JP2006512617A5 - - Google Patents
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- Publication number
- JP2006512617A5 JP2006512617A5 JP2004565543A JP2004565543A JP2006512617A5 JP 2006512617 A5 JP2006512617 A5 JP 2006512617A5 JP 2004565543 A JP2004565543 A JP 2004565543A JP 2004565543 A JP2004565543 A JP 2004565543A JP 2006512617 A5 JP2006512617 A5 JP 2006512617A5
- Authority
- JP
- Japan
- Prior art keywords
- scale factor
- frequency bands
- value
- band
- increase
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 claims 9
- 230000000873 masking effect Effects 0.000 claims 2
- 238000005457 optimization Methods 0.000 claims 2
- 230000005236 sound signal Effects 0.000 claims 2
- 230000003044 adaptive effect Effects 0.000 claims 1
- 238000009795 derivation Methods 0.000 claims 1
- 238000010845 search algorithm Methods 0.000 claims 1
Applications Claiming Priority (2)
| 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 |
| PCT/US2003/040173 WO2004061823A1 (en) | 2003-01-02 | 2003-12-16 | Reducing scale factor transmission cost for mpeg-2 aac using a lattice |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2006512617A JP2006512617A (ja) | 2006-04-13 |
| JP2006512617A5 true JP2006512617A5 (https=) | 2006-12-28 |
| JP4425148B2 JP4425148B2 (ja) | 2010-03-03 |
Family
ID=32681060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2004565543A Expired - Fee Related JP4425148B2 (ja) | 2003-01-02 | 2003-12-16 | 格子基ポスト処理技術を用いるｍｐｅｇ−２アドバンスドオーディオコーディング（ａａｃ）のためのスケール因子伝達コスト低減 |
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
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