MX2016016564A - Aparato y metodo de codificacion de audio. - Google Patents
Aparato y metodo de codificacion de audio.Info
- Publication number
- MX2016016564A MX2016016564A MX2016016564A MX2016016564A MX2016016564A MX 2016016564 A MX2016016564 A MX 2016016564A MX 2016016564 A MX2016016564 A MX 2016016564A MX 2016016564 A MX2016016564 A MX 2016016564A MX 2016016564 A MX2016016564 A MX 2016016564A
- Authority
- MX
- Mexico
- Prior art keywords
- coding method
- coding
- sparseness
- distribution
- audio
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 10
- 238000001228 spectrum Methods 0.000 abstract 2
- 238000013139 quantization Methods 0.000 abstract 1
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
- G10L19/18—Vocoders using multiple modes
- G10L19/22—Mode decision, i.e. based on audio signal content versus external parameters
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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
- G10L19/02—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
- G10L19/0204—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 using subband decomposition
-
- 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
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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
- G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients
-
- 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
- G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients
- G10L19/07—Line spectrum pair [LSP] vocoders
-
- 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
- G10L19/18—Vocoders using multiple modes
- G10L19/20—Vocoders using multiple modes using sound class specific coding, hybrid encoders or object based coding
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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
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
- G10L25/18—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being spectral information of each sub-band
-
- 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
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
- G10L25/21—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being power information
-
- 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
-
- 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
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Computational Linguistics (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Human Computer Interaction (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Stereophonic System (AREA)
- Auxiliary Devices For Music (AREA)
Abstract
Se proporcionan un método de codificación de audio y un aparato. El método incluye: determinar la dispersión de distribución, en espectros, de energía de N cuadros de audio de entrada (101), en donde los N cuadros de audio incluyen un cuadro de audio actual, y N es un número entero positivo; y determinar de acuerdo a la dispersión de distribución, en los espectros, de la energía de los N cuadros de audio, si se usa un primer método de codificación o un segundo método de codificación para codificar el cuadro de audio actual (102), donde el primer método de codificación es un método de codificación que se basa en la cuantificación del coeficiente de transformada y la transformada de tiempo-frecuencia y que no se basa en la predicción lineal, y el segundo método de codificación es un método de codificación basado en predicción lineal. De acuerdo al método, cuando se codifica un cuadro de audio, se considera la dispersión de distribución, en un espectro, de la energía del cuadro de audio, lo que puede reducir la complejidad de codificación y asegurar que la codificación sea de relativamente alta exactitud.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201410288983.3A CN105336338B (zh) | 2014-06-24 | 2014-06-24 | 音频编码方法和装置 |
PCT/CN2015/082076 WO2015196968A1 (zh) | 2014-06-24 | 2015-06-23 | 音频编码方法和装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
MX2016016564A true MX2016016564A (es) | 2017-04-25 |
MX361248B MX361248B (es) | 2018-11-30 |
Family
ID=54936800
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX2016016564A MX361248B (es) | 2014-06-24 | 2015-06-23 | Aparato y método de codificación de audio. |
Country Status (17)
Country | Link |
---|---|
US (3) | US9761239B2 (es) |
EP (2) | EP3144933B1 (es) |
JP (1) | JP6426211B2 (es) |
KR (2) | KR101960152B1 (es) |
CN (3) | CN107424622B (es) |
AU (2) | AU2015281506B2 (es) |
BR (1) | BR112016029380B1 (es) |
CA (1) | CA2951593C (es) |
DK (1) | DK3460794T3 (es) |
ES (2) | ES2883685T3 (es) |
HK (1) | HK1220542A1 (es) |
MX (1) | MX361248B (es) |
MY (1) | MY173129A (es) |
PT (1) | PT3144933T (es) |
RU (1) | RU2667380C2 (es) |
SG (1) | SG11201610302TA (es) |
WO (1) | WO2015196968A1 (es) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107424622B (zh) * | 2014-06-24 | 2020-12-25 | 华为技术有限公司 | 音频编码方法和装置 |
CN111739543B (zh) * | 2020-05-25 | 2023-05-23 | 杭州涂鸦信息技术有限公司 | 音频编码方法的调试方法及其相关装置 |
CN113948085B (zh) * | 2021-12-22 | 2022-03-25 | 中国科学院自动化研究所 | 语音识别方法、***、电子设备和存储介质 |
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2014
- 2014-06-24 CN CN201710188023.3A patent/CN107424622B/zh active Active
- 2014-06-24 CN CN201710188022.9A patent/CN107424621B/zh active Active
- 2014-06-24 CN CN201410288983.3A patent/CN105336338B/zh active Active
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2015
- 2015-06-23 JP JP2016574980A patent/JP6426211B2/ja active Active
- 2015-06-23 RU RU2017101813A patent/RU2667380C2/ru active
- 2015-06-23 EP EP15811228.4A patent/EP3144933B1/en active Active
- 2015-06-23 ES ES18167140T patent/ES2883685T3/es active Active
- 2015-06-23 KR KR1020167036467A patent/KR101960152B1/ko active IP Right Grant
- 2015-06-23 CA CA2951593A patent/CA2951593C/en active Active
- 2015-06-23 PT PT15811228T patent/PT3144933T/pt unknown
- 2015-06-23 ES ES15811228T patent/ES2703199T3/es active Active
- 2015-06-23 EP EP18167140.5A patent/EP3460794B1/en active Active
- 2015-06-23 MX MX2016016564A patent/MX361248B/es active IP Right Grant
- 2015-06-23 WO PCT/CN2015/082076 patent/WO2015196968A1/zh active Application Filing
- 2015-06-23 KR KR1020197007222A patent/KR102051928B1/ko active IP Right Grant
- 2015-06-23 SG SG11201610302TA patent/SG11201610302TA/en unknown
- 2015-06-23 MY MYPI2016704527A patent/MY173129A/en unknown
- 2015-06-23 DK DK18167140.5T patent/DK3460794T3/da active
- 2015-06-23 AU AU2015281506A patent/AU2015281506B2/en active Active
- 2015-06-23 BR BR112016029380-0A patent/BR112016029380B1/pt active IP Right Grant
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2016
- 2016-07-15 HK HK16108373.2A patent/HK1220542A1/zh unknown
- 2016-12-21 US US15/386,246 patent/US9761239B2/en active Active
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2017
- 2017-08-21 US US15/682,097 patent/US10347267B2/en active Active
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2018
- 2018-05-22 AU AU2018203619A patent/AU2018203619B2/en active Active
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2019
- 2019-06-13 US US16/439,954 patent/US11074922B2/en active Active
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