CA3024167A1 - Adaptive audio codec system, method, apparatus and medium - Google Patents
Adaptive audio codec system, method, apparatus and medium Download PDFInfo
- Publication number
- CA3024167A1 CA3024167A1 CA3024167A CA3024167A CA3024167A1 CA 3024167 A1 CA3024167 A1 CA 3024167A1 CA 3024167 A CA3024167 A CA 3024167A CA 3024167 A CA3024167 A CA 3024167A CA 3024167 A1 CA3024167 A1 CA 3024167A1
- Authority
- CA
- Canada
- Prior art keywords
- signal
- step size
- filter
- quantized signal
- lfactor
- 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.)
- Pending
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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
- G10L19/04—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
- G10L19/26—Pre-filtering or post-filtering
- G10L19/265—Pre-filtering, e.g. high frequency emphasis prior to 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
- G10L19/02—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
-
- 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
-
- 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
- G10L19/26—Pre-filtering or post-filtering
-
- 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
- G10L2019/0001—Codebooks
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)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Applications Claiming Priority (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US15/151,200 | 2016-05-10 | ||
| US15/151,109 | 2016-05-10 | ||
| US15/151,211 US20170330575A1 (en) | 2016-05-10 | 2016-05-10 | Adaptive audio codec system, method and article |
| US15/151,220 | 2016-05-10 | ||
| US15/151,109 US10699725B2 (en) | 2016-05-10 | 2016-05-10 | Adaptive audio encoder system, method and article |
| US15/151,211 | 2016-05-10 | ||
| US15/151,200 US10770088B2 (en) | 2016-05-10 | 2016-05-10 | Adaptive audio decoder system, method and article |
| US15/151,220 US10756755B2 (en) | 2016-05-10 | 2016-05-10 | Adaptive audio codec system, method and article |
| PCT/US2017/031735 WO2017196833A1 (en) | 2016-05-10 | 2017-05-09 | Adaptive audio codec system, method, apparatus and medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA3024167A1 true CA3024167A1 (en) | 2017-11-16 |
Family
ID=58710160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA3024167A Pending CA3024167A1 (en) | 2016-05-10 | 2017-05-09 | Adaptive audio codec system, method, apparatus and medium |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP3455854B1 (https=) |
| JP (1) | JP7005036B2 (https=) |
| KR (1) | KR20190011742A (https=) |
| CN (1) | CN109416913B (https=) |
| AU (1) | AU2017262757B2 (https=) |
| CA (1) | CA3024167A1 (https=) |
| WO (1) | WO2017196833A1 (https=) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114424548B (zh) * | 2019-08-26 | 2023-08-04 | Lg电子株式会社 | 基于调色板编码的图像或视频编码 |
| US11935546B2 (en) * | 2021-08-19 | 2024-03-19 | Semiconductor Components Industries, Llc | Transmission error robust ADPCM compressor with enhanced response |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3398457B2 (ja) * | 1994-03-10 | 2003-04-21 | 沖電気工業株式会社 | 量子化スケールファクタ生成方法、逆量子化スケールファクタ生成方法、適応量子化回路、適応逆量子化回路、符号化装置及び復号化装置 |
| US5956674A (en) * | 1995-12-01 | 1999-09-21 | Digital Theater Systems, Inc. | Multi-channel predictive subband audio coder using psychoacoustic adaptive bit allocation in frequency, time and over the multiple channels |
| AU754877B2 (en) * | 1998-12-28 | 2002-11-28 | Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. | Method and devices for coding or decoding an audio signal or bit stream |
| US6493664B1 (en) * | 1999-04-05 | 2002-12-10 | Hughes Electronics Corporation | Spectral magnitude modeling and quantization in a frequency domain interpolative speech codec system |
| US6751587B2 (en) * | 2002-01-04 | 2004-06-15 | Broadcom Corporation | Efficient excitation quantization in noise feedback coding with general noise shaping |
| ATE543178T1 (de) * | 2002-09-04 | 2012-02-15 | Microsoft Corp | Entropische kodierung mittels anpassung des kodierungsmodus zwischen niveau- und lauflängenniveau-modus |
| JP3748261B2 (ja) * | 2003-06-17 | 2006-02-22 | 沖電気工業株式会社 | Ａｄｐｃｍ方式復号器 |
| WO2005057550A1 (ja) * | 2003-12-15 | 2005-06-23 | Matsushita Electric Industrial Co., Ltd. | 音声圧縮伸張装置 |
| BRPI0608270A2 (pt) * | 2005-04-01 | 2009-10-06 | Qualcomm Inc | sistemas, métodos e equipamento para filtragem anti-dispersão |
| US7342525B2 (en) * | 2005-12-23 | 2008-03-11 | Cirrus Logic, Inc. | Sample rate conversion combined with DSM |
| DE102006022346B4 (de) * | 2006-05-12 | 2008-02-28 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Informationssignalcodierung |
| DE602008005250D1 (de) * | 2008-01-04 | 2011-04-14 | Dolby Sweden Ab | Audiokodierer und -dekodierer |
| FR2938688A1 (fr) * | 2008-11-18 | 2010-05-21 | France Telecom | Codage avec mise en forme du bruit dans un codeur hierarchique |
| WO2012112357A1 (en) * | 2011-02-16 | 2012-08-23 | Dolby Laboratories Licensing Corporation | Methods and systems for generating filter coefficients and configuring filters |
-
2017
- 2017-05-09 KR KR1020187035261A patent/KR20190011742A/ko not_active Ceased
- 2017-05-09 EP EP17724255.9A patent/EP3455854B1/en active Active
- 2017-05-09 AU AU2017262757A patent/AU2017262757B2/en active Active
- 2017-05-09 CN CN201780040686.9A patent/CN109416913B/zh active Active
- 2017-05-09 WO PCT/US2017/031735 patent/WO2017196833A1/en not_active Ceased
- 2017-05-09 CA CA3024167A patent/CA3024167A1/en active Pending
- 2017-05-09 JP JP2019511820A patent/JP7005036B2/ja active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN109416913A (zh) | 2019-03-01 |
| WO2017196833A1 (en) | 2017-11-16 |
| JP2019521398A (ja) | 2019-07-25 |
| EP3455854B1 (en) | 2020-09-16 |
| CN109416913B (zh) | 2024-03-15 |
| JP7005036B2 (ja) | 2022-01-21 |
| AU2017262757B2 (en) | 2022-04-07 |
| EP3455854A1 (en) | 2019-03-20 |
| KR20190011742A (ko) | 2019-02-07 |
| AU2017262757A1 (en) | 2019-01-03 |
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