MX2018003529A - Codificador y metodo para codificar una se?al de audio con ruido de fondo reducido que utiliza codificacion predictiva lineal. - Google Patents
Codificador y metodo para codificar una se?al de audio con ruido de fondo reducido que utiliza codificacion predictiva lineal.Info
- Publication number
- MX2018003529A MX2018003529A MX2018003529A MX2018003529A MX2018003529A MX 2018003529 A MX2018003529 A MX 2018003529A MX 2018003529 A MX2018003529 A MX 2018003529A MX 2018003529 A MX2018003529 A MX 2018003529A MX 2018003529 A MX2018003529 A MX 2018003529A
- Authority
- MX
- Mexico
- Prior art keywords
- audio signal
- background noise
- encoder
- encoding
- predictive coding
- Prior art date
Links
- 230000005236 sound signal Effects 0.000 title abstract 8
- 239000003638 chemical reducing agent Substances 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
- G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients
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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
- G10L19/005—Correction of errors induced by the transmission channel, if related to the coding algorithm
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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
- G10L19/012—Comfort noise or silence 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
- 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
- G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction 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
- G10L19/04—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
- G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
- G10L19/12—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] vocoders
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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
- G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
- G10L19/12—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] vocoders
- G10L19/125—Pitch excitation, e.g. pitch synchronous innovation CELP [PSI-CELP]
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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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- 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
- G10L19/26—Pre-filtering or post-filtering
- G10L19/265—Pre-filtering, e.g. high frequency emphasis prior to encoding
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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
- G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
- G10L21/0208—Noise filtering
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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
- G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
- G10L21/0208—Noise filtering
- G10L21/0216—Noise filtering characterised by the method used for estimating noise
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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
- G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
- G10L21/0208—Noise filtering
- G10L21/0216—Noise filtering characterised by the method used for estimating noise
- G10L21/0224—Processing in the time domain
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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
- G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
- G10L21/0208—Noise filtering
- G10L21/0216—Noise filtering characterised by the method used for estimating noise
- G10L21/0232—Processing in the frequency domain
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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
- G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
- G10L21/0272—Voice signal separating
- G10L21/0308—Voice signal separating characterised by the type of parameter measurement, e.g. correlation techniques, zero crossing techniques or predictive techniques
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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
- G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
- G10L21/0316—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude
- G10L21/0364—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude for improving intelligibility
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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
- G10L25/12—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 prediction coefficients
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computational Linguistics (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Quality & Reliability (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Abstract
Se muestra un codificador para codificar una señal de audio con ruido de fondo reducido utilizando codificación predictiva lineal. El codificador comprende un estimador de ruido de fondo configurado para estimar ruido de fondo de la señal de audio, un reductor de ruido de fondo configurado para generar una señal de audio de ruido de fondo reducido al restar el ruido de fondo estimado de la señal de audio de la señal de audio, y un predictor configurado para someter la señal de audio a análisis de predicción lineal para obtener un primer conjunto de coeficientes de filtro de predicción lineal (LPC) y para someter la señal de audio de ruido de fondo reducido a análisis de predicción lineal para obtener un segundo conjunto de coeficientes de filtro de predicción lineal (LPC). Además, el codificador comprende un filtro de análisis compuesto de una cascada de filtros en el dominio del tiempo controlados por el primer conjunto obtenido de coeficientes LPC y el segundo conjunto obtenido de coeficientes LPC.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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EP15186901 | 2015-09-25 | ||
EP16175469 | 2016-06-21 | ||
PCT/EP2016/072701 WO2017050972A1 (en) | 2015-09-25 | 2016-09-23 | Encoder and method for encoding an audio signal with reduced background noise using linear predictive coding |
Publications (1)
Publication Number | Publication Date |
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MX2018003529A true MX2018003529A (es) | 2018-08-01 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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MX2018003529A MX2018003529A (es) | 2015-09-25 | 2016-09-23 | Codificador y metodo para codificar una se?al de audio con ruido de fondo reducido que utiliza codificacion predictiva lineal. |
Country Status (11)
Country | Link |
---|---|
US (1) | US10692510B2 (es) |
EP (1) | EP3353783B1 (es) |
JP (1) | JP6654237B2 (es) |
KR (1) | KR102152004B1 (es) |
CN (1) | CN108352166B (es) |
BR (1) | BR112018005910B1 (es) |
CA (1) | CA2998689C (es) |
ES (1) | ES2769061T3 (es) |
MX (1) | MX2018003529A (es) |
RU (1) | RU2712125C2 (es) |
WO (1) | WO2017050972A1 (es) |
Families Citing this family (11)
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EP3324407A1 (en) * | 2016-11-17 | 2018-05-23 | Fraunhofer Gesellschaft zur Förderung der Angewand | Apparatus and method for decomposing an audio signal using a ratio as a separation characteristic |
EP3324406A1 (en) | 2016-11-17 | 2018-05-23 | Fraunhofer Gesellschaft zur Förderung der Angewand | Apparatus and method for decomposing an audio signal using a variable threshold |
US11176954B2 (en) * | 2017-04-10 | 2021-11-16 | Nokia Technologies Oy | Encoding and decoding of multichannel or stereo audio signals |
EP3742391A1 (en) | 2018-03-29 | 2020-11-25 | Leica Microsystems CMS GmbH | Apparatus and computer-implemented method using baseline estimation and half-quadratic minimization for the deblurring of images |
US10741192B2 (en) * | 2018-05-07 | 2020-08-11 | Qualcomm Incorporated | Split-domain speech signal enhancement |
EP3671739A1 (en) * | 2018-12-21 | 2020-06-24 | FRAUNHOFER-GESELLSCHAFT zur Förderung der angewandten Forschung e.V. | Apparatus and method for source separation using an estimation and control of sound quality |
CN113287167A (zh) * | 2019-01-03 | 2021-08-20 | 杜比国际公司 | 用于混合语音合成的方法、设备及系统 |
US11195540B2 (en) * | 2019-01-28 | 2021-12-07 | Cirrus Logic, Inc. | Methods and apparatus for an adaptive blocking matrix |
CN110455530B (zh) * | 2019-09-18 | 2021-08-31 | 福州大学 | 谱峭度结合卷积神经网络的风机齿轮箱复合故障诊断方法 |
CN111986686B (zh) * | 2020-07-09 | 2023-01-03 | 厦门快商通科技股份有限公司 | 短时语音信噪比估算方法、装置、设备及存储介质 |
CN113409810B (zh) * | 2021-08-19 | 2021-10-29 | 成都启英泰伦科技有限公司 | 一种联合去混响的回声消除方法 |
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2016
- 2016-09-23 CA CA2998689A patent/CA2998689C/en active Active
- 2016-09-23 BR BR112018005910-2A patent/BR112018005910B1/pt active IP Right Grant
- 2016-09-23 MX MX2018003529A patent/MX2018003529A/es active IP Right Grant
- 2016-09-23 CN CN201680055833.5A patent/CN108352166B/zh active Active
- 2016-09-23 JP JP2018515646A patent/JP6654237B2/ja active Active
- 2016-09-23 EP EP16770500.3A patent/EP3353783B1/en active Active
- 2016-09-23 KR KR1020187011461A patent/KR102152004B1/ko active IP Right Grant
- 2016-09-23 RU RU2018115191A patent/RU2712125C2/ru active
- 2016-09-23 ES ES16770500T patent/ES2769061T3/es active Active
- 2016-09-23 WO PCT/EP2016/072701 patent/WO2017050972A1/en active Application Filing
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2018
- 2018-03-14 US US15/920,907 patent/US10692510B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
EP3353783A1 (en) | 2018-08-01 |
JP2018528480A (ja) | 2018-09-27 |
BR112018005910A2 (pt) | 2018-10-16 |
WO2017050972A1 (en) | 2017-03-30 |
RU2712125C2 (ru) | 2020-01-24 |
KR20180054823A (ko) | 2018-05-24 |
CA2998689A1 (en) | 2017-03-30 |
RU2018115191A3 (es) | 2019-10-25 |
ES2769061T3 (es) | 2020-06-24 |
RU2018115191A (ru) | 2019-10-25 |
CA2998689C (en) | 2021-10-26 |
BR112018005910B1 (pt) | 2023-10-10 |
EP3353783B1 (en) | 2019-12-11 |
JP6654237B2 (ja) | 2020-02-26 |
KR102152004B1 (ko) | 2020-10-27 |
US10692510B2 (en) | 2020-06-23 |
CN108352166B (zh) | 2022-10-28 |
CN108352166A (zh) | 2018-07-31 |
US20180204580A1 (en) | 2018-07-19 |
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