CN1647020A - 实现流水方式的并行处理的mp3译码器 - Google Patents
实现流水方式的并行处理的mp3译码器 Download PDFInfo
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- CN1647020A CN1647020A CN03808024.9A CN03808024A CN1647020A CN 1647020 A CN1647020 A CN 1647020A CN 03808024 A CN03808024 A CN 03808024A CN 1647020 A CN1647020 A CN 1647020A
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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
- G10L19/04—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
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- Engineering & Computer Science (AREA)
- Computational Linguistics (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Abstract
本发明提供一种MP3译码器，该MP3译码器主要包含有一逆量化器，一立体声处理器，一IMDCT以及一子带综合滤波器。利用变更IMDCT中执行的顺序，本发明使得一IMDCT到一子带综合滤波器之间的流水方式的并行处理得以实现。
Description
PCT国内申请，说明书已公开。
Claims (1)
- PCT国内申请，权利要求书已公开。
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2003/000528 WO2005003950A1 (fr) | 2003-07-03 | 2003-07-03 | Decodeur mp3 executant un traitement parallele en pipeline |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1647020A true CN1647020A (zh) | 2005-07-27 |
| CN1301457C CN1301457C (zh) | 2007-02-21 |
Family
ID=33557722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB038080249A Expired - Lifetime CN1301457C (zh) | 2003-07-03 | 2003-07-03 | 实现流水方式的并行处理的mp3译码器 |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN1301457C (zh) |
| AU (1) | AU2003252432A1 (zh) |
| WO (1) | WO2005003950A1 (zh) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102238393A (zh) * | 2010-04-30 | 2011-11-09 | 北京中星微电子有限公司 | 一种音频码流的重同步方法及重同步装置 |
| CN114238166A (zh) * | 2021-11-23 | 2022-03-25 | 西安空间无线电技术研究所 | 一种基于流水存储结构的子带映射实现方法 |
| CN114238166B (zh) * | 2021-11-23 | 2024-06-11 | 西安空间无线电技术研究所 | 一种基于流水存储结构的子带映射实现方法 |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102208901B (zh) * | 2010-03-31 | 2014-04-23 | 安凯(广州)微电子技术有限公司 | 一种mp3解码过程中实现均衡器的方法 |
| CN102013879B (zh) * | 2010-09-10 | 2014-09-03 | 建荣集成电路科技(珠海)有限公司 | Mp3音乐均衡调节装置及方法 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6199039B1 (en) * | 1998-08-03 | 2001-03-06 | National Science Council | Synthesis subband filter in MPEG-II audio decoding |
| JP2000323993A (ja) * | 1999-05-11 | 2000-11-24 | Mitsubishi Electric Corp | Ｍｐｅｇ１オーディオレイヤｉｉｉ復号処理装置およびコンピュータをｍｐｅｇ１オーディオレイヤｉｉｉ復号処理装置として機能させるためのプログラムを記録したコンピュータ読取可能な記録媒体 |
| US20020106020A1 (en) * | 2000-02-09 | 2002-08-08 | Cheng T. C. | Fast method for the forward and inverse MDCT in audio coding |
-
2003
- 2003-07-03 CN CNB038080249A patent/CN1301457C/zh not_active Expired - Lifetime
- 2003-07-03 AU AU2003252432A patent/AU2003252432A1/en not_active Abandoned
- 2003-07-03 WO PCT/CN2003/000528 patent/WO2005003950A1/zh active Application Filing
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102238393A (zh) * | 2010-04-30 | 2011-11-09 | 北京中星微电子有限公司 | 一种音频码流的重同步方法及重同步装置 |
| CN114238166A (zh) * | 2021-11-23 | 2022-03-25 | 西安空间无线电技术研究所 | 一种基于流水存储结构的子带映射实现方法 |
| CN114238166B (zh) * | 2021-11-23 | 2024-06-11 | 西安空间无线电技术研究所 | 一种基于流水存储结构的子带映射实现方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2003252432A1 (en) | 2005-01-21 |
| WO2005003950A1 (fr) | 2005-01-13 |
| CN1301457C (zh) | 2007-02-21 |
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Granted publication date: 20070221 |