TWI335145B - Reducing scale factor transmission cost for mpeg-2 advanced audio coding (aac) using a lattice based post processing technique - Google Patents
Reducing scale factor transmission cost for mpeg-2 advanced audio coding (aac) using a lattice based post processing technique Download PDFInfo
- Publication number
- TWI335145B TWI335145B TW092135218A TW92135218A TWI335145B TW I335145 B TWI335145 B TW I335145B TW 092135218 A TW092135218 A TW 092135218A TW 92135218 A TW92135218 A TW 92135218A TW I335145 B TWI335145 B TW I335145B
- Authority
- TW
- Taiwan
- Prior art keywords
- adjustment factor
- band
- adjustment
- value
- bands
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 44
- 230000005540 biological transmission Effects 0.000 title description 14
- 238000012805 post-processing Methods 0.000 title 1
- 230000009467 reduction Effects 0.000 claims abstract description 5
- 230000005236 sound signal Effects 0.000 claims abstract description 5
- 238000004458 analytical method Methods 0.000 claims description 13
- 238000005457 optimization Methods 0.000 claims description 13
- 238000010845 search algorithm Methods 0.000 claims description 11
- 230000006870 function Effects 0.000 claims description 9
- 238000004364 calculation method Methods 0.000 claims description 7
- 230000003044 adaptive effect Effects 0.000 claims description 3
- 238000007781 pre-processing Methods 0.000 claims description 3
- 230000011218 segmentation Effects 0.000 claims 1
- 210000000952 spleen Anatomy 0.000 claims 1
- 230000001186 cumulative effect Effects 0.000 description 8
- 238000013139 quantization Methods 0.000 description 8
- 238000004422 calculation algorithm Methods 0.000 description 6
- 238000001228 spectrum Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000009795 derivation Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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
- G10L19/02—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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Computational Linguistics (AREA)
- Multimedia (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Enzymes And Modification Thereof (AREA)
- Compression Of Band Width Or Redundancy In Fax (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Peptides Or Proteins (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/336,637 US7272566B2 (en) | 2003-01-02 | 2003-01-02 | Reducing scale factor transmission cost for MPEG-2 advanced audio coding (AAC) using a lattice based post processing technique |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW200419929A TW200419929A (en) | 2004-10-01 |
| TWI335145B true TWI335145B (en) | 2010-12-21 |
Family
ID=32681060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW092135218A TWI335145B (en) | 2003-01-02 | 2003-12-12 | Reducing scale factor transmission cost for mpeg-2 advanced audio coding (aac) using a lattice based post processing technique |
Country Status (17)
| Country | Link |
|---|---|
| US (1) | US7272566B2 (https=) |
| EP (1) | EP1581928B1 (https=) |
| JP (1) | JP4425148B2 (https=) |
| KR (1) | KR101045520B1 (https=) |
| CN (1) | CN1735925B (https=) |
| AT (1) | ATE412960T1 (https=) |
| AU (1) | AU2003303495B2 (https=) |
| CA (1) | CA2507535C (https=) |
| DE (1) | DE60324465D1 (https=) |
| DK (1) | DK1581928T3 (https=) |
| ES (1) | ES2312852T3 (https=) |
| IL (1) | IL168636A (https=) |
| MX (1) | MXPA05007183A (https=) |
| MY (1) | MY138588A (https=) |
| PL (1) | PL208346B1 (https=) |
| TW (1) | TWI335145B (https=) |
| WO (1) | WO2004061823A1 (https=) |
Families Citing this family (35)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005292702A (ja) * | 2004-04-05 | 2005-10-20 | Kddi Corp | オーディオフレームに対するフェードイン／フェードアウト処理装置及びプログラム |
| US8543390B2 (en) | 2004-10-26 | 2013-09-24 | Qnx Software Systems Limited | Multi-channel periodic signal enhancement system |
| US7716046B2 (en) * | 2004-10-26 | 2010-05-11 | Qnx Software Systems (Wavemakers), Inc. | Advanced periodic signal enhancement |
| US8306821B2 (en) | 2004-10-26 | 2012-11-06 | Qnx Software Systems Limited | Sub-band periodic signal enhancement system |
| US8170879B2 (en) * | 2004-10-26 | 2012-05-01 | Qnx Software Systems Limited | Periodic signal enhancement system |
| US7610196B2 (en) * | 2004-10-26 | 2009-10-27 | Qnx Software Systems (Wavemakers), Inc. | Periodic signal enhancement system |
| US7949520B2 (en) * | 2004-10-26 | 2011-05-24 | QNX Software Sytems Co. | Adaptive filter pitch extraction |
| US7680652B2 (en) * | 2004-10-26 | 2010-03-16 | Qnx Software Systems (Wavemakers), Inc. | Periodic signal enhancement system |
| KR100707173B1 (ko) * | 2004-12-21 | 2007-04-13 | 삼성전자주식회사 | 저비트율 부호화/복호화방법 및 장치 |
| US7590523B2 (en) * | 2006-03-20 | 2009-09-15 | Mindspeed Technologies, Inc. | Speech post-processing using MDCT coefficients |
| PL4481731T3 (pl) * | 2006-07-04 | 2025-12-01 | Dolby International Ab | Układ filtra zawierający konwerter filtra i kompresor filtra i sposób działania układu filtra |
| US8032371B2 (en) * | 2006-07-28 | 2011-10-04 | Apple Inc. | Determining scale factor values in encoding audio data with AAC |
| US8010370B2 (en) * | 2006-07-28 | 2011-08-30 | Apple Inc. | Bitrate control for perceptual coding |
| CN101308659B (zh) * | 2007-05-16 | 2011-11-30 | 中兴通讯股份有限公司 | 一种基于先进音频编码器的心理声学模型的处理方法 |
| US8788264B2 (en) * | 2007-06-27 | 2014-07-22 | Nec Corporation | Audio encoding method, audio decoding method, audio encoding device, audio decoding device, program, and audio encoding/decoding system |
| EP2186087B1 (en) * | 2007-08-27 | 2011-11-30 | Telefonaktiebolaget L M Ericsson (PUBL) | Improved transform coding of speech and audio signals |
| US8850154B2 (en) | 2007-09-11 | 2014-09-30 | 2236008 Ontario Inc. | Processing system having memory partitioning |
| US8904400B2 (en) | 2007-09-11 | 2014-12-02 | 2236008 Ontario Inc. | Processing system having a partitioning component for resource partitioning |
| US8694310B2 (en) | 2007-09-17 | 2014-04-08 | Qnx Software Systems Limited | Remote control server protocol system |
| CN101854175B (zh) * | 2007-10-12 | 2013-04-17 | 联咏科技股份有限公司 | 可降低信号功率频谱密度的编码方法 |
| GB2454190A (en) * | 2007-10-30 | 2009-05-06 | Cambridge Silicon Radio Ltd | Minimising a cost function in encoding data using spectral partitioning |
| US8209514B2 (en) | 2008-02-04 | 2012-06-26 | Qnx Software Systems Limited | Media processing system having resource partitioning |
| EP2274833B1 (en) * | 2008-04-16 | 2016-08-10 | Huawei Technologies Co., Ltd. | Vector quantisation method |
| US8290782B2 (en) * | 2008-07-24 | 2012-10-16 | Dts, Inc. | Compression of audio scale-factors by two-dimensional transformation |
| JP5304504B2 (ja) * | 2009-07-17 | 2013-10-02 | ソニー株式会社 | 信号符号化装置、信号復号装置、信号処理システム、これらにおける処理方法およびプログラム |
| EP2346031B1 (en) * | 2009-11-26 | 2015-09-30 | BlackBerry Limited | Rate-distortion optimization for advanced audio coding |
| US8380524B2 (en) * | 2009-11-26 | 2013-02-19 | Research In Motion Limited | Rate-distortion optimization for advanced audio coding |
| MX2013013261A (es) * | 2011-05-13 | 2014-02-20 | Samsung Electronics Co Ltd | Asignacion de bits, codificacion y decodificacion de audio. |
| US9293146B2 (en) * | 2012-09-04 | 2016-03-22 | Apple Inc. | Intensity stereo coding in advanced audio coding |
| US20140344159A1 (en) * | 2013-05-20 | 2014-11-20 | Dell Products, Lp | License Key Generation |
| EP2830058A1 (en) | 2013-07-22 | 2015-01-28 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Frequency-domain audio coding supporting transform length switching |
| TWI557726B (zh) * | 2013-08-29 | 2016-11-11 | 杜比國際公司 | 用於決定音頻信號的高頻帶信號的主比例因子頻帶表之系統和方法 |
| US10354668B2 (en) | 2017-03-22 | 2019-07-16 | Immersion Networks, Inc. | System and method for processing audio data |
| CN110426569B (zh) * | 2019-07-12 | 2021-09-21 | 国网上海市电力公司 | 一种变压器声信号降噪处理方法 |
| US20220156982A1 (en) * | 2020-11-19 | 2022-05-19 | Nvidia Corporation | Calculating data compression parameters |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| US5845249A (en) * | 1996-05-03 | 1998-12-01 | Lsi Logic Corporation | Microarchitecture of audio core for an MPEG-2 and AC-3 decoder |
| US6430533B1 (en) * | 1996-05-03 | 2002-08-06 | Lsi Logic Corporation | Audio decoder core MPEG-1/MPEG-2/AC-3 functional algorithm partitioning and implementation |
| US6226616B1 (en) * | 1999-06-21 | 2001-05-01 | Digital Theater Systems, Inc. | Sound quality of established low bit-rate audio coding systems without loss of decoder compatibility |
| FR2822122B1 (fr) * | 2001-03-14 | 2003-05-23 | Nacam | Assemblage d'un etrier de colonne de direction avec un pignon de direction d'un vehicule automobile |
| US6934677B2 (en) * | 2001-12-14 | 2005-08-23 | Microsoft Corporation | Quantization matrices based on critical band pattern information for digital audio wherein quantization bands differ from critical bands |
| US7027982B2 (en) * | 2001-12-14 | 2006-04-11 | Microsoft Corporation | Quality and rate control strategy for digital audio |
-
2003
- 2003-01-02 US US10/336,637 patent/US7272566B2/en not_active Expired - Fee Related
- 2003-12-12 TW TW092135218A patent/TWI335145B/zh not_active IP Right Cessation
- 2003-12-16 DE DE60324465T patent/DE60324465D1/de not_active Expired - Lifetime
- 2003-12-16 WO PCT/US2003/040173 patent/WO2004061823A1/en not_active Ceased
- 2003-12-16 KR KR1020057012534A patent/KR101045520B1/ko not_active Expired - Fee Related
- 2003-12-16 EP EP03808458A patent/EP1581928B1/en not_active Expired - Lifetime
- 2003-12-16 DK DK03808458T patent/DK1581928T3/da active
- 2003-12-16 CN CN2003801081720A patent/CN1735925B/zh not_active Expired - Fee Related
- 2003-12-16 ES ES03808458T patent/ES2312852T3/es not_active Expired - Lifetime
- 2003-12-16 JP JP2004565543A patent/JP4425148B2/ja not_active Expired - Fee Related
- 2003-12-16 AT AT03808458T patent/ATE412960T1/de active
- 2003-12-16 MX MXPA05007183A patent/MXPA05007183A/es active IP Right Grant
- 2003-12-16 CA CA2507535A patent/CA2507535C/en not_active Expired - Fee Related
- 2003-12-16 PL PL377709A patent/PL208346B1/pl unknown
- 2003-12-16 AU AU2003303495A patent/AU2003303495B2/en not_active Ceased
- 2003-12-31 MY MYPI20035050A patent/MY138588A/en unknown
-
2005
- 2005-05-17 IL IL168636A patent/IL168636A/en active IP Right Grant
Also Published As
| Publication number | Publication date |
|---|---|
| AU2003303495A1 (en) | 2004-07-29 |
| JP2006512617A (ja) | 2006-04-13 |
| ES2312852T3 (es) | 2009-03-01 |
| KR101045520B1 (ko) | 2011-06-30 |
| EP1581928A1 (en) | 2005-10-05 |
| ATE412960T1 (de) | 2008-11-15 |
| MXPA05007183A (es) | 2005-09-12 |
| CN1735925B (zh) | 2010-04-28 |
| CA2507535A1 (en) | 2004-07-22 |
| CA2507535C (en) | 2013-02-12 |
| CN1735925A (zh) | 2006-02-15 |
| DE60324465D1 (de) | 2008-12-11 |
| JP4425148B2 (ja) | 2010-03-03 |
| EP1581928B1 (en) | 2008-10-29 |
| US7272566B2 (en) | 2007-09-18 |
| PL208346B1 (pl) | 2011-04-29 |
| PL377709A1 (pl) | 2006-02-06 |
| WO2004061823A1 (en) | 2004-07-22 |
| KR20050089870A (ko) | 2005-09-08 |
| AU2003303495B2 (en) | 2009-02-19 |
| DK1581928T3 (da) | 2009-01-19 |
| US20040131204A1 (en) | 2004-07-08 |
| TW200419929A (en) | 2004-10-01 |
| IL168636A (en) | 2011-01-31 |
| HK1079327A1 (en) | 2006-03-31 |
| MY138588A (en) | 2009-07-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI335145B (en) | Reducing scale factor transmission cost for mpeg-2 advanced audio coding (aac) using a lattice based post processing technique | |
| US7895045B2 (en) | Bitrate constrained variable bitrate audio encoding | |
| US7383180B2 (en) | Constant bitrate media encoding techniques | |
| KR101343267B1 (ko) | 주파수 세그먼트화를 이용한 오디오 코딩 및 디코딩을 위한 방법 및 장치 | |
| KR101278805B1 (ko) | 엔트로피 코딩 방법 및 엔트로피 디코딩 방법 | |
| CN109313908B (zh) | 用于对音频信号进行编码的音频编码器以及方法 | |
| JP4570250B2 (ja) | 信号の量子化変換係数をエントロピーエンコードするシステムと方法 | |
| US8032371B2 (en) | Determining scale factor values in encoding audio data with AAC | |
| JP5172965B2 (ja) | 知覚モデルの適応的調整 | |
| US8010370B2 (en) | Bitrate control for perceptual coding | |
| US20120263312A1 (en) | Rate controller, rate control method, and rate control program | |
| JP3813025B2 (ja) | デジタル音響信号符号化装置、デジタル音響信号符号化方法及びデジタル音響信号符号化プログラムを記録した媒体 | |
| CN105340010A (zh) | 用于通过应用分布量化和编码分裂音频信号包络的音频信号包络编码、处理和解码的装置和方法 | |
| Melkote et al. | Trellis-based approaches to rate-distortion optimized audio encoding | |
| JP2008129250A (ja) | Ａａｃのためのウィンドウ切り替え方法およびｍ／ｓ符号化の帯域決定方法 | |
| Fung et al. | A fast bit allocation algorithm for MPEG audio encoder | |
| HK1079327B (en) | Reducing scale factor transmission cost for mpeg-2 aac using a lattice | |
| JPH06291679A (ja) | オーディオ信号のためのしきい値制御量子化決定法 | |
| TW200408202A (en) | Method to rapidly distribute audio bits |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM4A | Annulment or lapse of patent due to non-payment of fees |