru) * | 2016-01-22 | 2019-10-30 | Фраунхофер-Гезелльшафт Цур Фердерунг Дер Ангевандтен Форшунг Е.Ф. | Устройство и способ кодирования или декодирования многоканального сигнала с использованием параметра широкополосного выравнивания и множества параметров узкополосного выравнивания |
| FR3048808A1 (fr) * | 2016-03-10 | 2017-09-15 | Orange | Codage et decodage optimise d'informations de spatialisation pour le codage et le decodage parametrique d'un signal audio multicanal |
| CN109389984B (zh) * | 2017-08-10 | 2021-09-14 | 华为技术有限公司 | 时域立体声编解码方法和相关产品 |
| US11270710B2 (en) * | 2017-09-25 | 2022-03-08 | Panasonic Intellectual Property Corporation Of America | Encoder and encoding method |
| US10734001B2 (en) * | 2017-10-05 | 2020-08-04 | Qualcomm Incorporated | Encoding or decoding of audio signals |
| EP3985665B1 (en) * | 2018-04-05 | 2024-08-21 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus, method or computer program for estimating an inter-channel time difference |
| ES3059239T3 (en) * | 2018-07-04 | 2026-03-19 | Fraunhofer Ges Forschung | Multisignal encoder, multisignal decoder, and related methods using signal whitening or signal post processing |
-
2023
- 2023-01-26 US US18/835,764 patent/US20250191596A1/en active Pending
- 2023-01-26 JP JP2023580166A patent/JPWO2023153228A1/ja active Pending
- 2023-01-26 WO PCT/JP2023/002481 patent/WO2023153228A1/ja not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| US20250191596A1 (en) | 2025-06-12 |
| WO2023153228A1 (ja) | 2023-08-17 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20240717 |
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| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20251106 |