CN100578617C - 代码转换方法及代码转换装置 - Google Patents
代码转换方法及代码转换装置 Download PDFInfo
- Publication number
- CN100578617C CN100578617C CN200610009489A CN200610009489A CN100578617C CN 100578617 C CN100578617 C CN 100578617C CN 200610009489 A CN200610009489 A CN 200610009489A CN 200610009489 A CN200610009489 A CN 200610009489A CN 100578617 C CN100578617 C CN 100578617C
- Authority
- CN
- China
- Prior art keywords
- coding
- frame
- type
- variable rate
- alternative mode
- 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.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
- G10L19/173—Transcoding, i.e. converting between two coded representations avoiding cascaded coding-decoding
Abstract
Description
Claims (18)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/064,179 US20060190246A1 (en) | 2005-02-23 | 2005-02-23 | Transcoding method for switching between selectable mode voice encoder and an enhanced variable rate CODEC |
US11/064,179 | 2005-02-23 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1819021A CN1819021A (zh) | 2006-08-16 |
CN100578617C true CN100578617C (zh) | 2010-01-06 |
Family
ID=36913910
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN200610009489A Active CN100578617C (zh) | 2005-02-23 | 2006-02-23 | 代码转换方法及代码转换装置 |
Country Status (2)
Country | Link |
---|---|
US (1) | US20060190246A1 (zh) |
CN (1) | CN100578617C (zh) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100546758B1 (ko) * | 2003-06-30 | 2006-01-26 | 한국전자통신연구원 | 음성의 상호부호화시 전송률 결정 장치 및 방법 |
US8712766B2 (en) * | 2006-05-16 | 2014-04-29 | Motorola Mobility Llc | Method and system for coding an information signal using closed loop adaptive bit allocation |
US7461106B2 (en) | 2006-09-12 | 2008-12-02 | Motorola, Inc. | Apparatus and method for low complexity combinatorial coding of signals |
KR100822024B1 (ko) * | 2007-07-30 | 2008-04-15 | 한국과학기술연구원 | 상황인지 통신 단말기를 위한 음향신호 기반 환경인식 방법 |
KR101403340B1 (ko) * | 2007-08-02 | 2014-06-09 | 삼성전자주식회사 | 변환 부호화 방법 및 장치 |
US8576096B2 (en) * | 2007-10-11 | 2013-11-05 | Motorola Mobility Llc | Apparatus and method for low complexity combinatorial coding of signals |
US8209190B2 (en) * | 2007-10-25 | 2012-06-26 | Motorola Mobility, Inc. | Method and apparatus for generating an enhancement layer within an audio coding system |
US20090234642A1 (en) * | 2008-03-13 | 2009-09-17 | Motorola, Inc. | Method and Apparatus for Low Complexity Combinatorial Coding of Signals |
US8639519B2 (en) * | 2008-04-09 | 2014-01-28 | Motorola Mobility Llc | Method and apparatus for selective signal coding based on core encoder performance |
US8175888B2 (en) * | 2008-12-29 | 2012-05-08 | Motorola Mobility, Inc. | Enhanced layered gain factor balancing within a multiple-channel audio coding system |
US8140342B2 (en) * | 2008-12-29 | 2012-03-20 | Motorola Mobility, Inc. | Selective scaling mask computation based on peak detection |
US8200496B2 (en) * | 2008-12-29 | 2012-06-12 | Motorola Mobility, Inc. | Audio signal decoder and method for producing a scaled reconstructed audio signal |
US8219408B2 (en) * | 2008-12-29 | 2012-07-10 | Motorola Mobility, Inc. | Audio signal decoder and method for producing a scaled reconstructed audio signal |
US8428936B2 (en) * | 2010-03-05 | 2013-04-23 | Motorola Mobility Llc | Decoder for audio signal including generic audio and speech frames |
US8423355B2 (en) * | 2010-03-05 | 2013-04-16 | Motorola Mobility Llc | Encoder for audio signal including generic audio and speech frames |
CN102779518B (zh) * | 2012-07-27 | 2014-08-06 | 深圳广晟信源技术有限公司 | 用于双核编码模式的编码方法和系统 |
US9129600B2 (en) | 2012-09-26 | 2015-09-08 | Google Technology Holdings LLC | Method and apparatus for encoding an audio signal |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6947888B1 (en) * | 2000-10-17 | 2005-09-20 | Qualcomm Incorporated | Method and apparatus for high performance low bit-rate coding of unvoiced speech |
KR20050007977A (ko) * | 2003-07-12 | 2005-01-21 | 삼성전자주식회사 | 이동 통신 시스템에서의 보코더의 모드 및 전송율 제어 방법 |
US7586868B2 (en) * | 2003-07-14 | 2009-09-08 | Motorola, Inc | Method and apparatus for controlling distributed transcoders |
US7433815B2 (en) * | 2003-09-10 | 2008-10-07 | Dilithium Networks Pty Ltd. | Method and apparatus for voice transcoding between variable rate coders |
GB0326262D0 (en) * | 2003-11-11 | 2003-12-17 | Nokia Corp | Speech codecs |
US7860046B2 (en) * | 2003-12-08 | 2010-12-28 | Motorola Mobility, Inc. | Method and apparatus for providing bearer format type information in a cellular communication system |
-
2005
- 2005-02-23 US US11/064,179 patent/US20060190246A1/en not_active Abandoned
-
2006
- 2006-02-23 CN CN200610009489A patent/CN100578617C/zh active Active
Also Published As
Publication number | Publication date |
---|---|
CN1819021A (zh) | 2006-08-16 |
US20060190246A1 (en) | 2006-08-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN100578617C (zh) | 代码转换方法及代码转换装置 | |
KR100837451B1 (ko) | 향상된 품질의 음성 변환부호화를 위한 방법 및 장치 | |
JP4390803B2 (ja) | 可変ビットレート広帯域通話符号化におけるゲイン量子化方法および装置 | |
TW519616B (en) | Method and apparatus for predictively quantizing voiced speech | |
TWI407432B (zh) | 用於可縮放的語言及音頻編碼之方法、器件、處理器及機器可讀媒體 | |
DK2301022T3 (en) | DEVICE AND PROCEDURE FOR MULTI-REFERENCE LPC FILTER QUANTIZATION | |
US20050053130A1 (en) | Method and apparatus for voice transcoding between variable rate coders | |
JP2006525533A5 (zh) | ||
CN101180676A (zh) | 用于谱包络表示的向量量化的方法和设备 | |
CN1954366A (zh) | 用于电信多速率语音编码器中的语音速率转换的方法和装置 | |
CN1470052A (zh) | 宽带语音编解码器中的高频增强层编码 | |
CN100527225C (zh) | 基于celp的语音代码之间的代码转换方案 | |
JP3490325B2 (ja) | 音声信号符号化方法、復号方法およびその符号化器、復号器 | |
JP2002073097A (ja) | Celp型音声符号化装置とcelp型音声復号化装置及び音声符号化方法と音声復号化方法 | |
Ghenania et al. | Low-cost smart transcoding algorithm between ITU-T G. 729 (8 kbit/s) and 3GPP NB-AMR (12.2 kbit/s) | |
JP2005062410A (ja) | 音声信号の符号化方法 | |
Girin | Long-term quantization of speech LSF parameters | |
Huong et al. | A new vocoder based on AMR 7.4 kbit/s mode in speaker dependent coding system | |
KR100296409B1 (ko) | 다중펄스여기음성부호화방법 | |
Byun et al. | Real-time implementation of AMR and AMR-WB using the fixed-point DSP for WCDMA systems | |
Tsai et al. | Efficient coding translation of GSM and G. 729 speech coders across mobile and IP networks | |
JPH09120300A (ja) | ベクトル量子化装置 | |
Deyuan | An 8 kb/s low complexity ACELP speech codec | |
Sadek et al. | A new CELP speech coder for wireless communication | |
EP1212750A1 (en) | Multimode vselp speech coder |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20160803 Address after: American California Patentee after: Intel Corporation Address before: The Cayman Islands, British West Indies Patentee before: Ky Wire Electric Co., Ltd. |
|
TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20200410 Address after: California, USA Patentee after: Apple Inc. Address before: California, USA Patentee before: INTEL Corp. |