MX366304B - Codificador de audio y método para codificar una señal de audio. - Google Patents

Codificador de audio y método para codificar una señal de audio.

Info

Publication number
MX366304B
MX366304B MX2017012804A MX2017012804A MX366304B MX 366304 B MX366304 B MX 366304B MX 2017012804 A MX2017012804 A MX 2017012804A MX 2017012804 A MX2017012804 A MX 2017012804A MX 366304 B MX366304 B MX 366304B
Authority
MX
Mexico
Prior art keywords
audio signal
audio
encoder
encoding
audio encoder
Prior art date
Application number
MX2017012804A
Other languages
English (en)
Other versions
MX2017012804A (es
Inventor
Backstrom Tom
Jokinen Emma
Original Assignee
Fraunhofer Ges Forschung
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fraunhofer Ges Forschung filed Critical Fraunhofer Ges Forschung
Publication of MX2017012804A publication Critical patent/MX2017012804A/es
Publication of MX366304B publication Critical patent/MX366304B/es

Links

Classifications

    • 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
    • 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
    • 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
    • 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
    • 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
    • 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
    • G10L2019/0001—Codebooks
    • G10L2019/0011—Long term prediction filters, i.e. pitch estimation
    • 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
    • G10L2019/0001—Codebooks
    • G10L2019/0016—Codebook for LPC parameters

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)
  • Spectroscopy & Molecular Physics (AREA)
  • Quality & Reliability (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

Un codificador de audio (100) para proporcionar una representación codificada (102) con base en una señal de audio (104), en donde el codificador de audio (100) se configura para obtener una información de ruido (106) que describe un ruido incluido en la señal de audio (104), y en donde el codificador de audio (100) se configura para codificar adaptativamente la señal de audio (104) en dependencia de la información de ruido (106), de tal forma que la precisión de codificación es mayor para partes de la señal de audio (104) que están menos afectadas por el ruido incluido en la señal de audio (104) que para partes de la señal de audio (104) que están más afectadas por el ruido incluido en la señal de audio (104).
MX2017012804A 2015-04-09 2016-04-06 Codificador de audio y método para codificar una señal de audio. MX366304B (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP15163055.5A EP3079151A1 (en) 2015-04-09 2015-04-09 Audio encoder and method for encoding an audio signal
PCT/EP2016/057514 WO2016162375A1 (en) 2015-04-09 2016-04-06 Audio encoder and method for encoding an audio signal

Publications (2)

Publication Number Publication Date
MX2017012804A MX2017012804A (es) 2018-01-30
MX366304B true MX366304B (es) 2019-07-04

Family

ID=52824117

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2017012804A MX366304B (es) 2015-04-09 2016-04-06 Codificador de audio y método para codificar una señal de audio.

Country Status (11)

Country Link
US (1) US10672411B2 (es)
EP (2) EP3079151A1 (es)
JP (1) JP6626123B2 (es)
KR (1) KR102099293B1 (es)
CN (1) CN107710324B (es)
BR (1) BR112017021424B1 (es)
CA (1) CA2983813C (es)
ES (1) ES2741009T3 (es)
MX (1) MX366304B (es)
RU (1) RU2707144C2 (es)
WO (1) WO2016162375A1 (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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
CN111583903B (zh) * 2020-04-28 2021-11-05 北京字节跳动网络技术有限公司 语音合成方法、声码器训练方法、装置、介质及电子设备
EP3971892A1 (en) * 2020-09-18 2022-03-23 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for combining repeated noisy signals

Family Cites Families (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4133976A (en) 1978-04-07 1979-01-09 Bell Telephone Laboratories, Incorporated Predictive speech signal coding with reduced noise effects
NL8700985A (nl) * 1987-04-27 1988-11-16 Philips Nv Systeem voor sub-band codering van een digitaal audiosignaal.
US5680508A (en) 1991-05-03 1997-10-21 Itt Corporation Enhancement of speech coding in background noise for low-rate speech coder
US5369724A (en) * 1992-01-17 1994-11-29 Massachusetts Institute Of Technology Method and apparatus for encoding, decoding and compression of audio-type data using reference coefficients located within a band of coefficients
AU675322B2 (en) 1993-04-29 1997-01-30 Unisearch Limited Use of an auditory model to improve quality or lower the bit rate of speech synthesis systems
KR100323487B1 (ko) * 1994-02-01 2002-07-08 러셀 비. 밀러 버스트여기선형예측
FR2734389B1 (fr) 1995-05-17 1997-07-18 Proust Stephane Procede d'adaptation du niveau de masquage du bruit dans un codeur de parole a analyse par synthese utilisant un filtre de ponderation perceptuelle a court terme
US5790759A (en) * 1995-09-19 1998-08-04 Lucent Technologies Inc. Perceptual noise masking measure based on synthesis filter frequency response
JP4005154B2 (ja) * 1995-10-26 2007-11-07 ソニー株式会社 音声復号化方法及び装置
US6167375A (en) * 1997-03-17 2000-12-26 Kabushiki Kaisha Toshiba Method for encoding and decoding a speech signal including background noise
US6182033B1 (en) 1998-01-09 2001-01-30 At&T Corp. Modular approach to speech enhancement with an application to speech coding
US7392180B1 (en) * 1998-01-09 2008-06-24 At&T Corp. System and method of coding sound signals using sound enhancement
US6385573B1 (en) 1998-08-24 2002-05-07 Conexant Systems, Inc. Adaptive tilt compensation for synthesized speech residual
CA2246532A1 (en) * 1998-09-04 2000-03-04 Northern Telecom Limited Perceptual audio coding
US6298322B1 (en) * 1999-05-06 2001-10-02 Eric Lindemann Encoding and synthesis of tonal audio signals using dominant sinusoids and a vector-quantized residual tonal signal
JP3315956B2 (ja) * 1999-10-01 2002-08-19 松下電器産業株式会社 音声符号化装置及び音声符号化方法
US6523003B1 (en) * 2000-03-28 2003-02-18 Tellabs Operations, Inc. Spectrally interdependent gain adjustment techniques
US7010480B2 (en) * 2000-09-15 2006-03-07 Mindspeed Technologies, Inc. Controlling a weighting filter based on the spectral content of a speech signal
US6850884B2 (en) * 2000-09-15 2005-02-01 Mindspeed Technologies, Inc. Selection of coding parameters based on spectral content of a speech signal
EP1521243A1 (en) 2003-10-01 2005-04-06 Siemens Aktiengesellschaft Speech coding method applying noise reduction by modifying the codebook gain
AU2003274864A1 (en) 2003-10-24 2005-05-11 Nokia Corpration Noise-dependent postfiltering
JP4734859B2 (ja) * 2004-06-28 2011-07-27 ソニー株式会社 信号符号化装置及び方法、並びに信号復号装置及び方法
CN101395661B (zh) * 2006-03-07 2013-02-06 艾利森电话股份有限公司 音频编码和解码的方法和设备
EP1990799A1 (en) * 2006-06-30 2008-11-12 Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V. Audio encoder, audio decoder and audio processor having a dynamically variable warping characteristic
WO2008032828A1 (en) * 2006-09-15 2008-03-20 Panasonic Corporation Audio encoding device and audio encoding method
PL2118889T3 (pl) 2007-03-05 2013-03-29 Ericsson Telefon Ab L M Sposób i sterownik do wygładzania stacjonarnego szumu tła
US20080312916A1 (en) 2007-06-15 2008-12-18 Mr. Alon Konchitsky Receiver Intelligibility Enhancement System
CN101430880A (zh) * 2007-11-07 2009-05-13 华为技术有限公司 一种背景噪声的编解码方法和装置
ATE500588T1 (de) * 2008-01-04 2011-03-15 Dolby Sweden Ab Audiokodierer und -dekodierer
GB2466671B (en) * 2009-01-06 2013-03-27 Skype Speech encoding
US8260220B2 (en) 2009-09-28 2012-09-04 Broadcom Corporation Communication device with reduced noise speech coding
RU2586841C2 (ru) * 2009-10-20 2016-06-10 Фраунхофер-Гезелльшафт цур Фёрдерунг дер ангевандтен Форшунг Е.Ф. Многорежимный аудио кодировщик и celp кодирование, адаптированное к нему
JP5265056B2 (ja) * 2011-01-19 2013-08-14 三菱電機株式会社 雑音抑圧装置
KR101699898B1 (ko) * 2011-02-14 2017-01-25 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. 스펙트럼 영역에서 디코딩된 오디오 신호를 처리하기 위한 방법 및 장치
US9117455B2 (en) 2011-07-29 2015-08-25 Dts Llc Adaptive voice intelligibility processor
US9972325B2 (en) * 2012-02-17 2018-05-15 Huawei Technologies Co., Ltd. System and method for mixed codebook excitation for speech coding
US8854481B2 (en) * 2012-05-17 2014-10-07 Honeywell International Inc. Image stabilization devices, methods, and systems
US9728200B2 (en) * 2013-01-29 2017-08-08 Qualcomm Incorporated Systems, methods, apparatus, and computer-readable media for adaptive formant sharpening in linear prediction coding
CN103413553B (zh) * 2013-08-20 2016-03-09 腾讯科技（深圳）有限公司 音频编码方法、音频解码方法、编码端、解码端和系统

Also Published As

Publication number Publication date
ES2741009T3 (es) 2020-02-07
RU2707144C2 (ru) 2019-11-22
CA2983813A1 (en) 2016-10-13
EP3281197A1 (en) 2018-02-14
EP3281197B1 (en) 2019-05-15
JP6626123B2 (ja) 2019-12-25
MX2017012804A (es) 2018-01-30
JP2018511086A (ja) 2018-04-19
US10672411B2 (en) 2020-06-02
US20180033444A1 (en) 2018-02-01
BR112017021424A2 (pt) 2018-07-03
CA2983813C (en) 2021-12-28
CN107710324B (zh) 2021-12-03
EP3079151A1 (en) 2016-10-12
RU2017135436A (ru) 2019-04-08
RU2017135436A3 (es) 2019-04-08
KR102099293B1 (ko) 2020-05-18
BR112017021424B1 (pt) 2024-01-09
CN107710324A (zh) 2018-02-16
KR20170132854A (ko) 2017-12-04
WO2016162375A1 (en) 2016-10-13

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