PL2311033T3 - Dostarczanie sygnału aktywującego dopasowanie czasowe i kodowanie sygnału audio z jego użyciem - Google Patents

Dostarczanie sygnału aktywującego dopasowanie czasowe i kodowanie sygnału audio z jego użyciem

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Publication number
PL2311033T3
PL2311033T3 PL09776982T PL09776982T PL2311033T3 PL 2311033 T3 PL2311033 T3 PL 2311033T3 PL 09776982 T PL09776982 T PL 09776982T PL 09776982 T PL09776982 T PL 09776982T PL 2311033 T3 PL2311033 T3 PL 2311033T3
Authority
PL
Poland
Prior art keywords
encoding
providing
time warp
therewith
audio signal
Prior art date
Application number
PL09776982T
Other languages
English (en)
Inventor
Stefan Bayer
Sascha Disch
Ralf Geiger
Guillaume Fuchs
Max Neuendorf
Gerald Schuller
Bernd Edler
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 PL2311033T3 publication Critical patent/PL2311033T3/pl

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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
    • 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
    • G10L21/04—Time compression or expansion
    • 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
    • G10L19/002—Dynamic bit allocation
    • 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
    • G10L19/022—Blocking, i.e. grouping of samples in time; Choice of analysis windows; Overlap factoring
    • 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
    • G10L19/028—Noise substitution, i.e. substituting non-tonal spectral components by noisy source
    • 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
    • G10L19/03—Spectral prediction for preventing pre-echo; Temporary noise shaping [TNS], e.g. in MPEG2 or MPEG4
    • 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
    • G10L19/26—Pre-filtering or post-filtering
    • G10L19/265—Pre-filtering, e.g. high frequency emphasis prior to encoding
    • 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
    • G10L21/04—Time compression or expansion
    • G10L21/043—Time compression or expansion by changing speed
    • 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
    • G10L25/90—Pitch determination of speech signals
    • 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
    • G10L19/022—Blocking, i.e. grouping of samples in time; Choice of analysis windows; Overlap factoring
    • G10L19/025—Detection of transients or attacks for time/frequency resolution switching
    • 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
    • G10L19/10—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a multipulse excitation
    • 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
    • G10L25/78—Detection of presence or absence of voice signals

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)
  • Quality & Reliability (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
PL09776982T 2008-07-11 2009-07-06 Dostarczanie sygnału aktywującego dopasowanie czasowe i kodowanie sygnału audio z jego użyciem PL2311033T3 (pl)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US7987308P 2008-07-11 2008-07-11
EP09776982A EP2311033B1 (en) 2008-07-11 2009-07-06 Providing a time warp activation signal and encoding an audio signal therewith
PCT/EP2009/004874 WO2010003618A2 (en) 2008-07-11 2009-07-06 Time warp activation signal provider, audio signal encoder, method for providing a time warp activation signal, method for encoding an audio signal and computer programs

Publications (1)

Publication Number Publication Date
PL2311033T3 true PL2311033T3 (pl) 2012-05-31

Family

ID=41037694

Family Applications (4)

Application Number Title Priority Date Filing Date
PL11180988T PL2410520T3 (pl) 2008-07-11 2009-07-06 Kodery sygnałów audio, sposoby kodowania sygnału audio i programy komputerowe
PL11180989T PL2410521T3 (pl) 2008-07-11 2009-07-06 Koder sygnału audio, sposób generowania sygnału audio i program komputerowy
PL11180990T PL2410522T3 (pl) 2008-07-11 2009-07-06 Koder sygnału audio, sposób kodowania sygnału audio i program komputerowy
PL09776982T PL2311033T3 (pl) 2008-07-11 2009-07-06 Dostarczanie sygnału aktywującego dopasowanie czasowe i kodowanie sygnału audio z jego użyciem

Family Applications Before (3)

Application Number Title Priority Date Filing Date
PL11180988T PL2410520T3 (pl) 2008-07-11 2009-07-06 Kodery sygnałów audio, sposoby kodowania sygnału audio i programy komputerowe
PL11180989T PL2410521T3 (pl) 2008-07-11 2009-07-06 Koder sygnału audio, sposób generowania sygnału audio i program komputerowy
PL11180990T PL2410522T3 (pl) 2008-07-11 2009-07-06 Koder sygnału audio, sposób kodowania sygnału audio i program komputerowy

Country Status (17)

Country Link
US (7) US9015041B2 (pl)
EP (5) EP2410519B1 (pl)
JP (5) JP5538382B2 (pl)
KR (5) KR101400484B1 (pl)
CN (5) CN103000178B (pl)
AR (8) AR072740A1 (pl)
AT (1) ATE539433T1 (pl)
AU (1) AU2009267433B2 (pl)
CA (5) CA2730239C (pl)
ES (5) ES2379761T3 (pl)
HK (5) HK1155551A1 (pl)
MX (1) MX2011000368A (pl)
PL (4) PL2410520T3 (pl)
PT (3) PT2410521T (pl)
RU (5) RU2536679C2 (pl)
TW (1) TWI463484B (pl)
WO (1) WO2010003618A2 (pl)

Families Citing this family (85)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7720677B2 (en) * 2005-11-03 2010-05-18 Coding Technologies Ab Time warped modified transform coding of audio signals
EP2107556A1 (en) * 2008-04-04 2009-10-07 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio transform coding using pitch correction
MY154452A (en) 2008-07-11 2015-06-15 Fraunhofer Ges Forschung An apparatus and a method for decoding an encoded audio signal
KR101400484B1 (ko) 2008-07-11 2014-05-28 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. 시간 워프 활성 신호의 제공 및 이를 이용한 오디오 신호의 인코딩
US9042560B2 (en) * 2009-12-23 2015-05-26 Nokia Corporation Sparse audio
PL2532001T3 (pl) 2010-03-10 2014-09-30 Fraunhofer Ges Forschung Dekoder sygnału audio, koder sygnału audio, sposoby i program komputerowy wykorzystujące zależne od częstotliwości próbkowania kodowanie krzywej dopasowania czasowego
JP5814340B2 (ja) 2010-04-09 2015-11-17 ドルビー・インターナショナル・アーベー Ｍｄｃｔベース複素予測ステレオ符号化
US8924222B2 (en) 2010-07-30 2014-12-30 Qualcomm Incorporated Systems, methods, apparatus, and computer-readable media for coding of harmonic signals
US9208792B2 (en) * 2010-08-17 2015-12-08 Qualcomm Incorporated Systems, methods, apparatus, and computer-readable media for noise injection
US9008811B2 (en) 2010-09-17 2015-04-14 Xiph.org Foundation Methods and systems for adaptive time-frequency resolution in digital data coding
WO2012048472A1 (en) * 2010-10-15 2012-04-19 Huawei Technologies Co., Ltd. Signal analyzer, signal analyzing method, signal synthesizer, signal synthesizing method, windower, transformer and inverse transformer
US9792925B2 (en) * 2010-11-25 2017-10-17 Nec Corporation Signal processing device, signal processing method and signal processing program
ES2627410T3 (es) * 2011-01-14 2017-07-28 Iii Holdings 12, Llc Aparato para codificar una señal de voz/sonido
AR085221A1 (es) 2011-02-14 2013-09-18 Fraunhofer Ges Forschung Aparato y metodo para codificar y decodificar una señal de audio utilizando una porcion alineada anticipada
CN103493129B (zh) * 2011-02-14 2016-08-10 弗劳恩霍夫应用研究促进协会 用于使用瞬态检测及质量结果将音频信号的部分编码的装置与方法
CA2903681C (en) 2011-02-14 2017-03-28 Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. Audio codec using noise synthesis during inactive phases
PL3239978T3 (pl) 2011-02-14 2019-07-31 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Kodowanie i dekodowanie pozycji impulsów ścieżek sygnału audio
AR085218A1 (es) 2011-02-14 2013-09-18 Fraunhofer Ges Forschung Aparato y metodo para ocultamiento de error en voz unificada con bajo retardo y codificacion de audio
EP2550653B1 (en) 2011-02-14 2014-04-02 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Information signal representation using lapped transform
TWI488176B (zh) 2011-02-14 2015-06-11 Fraunhofer Ges Forschung 音訊信號音軌脈衝位置之編碼與解碼技術
ES2529025T3 (es) 2011-02-14 2015-02-16 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Aparato y método para procesar una señal de audio decodificada en un dominio espectral
BR112013020592B1 (pt) 2011-02-14 2021-06-22 Fraunhofer-Gellschaft Zur Fôrderung Der Angewandten Forschung E. V. Codec de áudio utilizando síntese de ruído durante fases inativas
WO2012122297A1 (en) * 2011-03-07 2012-09-13 Xiph. Org. Methods and systems for avoiding partial collapse in multi-block audio coding
WO2012122299A1 (en) 2011-03-07 2012-09-13 Xiph. Org. Bit allocation and partitioning in gain-shape vector quantization for audio coding
US8838442B2 (en) 2011-03-07 2014-09-16 Xiph.org Foundation Method and system for two-step spreading for tonal artifact avoidance in audio coding
WO2012152764A1 (en) * 2011-05-09 2012-11-15 Dolby International Ab Method and encoder for processing a digital stereo audio signal
EP2728577A4 (en) * 2011-06-30 2016-07-27 Samsung Electronics Co Ltd APPARATUS AND METHOD FOR GENERATING A BANDWIDTH EXTENSION SIGNAL
CN102208188B (zh) 2011-07-13 2013-04-17 华为技术有限公司 音频信号编解码方法和设备
EP2795617B1 (en) * 2011-12-21 2016-08-10 Dolby International AB Audio encoders and methods with parallel architecture
KR20130109793A (ko) * 2012-03-28 2013-10-08 삼성전자주식회사 잡음 감쇄를 위한 오디오 신호 부호화 방법 및 장치
KR20140130248A (ko) * 2012-03-29 2014-11-07 텔레폰악티에볼라겟엘엠에릭슨(펍) 하모닉 오디오 신호의 변환 인코딩/디코딩
PL2831875T3 (pl) 2012-03-29 2016-05-31 Ericsson Telefon Ab L M Rozszerzenie pasma harmonicznego sygnału audio
EP2709106A1 (en) 2012-09-17 2014-03-19 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for generating a bandwidth extended signal from a bandwidth limited audio signal
CN105976824B (zh) 2012-12-06 2021-06-08 华为技术有限公司 信号解码的方法和设备
WO2014096236A2 (en) * 2012-12-19 2014-06-26 Dolby International Ab Signal adaptive fir/iir predictors for minimizing entropy
SG11201504810YA (en) 2012-12-21 2015-07-30 Fraunhofer Ges Forschung Generation of a comfort noise with high spectro-temporal resolution in discontinuous transmission of audio signals
AU2013366552B2 (en) 2012-12-21 2017-03-02 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Comfort noise addition for modeling background noise at low bit-rates
MY193865A (en) 2013-01-08 2022-10-29 Dolby Int Ab Model based prediction in a critically sampled filterbank
CN103971694B (zh) 2013-01-29 2016-12-28 华为技术有限公司 带宽扩展频带信号的预测方法、解码设备
PL2951814T3 (pl) 2013-01-29 2017-10-31 Fraunhofer Ges Forschung Emfaza małych częstotliwości kodowania opartego na LPC w dziedzinie częstotliwości
JP6096934B2 (ja) * 2013-01-29 2017-03-15 フラウンホーファーゲゼルシャフト ツール フォルデルング デル アンゲヴァンテン フォルシユング エー．フアー． 周波数拡張されたオーディオ信号を生成するためのデコーダ、復号化方法、符号化された信号を生成するためのエンコーダ、およびコンパクトな選択サイド情報を使用する符号化方法
PL2951818T3 (pl) * 2013-01-29 2019-05-31 Fraunhofer Ges Forschung Koncepcja wypełniania szumem
PT3121813T (pt) * 2013-01-29 2020-06-17 Fraunhofer Ges Forschung Preenchimento de ruído sem informação lateral para codificadores do tipo celp
RU2740690C2 (ru) * 2013-04-05 2021-01-19 Долби Интернешнл Аб Звуковые кодирующее устройство и декодирующее устройство
WO2014161995A1 (en) 2013-04-05 2014-10-09 Dolby International Ab Audio encoder and decoder for interleaved waveform coding
MX342965B (es) 2013-04-05 2016-10-19 Dolby Laboratories Licensing Corp Sistema y método de compansión para reducir el ruido de cuantificación usando extensión espectral avanzada.
CA2916126C (en) 2013-06-21 2019-07-09 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Time scaler, audio decoder, method and a computer program using a quality control
CA2964362C (en) 2013-06-21 2020-03-31 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Jitter buffer control, audio decoder, method and computer program
PT3011557T (pt) 2013-06-21 2017-07-25 Fraunhofer Ges Forschung Aparelho e método para desvanecimento de sinal aperfeiçoado para sistemas de codificação de áudio comutado durante a ocultação de erros
CN108364657B (zh) 2013-07-16 2020-10-30 超清编解码有限公司 处理丢失帧的方法和解码器
EP2830055A1 (en) 2013-07-22 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Context-based entropy coding of sample values of a spectral envelope
EP2830061A1 (en) 2013-07-22 2015-01-28 Fraunhofer Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for encoding and decoding an encoded audio signal using temporal noise/patch shaping
US9379830B2 (en) * 2013-08-16 2016-06-28 Arris Enterprises, Inc. Digitized broadcast signals
CN105225666B (zh) * 2014-06-25 2016-12-28 华为技术有限公司 处理丢失帧的方法和装置
EP2980798A1 (en) * 2014-07-28 2016-02-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Harmonicity-dependent controlling of a harmonic filter tool
EP2980792A1 (en) * 2014-07-28 2016-02-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for generating an enhanced signal using independent noise-filling
EP2980794A1 (en) * 2014-07-28 2016-02-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio encoder and decoder using a frequency domain processor and a time domain processor
EP2980793A1 (en) 2014-07-28 2016-02-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Encoder, decoder, system and methods for encoding and decoding
CN105451842B (zh) * 2014-07-28 2019-06-11 弗劳恩霍夫应用研究促进协会 选择第一编码演算法和第二编码演算法之一的装置与方法
EP2980795A1 (en) 2014-07-28 2016-02-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio encoding and decoding using a frequency domain processor, a time domain processor and a cross processor for initialization of the time domain processor
EP2980801A1 (en) * 2014-07-28 2016-02-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Method for estimating noise in an audio signal, noise estimator, audio encoder, audio decoder, and system for transmitting audio signals
KR102137537B1 (ko) * 2015-06-30 2020-07-27 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. 잡음을 연관시키기 위한 그리고 분석하기 위한 방법 및 장치
US9514766B1 (en) * 2015-07-08 2016-12-06 Continental Automotive Systems, Inc. Computationally efficient data rate mismatch compensation for telephony clocks
JP6705142B2 (ja) * 2015-09-17 2020-06-03 ヤマハ株式会社 音質判定装置及びプログラム
US10186276B2 (en) * 2015-09-25 2019-01-22 Qualcomm Incorporated Adaptive noise suppression for super wideband music
US20170178648A1 (en) * 2015-12-18 2017-06-22 Dolby International Ab Enhanced Block Switching and Bit Allocation for Improved Transform Audio Coding
US9711121B1 (en) * 2015-12-28 2017-07-18 Berggram Development Oy Latency enhanced note recognition method in gaming
US9640157B1 (en) * 2015-12-28 2017-05-02 Berggram Development Oy Latency enhanced note recognition method
ES2727462T3 (es) 2016-01-22 2019-10-16 Fraunhofer Ges Forschung Aparatos y procedimientos para la codificación o decodificación de una señal multicanal de audio mediante el uso de repetición de muestreo de dominio espectral
US9874624B2 (en) * 2016-02-29 2018-01-23 Nextnav, Llc Interference detection and rejection for wide area positioning systems using maximal ratio combining in the correlation domain
US10397663B2 (en) * 2016-04-08 2019-08-27 Source Digital, Inc. Synchronizing ancillary data to content including audio
CN106093453B (zh) * 2016-06-06 2019-10-22 广东溢达纺织有限公司 整经机经轴密度检测装置及方法
CN106356076B (zh) * 2016-09-09 2019-11-05 北京百度网讯科技有限公司 基于人工智能的语音活动性检测方法和装置
EP3513405B1 (en) * 2016-09-14 2023-07-19 Magic Leap, Inc. Virtual reality, augmented reality, and mixed reality systems with spatialized audio
US10242696B2 (en) 2016-10-11 2019-03-26 Cirrus Logic, Inc. Detection of acoustic impulse events in voice applications
US10475471B2 (en) * 2016-10-11 2019-11-12 Cirrus Logic, Inc. Detection of acoustic impulse events in voice applications using a neural network
US20180218572A1 (en) 2017-02-01 2018-08-02 Igt Gaming system and method for determining awards based on matching symbols
EP3382700A1 (en) * 2017-03-31 2018-10-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for post-processing an audio signal using a transient location detection
EP3382702A1 (en) * 2017-03-31 2018-10-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for determining a predetermined characteristic related to an artificial bandwidth limitation processing of an audio signal
EP3382701A1 (en) 2017-03-31 2018-10-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for post-processing an audio signal using prediction based shaping
US10431242B1 (en) * 2017-11-02 2019-10-01 Gopro, Inc. Systems and methods for identifying speech based on spectral features
EP3483879A1 (en) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Analysis/synthesis windowing function for modulated lapped transformation
JP6975928B2 (ja) * 2018-03-20 2021-12-01 パナソニックＩｐマネジメント株式会社 トリマー刃及び体毛切断装置
CN109448749B (zh) * 2018-12-19 2022-02-15 中国科学院自动化研究所 基于有监督学习听觉注意的语音提取方法、系统、装置
CN113470671B (zh) * 2021-06-28 2024-01-23 安徽大学 一种充分利用视觉与语音联系的视听语音增强方法及系统

Family Cites Families (90)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07850B2 (ja) * 1986-03-11 1995-01-11 河本製機株式会社 フイラメント糸の経糸糊付乾燥方法と経糸糊付乾燥装置
US5054075A (en) 1989-09-05 1991-10-01 Motorola, Inc. Subband decoding method and apparatus
JP3076859B2 (ja) 1992-04-20 2000-08-14 三菱電機株式会社 ディジタルオーディオ信号の信号処理装置
US5408580A (en) 1992-09-21 1995-04-18 Aware, Inc. Audio compression system employing multi-rate signal analysis
FI105001B (fi) 1995-06-30 2000-05-15 Nokia Mobile Phones Ltd Menetelmä odotusajan selvittämiseksi puhedekooderissa epäjatkuvassa lähetyksessä ja puhedekooderi sekä lähetin-vastaanotin
US5704003A (en) 1995-09-19 1997-12-30 Lucent Technologies Inc. RCELP coder
JP3707116B2 (ja) 1995-10-26 2005-10-19 ソニー株式会社 音声復号化方法及び装置
US5659622A (en) * 1995-11-13 1997-08-19 Motorola, Inc. Method and apparatus for suppressing noise in a communication system
US5848391A (en) 1996-07-11 1998-12-08 Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. Method subband of coding and decoding audio signals using variable length windows
US6134518A (en) 1997-03-04 2000-10-17 International Business Machines Corporation Digital audio signal coding using a CELP coder and a transform coder
US6131084A (en) * 1997-03-14 2000-10-10 Digital Voice Systems, Inc. Dual subframe quantization of spectral magnitudes
KR100261254B1 (ko) 1997-04-02 2000-07-01 윤종용 비트율 조절이 가능한 오디오 데이터 부호화/복호화방법 및 장치
KR100261253B1 (ko) 1997-04-02 2000-07-01 윤종용 비트율 조절이 가능한 오디오 부호화/복호화 방법및 장치
US6016111A (en) 1997-07-31 2000-01-18 Samsung Electronics Co., Ltd. Digital data coding/decoding method and apparatus
US6070137A (en) 1998-01-07 2000-05-30 Ericsson Inc. Integrated frequency-domain voice coding using an adaptive spectral enhancement filter
ATE302991T1 (de) 1998-01-22 2005-09-15 Deutsche Telekom Ag Verfahren zur signalgesteuerten schaltung zwischen verschiedenen audiokodierungssystemen
US6115689A (en) 1998-05-27 2000-09-05 Microsoft Corporation Scalable audio coder and decoder
US6453285B1 (en) * 1998-08-21 2002-09-17 Polycom, Inc. Speech activity detector for use in noise reduction system, and methods therefor
US6449590B1 (en) 1998-08-24 2002-09-10 Conexant Systems, Inc. Speech encoder using warping in long term preprocessing
US6330533B2 (en) 1998-08-24 2001-12-11 Conexant Systems, Inc. Speech encoder adaptively applying pitch preprocessing with warping of target signal
US7047185B1 (en) * 1998-09-15 2006-05-16 Skyworks Solutions, Inc. Method and apparatus for dynamically switching between speech coders of a mobile unit as a function of received signal quality
US7272556B1 (en) 1998-09-23 2007-09-18 Lucent Technologies Inc. Scalable and embedded codec for speech and audio signals
US6424938B1 (en) * 1998-11-23 2002-07-23 Telefonaktiebolaget L M Ericsson Complex signal activity detection for improved speech/noise classification of an audio signal
US6691084B2 (en) 1998-12-21 2004-02-10 Qualcomm Incorporated Multiple mode variable rate speech coding
SE9903553D0 (sv) * 1999-01-27 1999-10-01 Lars Liljeryd Enhancing percepptual performance of SBR and related coding methods by adaptive noise addition (ANA) and noise substitution limiting (NSL)
US6223151B1 (en) 1999-02-10 2001-04-24 Telefon Aktie Bolaget Lm Ericsson Method and apparatus for pre-processing speech signals prior to coding by transform-based speech coders
DE19910833C1 (de) * 1999-03-11 2000-05-31 Mayer Textilmaschf Kurzketten-Schärmaschine
EP1099215B1 (en) * 1999-05-26 2005-02-23 Koninklijke Philips Electronics N.V. Audio signal transmission system
US6581032B1 (en) 1999-09-22 2003-06-17 Conexant Systems, Inc. Bitstream protocol for transmission of encoded voice signals
US6782360B1 (en) * 1999-09-22 2004-08-24 Mindspeed Technologies, Inc. Gain quantization for a CELP speech coder
US6366880B1 (en) * 1999-11-30 2002-04-02 Motorola, Inc. Method and apparatus for suppressing acoustic background noise in a communication system by equaliztion of pre-and post-comb-filtered subband spectral energies
US6718309B1 (en) * 2000-07-26 2004-04-06 Ssi Corporation Continuously variable time scale modification of digital audio signals
JP2002149200A (ja) * 2000-08-31 2002-05-24 Matsushita Electric Ind Co Ltd 音声処理装置及び音声処理方法
US6850884B2 (en) * 2000-09-15 2005-02-01 Mindspeed Technologies, Inc. Selection of coding parameters based on spectral content of a speech signal
BR0107420A (pt) * 2000-11-03 2002-10-08 Koninkl Philips Electronics Nv Processos de codificação de um sinal de entrada e de decodificação, sinal modificado modelado, meio de armazenagem, decodificador, reprodutor de áudio, e ,aparelho para codificação de sinais
US6925435B1 (en) * 2000-11-27 2005-08-02 Mindspeed Technologies, Inc. Method and apparatus for improved noise reduction in a speech encoder
SE0004818D0 (sv) 2000-12-22 2000-12-22 Coding Technologies Sweden Ab Enhancing source coding systems by adaptive transposition
JP2004519738A (ja) * 2001-04-05 2004-07-02 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ 決定された信号型式に固有な技術を適用する信号の時間目盛修正
FI110729B (fi) 2001-04-11 2003-03-14 Nokia Corp Menetelmä pakatun audiosignaalin purkamiseksi
ATE387000T1 (de) 2001-05-10 2008-03-15 Dolby Lab Licensing Corp Verbesserung der transientenleistung bei kodierern mit niedriger bitrate durch unterdrückung des vorgeräusches
DE20108778U1 (de) 2001-05-25 2001-08-02 Mannesmann VDO AG, 60388 Frankfurt Gehäuse für ein in einem Fahrzeug verwendbares Gerät zur automatischen Ermittlung von Straßenbenutzungsgebühren
US6879955B2 (en) * 2001-06-29 2005-04-12 Microsoft Corporation Signal modification based on continuous time warping for low bit rate CELP coding
EP1278185A3 (en) 2001-07-13 2005-02-09 Alcatel Method for improving noise reduction in speech transmission
US6963842B2 (en) 2001-09-05 2005-11-08 Creative Technology Ltd. Efficient system and method for converting between different transform-domain signal representations
EP1446796A1 (en) * 2001-10-26 2004-08-18 Koninklijke Philips Electronics N.V. Tracking of sinusoidal parameters in an audio coder
CA2365203A1 (en) 2001-12-14 2003-06-14 Voiceage Corporation A signal modification method for efficient coding of speech signals
JP2003316392A (ja) 2002-04-22 2003-11-07 Mitsubishi Electric Corp オーディオ信号の復号化及び符号化装置、復号化装置並びに符号化装置
US6950634B2 (en) 2002-05-23 2005-09-27 Freescale Semiconductor, Inc. Transceiver circuit arrangement and method
US7457757B1 (en) 2002-05-30 2008-11-25 Plantronics, Inc. Intelligibility control for speech communications systems
US7447631B2 (en) * 2002-06-17 2008-11-04 Dolby Laboratories Licensing Corporation Audio coding system using spectral hole filling
TWI288915B (en) 2002-06-17 2007-10-21 Dolby Lab Licensing Corp Improved audio coding system using characteristics of a decoded signal to adapt synthesized spectral components
US7043423B2 (en) 2002-07-16 2006-05-09 Dolby Laboratories Licensing Corporation Low bit-rate audio coding systems and methods that use expanding quantizers with arithmetic coding
RU2331933C2 (ru) * 2002-10-11 2008-08-20 Нокиа Корпорейшн Способы и устройства управляемого источником широкополосного кодирования речи с переменной скоростью в битах
KR20040058855A (ko) 2002-12-27 2004-07-05 엘지전자 주식회사 음성 변조 장치 및 방법
IL165425A0 (en) * 2004-11-28 2006-01-15 Yeda Res & Dev Methods of treating disease by transplantation of developing allogeneic or xenogeneic organs or tissues
EP1604354A4 (en) * 2003-03-15 2008-04-02 Mindspeed Tech Inc VOICE INDEX CONTROLS FOR CELP LANGUAGE CODING
JP4629353B2 (ja) * 2003-04-17 2011-02-09 インベンテイオ・アクテイエンゲゼルシヤフト エスカレータまたは動く歩道のための移動手摺り駆動装置
KR100732659B1 (ko) * 2003-05-01 2007-06-27 노키아 코포레이션 가변 비트 레이트 광대역 스피치 음성 코딩시의 이득양자화를 위한 방법 및 장치
US7363221B2 (en) 2003-08-19 2008-04-22 Microsoft Corporation Method of noise reduction using instantaneous signal-to-noise ratio as the principal quantity for optimal estimation
JP3954552B2 (ja) * 2003-09-18 2007-08-08 有限会社スズキワーパー ヤーンガイドの空転防止機構付サンプル整経機
KR100640893B1 (ko) * 2004-09-07 2006-11-02 엘지전자 주식회사 음성 인식용 베이스밴드 모뎀 및 이동통신용 단말기
KR100604897B1 (ko) * 2004-09-07 2006-07-28 삼성전자주식회사 하드 디스크 드라이브 조립체, 하드 디스크 드라이브의장착 구조 및 이를 채용한 휴대폰
US7630902B2 (en) * 2004-09-17 2009-12-08 Digital Rise Technology Co., Ltd. Apparatus and methods for digital audio coding using codebook application ranges
EP1849154B1 (en) 2005-01-27 2010-12-15 Synchro Arts Limited Methods and apparatus for use in sound modification
US8155965B2 (en) 2005-03-11 2012-04-10 Qualcomm Incorporated Time warping frames inside the vocoder by modifying the residual
US8484036B2 (en) * 2005-04-01 2013-07-09 Qualcomm Incorporated Systems, methods, and apparatus for wideband speech coding
JP4550652B2 (ja) 2005-04-14 2010-09-22 株式会社東芝 音響信号処理装置、音響信号処理プログラム及び音響信号処理方法
US7885809B2 (en) * 2005-04-20 2011-02-08 Ntt Docomo, Inc. Quantization of speech and audio coding parameters using partial information on atypical subsequences
PT1875463T (pt) 2005-04-22 2019-01-24 Qualcomm Inc Sistemas, métodos e aparelho para nivelamento de fator de ganho
CN1862969B (zh) * 2005-05-11 2010-06-09 尼禄股份公司 自适应块长、常数变换音频解码方法
US20070079227A1 (en) 2005-08-04 2007-04-05 Toshiba Corporation Processor for creating document binders in a document management system
JP4450324B2 (ja) * 2005-08-15 2010-04-14 日立オートモティブシステムズ株式会社 内燃機関の始動制御装置
JP2007084597A (ja) 2005-09-20 2007-04-05 Fuji Shikiso Kk 表面処理カーボンブラック組成物およびその製造方法
US7720677B2 (en) 2005-11-03 2010-05-18 Coding Technologies Ab Time warped modified transform coding of audio signals
US7366658B2 (en) * 2005-12-09 2008-04-29 Texas Instruments Incorporated Noise pre-processor for enhanced variable rate speech codec
ES2391117T3 (es) * 2006-02-23 2012-11-21 Lg Electronics Inc. Método y aparato para procesar una señal de audio
TWI294107B (en) * 2006-04-28 2008-03-01 Univ Nat Kaohsiung 1St Univ Sc A pronunciation-scored method for the application of voice and image in the e-learning
ES2559307T3 (es) 2006-06-30 2016-02-11 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Codificador de audio y decodificador de audio que tiene una característica de deformación dinámicamente variable
US7873511B2 (en) * 2006-06-30 2011-01-18 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Audio encoder, audio decoder and audio processor having a dynamically variable warping characteristic
US8682652B2 (en) 2006-06-30 2014-03-25 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Audio encoder, audio decoder and audio processor having a dynamically variable warping characteristic
US8239190B2 (en) * 2006-08-22 2012-08-07 Qualcomm Incorporated Time-warping frames of wideband vocoder
US8036903B2 (en) 2006-10-18 2011-10-11 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Analysis filterbank, synthesis filterbank, encoder, de-coder, mixer and conferencing system
CN101025918B (zh) * 2007-01-19 2011-06-29 清华大学 一种语音/音乐双模编解码无缝切换方法
US9653088B2 (en) * 2007-06-13 2017-05-16 Qualcomm Incorporated Systems, methods, and apparatus for signal encoding using pitch-regularizing and non-pitch-regularizing coding
EP2107556A1 (en) 2008-04-04 2009-10-07 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio transform coding using pitch correction
MY154452A (en) * 2008-07-11 2015-06-15 Fraunhofer Ges Forschung An apparatus and a method for decoding an encoded audio signal
KR101400484B1 (ko) 2008-07-11 2014-05-28 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. 시간 워프 활성 신호의 제공 및 이를 이용한 오디오 신호의 인코딩
JP5297891B2 (ja) 2009-05-25 2013-09-25 京楽産業．株式会社 遊技機
US8670990B2 (en) * 2009-08-03 2014-03-11 Broadcom Corporation Dynamic time scale modification for reduced bit rate audio coding
CN102257564B (zh) * 2009-10-21 2013-07-10 松下电器产业株式会社 音频编码装置、解码装置、方法、电路及程序

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