MX2015010478A - Sistema y metodo de compansion para reducir el ruido de cuantificacion usando extension espectral avanzada. - Google Patents

Sistema y metodo de compansion para reducir el ruido de cuantificacion usando extension espectral avanzada.

Info

Publication number
MX2015010478A
MX2015010478A MX2015010478A MX2015010478A MX2015010478A MX 2015010478 A MX2015010478 A MX 2015010478A MX 2015010478 A MX2015010478 A MX 2015010478A MX 2015010478 A MX2015010478 A MX 2015010478A MX 2015010478 A MX2015010478 A MX 2015010478A
Authority
MX
Mexico
Prior art keywords
audio signal
segments
frequency domain
initial audio
quantization noise
Prior art date
Application number
MX2015010478A
Other languages
English (en)
Other versions
MX342965B (es
Inventor
Per Henrik Hedelin
Michael Schug
Arijit Biswas
Vinay Melkote
Original Assignee
Dolby Lab Licensing Corp
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 Dolby Lab Licensing Corp filed Critical Dolby Lab Licensing Corp
Publication of MX2015010478A publication Critical patent/MX2015010478A/es
Publication of MX342965B publication Critical patent/MX342965B/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
    • 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
    • G10L21/0324—Details of processing therefor
    • G10L21/034—Automatic adjustment
    • 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
    • G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
    • 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
    • G10L19/0208—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
    • G10L19/02—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
    • 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
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
    • 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
    • G10L25/45—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of analysis window
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H03G7/007—Volume compression or expansion in amplifiers of digital or coded signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Quality & Reliability (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mathematical Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Liquid Crystal Substances (AREA)
  • Stereophonic System (AREA)

Abstract

Las modalidades se refieren a un método y sistema de compansión para reducir el ruido de codificación en un códec de audio. Un proceso de compresión reduce un intervalo dinámico original de una señal de audio inicial a través de un proceso de compresión que divide la señal de audio inicial en múltiples segmentos usando una forma de ventana definida, calcula una ganancia de banda ancha en el dominio de frecuencia usando un promedio no basado en energía de muestras de dominio de frecuencia de la señal de audio inicial, y aplica valores de ganancia individuales para ampliar segmentos de intensidad relativamente baja y atenuar segmentos de intensidad relativamente alta. La señal de audio comprimida se extiende luego nuevamente hasta sustancialmente el intervalo dinámico original que aplica valores de ganancia inversos para ampliar segmentos de intensidad relativamente alta y atenuar segmentos de intensidad relativamente baja. Una batería de filtros QMF se usa para analizar la señal de audio inicial para obtener una representación de dominio de frecuencia.
MX2015010478A 2013-04-05 2014-04-01 Sistema y método de compansión para reducir el ruido de cuantificación usando extensión espectral avanzada. MX342965B (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201361809028P 2013-04-05 2013-04-05
US201361877167P 2013-09-12 2013-09-12
PCT/US2014/032578 WO2014165543A1 (en) 2013-04-05 2014-04-01 Companding apparatus and method to reduce quantization noise using advanced spectral extension

Publications (2)

Publication Number Publication Date
MX2015010478A true MX2015010478A (es) 2015-12-16
MX342965B MX342965B (es) 2016-10-19

Family

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MX2015010478A MX342965B (es) 2013-04-05 2014-04-01 Sistema y método de compansión para reducir el ruido de cuantificación usando extensión espectral avanzada.

Country Status (24)

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US (6) US9947335B2 (es)
EP (3) EP3564953B1 (es)
JP (7) JP6026678B2 (es)
KR (7) KR102081043B1 (es)
CN (8) CN104995680B (es)
AP (1) AP2015008800A0 (es)
AU (1) AU2014248232B2 (es)
BR (2) BR112015019176B1 (es)
CA (1) CA2900724C (es)
CL (1) CL2015002278A1 (es)
DK (1) DK2981963T3 (es)
EA (1) EA028755B9 (es)
ES (1) ES2617314T3 (es)
HK (4) HK1257807A1 (es)
HU (1) HUE031966T2 (es)
IL (8) IL300496A (es)
ME (1) ME02623B (es)
MX (1) MX342965B (es)
MY (2) MY173488A (es)
PL (1) PL2981963T3 (es)
RU (2) RU2600527C1 (es)
SG (1) SG11201506134XA (es)
WO (1) WO2014165543A1 (es)
ZA (1) ZA201600393B (es)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104995680B (zh) 2013-04-05 2018-04-03 杜比实验室特许公司 使用高级频谱延拓降低量化噪声的压扩装置和方法
US9584911B2 (en) * 2015-03-27 2017-02-28 Cirrus Logic, Inc. Multichip dynamic range enhancement (DRE) audio processing methods and apparatuses
US10861475B2 (en) * 2015-11-10 2020-12-08 Dolby International Ab Signal-dependent companding system and method to reduce quantization noise
US10395664B2 (en) 2016-01-26 2019-08-27 Dolby Laboratories Licensing Corporation Adaptive Quantization
BR112017024480A2 (pt) * 2016-02-17 2018-07-24 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E. V. pós-processador, pré-processador, codificador de áudio, decodificador de áudio e métodos relacionados para aprimoramento do processamento transiente
US9934788B2 (en) * 2016-08-01 2018-04-03 Bose Corporation Reducing codec noise in acoustic devices
EP3651365A4 (en) * 2017-07-03 2021-03-31 Pioneer Corporation SIGNAL PROCESSING DEVICE, CONTROL PROCESS, PROGRAM, AND INFORMATION SUPPORT
RU2691122C1 (ru) * 2018-06-13 2019-06-11 Ордена трудового Красного Знамени федеральное государственное бюджетное образовательное учреждение высшего образования "Московский технический университет связи и информатики" (МТУСИ) Способ и устройство компандирования звуковых вещательных сигналов
JP7447085B2 (ja) * 2018-08-21 2024-03-11 ドルビー・インターナショナル・アーベー コンパンディングによる密過渡イベントの符号化
US11929085B2 (en) 2018-08-30 2024-03-12 Dolby International Ab Method and apparatus for controlling enhancement of low-bitrate coded audio
US12065430B2 (en) 2018-10-26 2024-08-20 Taiho Pharmaceutical Co., Ltd. Indazole compound or salt thereof
CN110265043B (zh) * 2019-06-03 2021-06-01 同响科技股份有限公司 自适应有损或无损的音频压缩和解压缩演算方法
JP2022552456A (ja) 2019-09-13 2022-12-16 ドルビー ラボラトリーズ ライセンシング コーポレイション アーチファクトを低減したダイナミックレンジ圧縮
RU2731602C1 (ru) * 2019-09-30 2020-09-04 Ордена трудового Красного Знамени федеральное государственное бюджетное образовательное учреждение высшего образования "Московский технический университет связи и информатики" (МТУСИ) Способ и устройство компандирования с предыскажением звуковых вещательных сигналов
JP7340100B2 (ja) 2019-10-28 2023-09-06 メルク・シャープ・アンド・ドーム・エルエルシー Ｋｒａｓ ｇ１２ｃ変異型の小分子阻害薬
US20230178084A1 (en) 2020-04-30 2023-06-08 Dolby International Ab Method, apparatus and system for enhancing multi-channel audio in a dynamic range reduced domain
JP2023533427A (ja) * 2020-06-01 2023-08-03 ドルビー・インターナショナル・アーベー 生成ニューラル・ネットワークのパラメータを決定するための方法および装置
CN114095831A (zh) * 2020-08-25 2022-02-25 上海艾为电子技术股份有限公司 多段动态范围控制电路以及音频处理芯片
CN112133319B (zh) * 2020-08-31 2024-09-06 腾讯音乐娱乐科技（深圳）有限公司 音频生成的方法、装置、设备及存储介质
CN117079657B (zh) * 2023-10-16 2024-01-26 中国铁塔股份有限公司 压限处理方法、装置、电子设备及可读存储介质

Family Cites Families (89)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6026678B2 (ja) 1981-04-30 1985-06-25 株式会社青木技研 電動ドライバ−の制御装置
JPS6026678A (ja) 1983-07-22 1985-02-09 Hiroshi Uchiyama 原油受入配管防蝕法
JPH05292592A (ja) * 1992-04-10 1993-11-05 Toshiba Corp 音質補正装置
US6003004A (en) * 1998-01-08 1999-12-14 Advanced Recognition Technologies, Inc. Speech recognition method and system using compressed speech data
JP3485786B2 (ja) 1998-02-10 2004-01-13 三洋電機株式会社 音声データの圧縮／伸長装置
TW390104B (en) * 1998-08-10 2000-05-11 Acer Labs Inc Method and device for down mixing of multi-sound-track compression audio frequency bit stream
US6300888B1 (en) 1998-12-14 2001-10-09 Microsoft Corporation Entrophy code mode switching for frequency-domain audio coding
US6487257B1 (en) * 1999-04-12 2002-11-26 Telefonaktiebolaget L M Ericsson Signal noise reduction by time-domain spectral subtraction using fixed filters
EP1254513A4 (en) * 1999-11-29 2009-11-04 Syfx SYSTEMS AND METHODS FOR SIGNAL PROCESSING
CA2327041A1 (en) * 2000-11-22 2002-05-22 Voiceage Corporation A method for indexing pulse positions and signs in algebraic codebooks for efficient coding of wideband signals
JP2003005797A (ja) 2001-06-21 2003-01-08 Matsushita Electric Ind Co Ltd オーディオ信号の符号化方法及び装置、並びに符号化及び復号化システム
JP4247037B2 (ja) 2003-01-29 2009-04-02 株式会社東芝 音声信号処理方法と装置及びプログラム
EP2665294A2 (en) * 2003-03-04 2013-11-20 Core Wireless Licensing S.a.r.l. Support of a multichannel audio extension
WO2004082288A1 (en) 2003-03-11 2004-09-23 Nokia Corporation Switching between coding schemes
EP1619664B1 (en) 2003-04-30 2012-01-25 Panasonic Corporation Speech coding apparatus, speech decoding apparatus and methods thereof
RU2347282C2 (ru) * 2003-07-07 2009-02-20 Конинклейке Филипс Электроникс Н.В. Система и способ обработки звукового сигнала
KR20050049103A (ko) * 2003-11-21 2005-05-25 삼성전자주식회사 포만트 대역을 이용한 다이얼로그 인핸싱 방법 및 장치
CN1677492A (zh) * 2004-04-01 2005-10-05 北京宫羽数字技术有限责任公司 一种增强音频编解码装置及方法
WO2007120453A1 (en) * 2006-04-04 2007-10-25 Dolby Laboratories Licensing Corporation Calculating and adjusting the perceived loudness and/or the perceived spectral balance of an audio signal
MX2007005027A (es) * 2004-10-26 2007-06-19 Dolby Lab Licensing Corp Calculo y ajuste de la sonoridad percibida y/o el balance espectral percibido de una senal de audio.
WO2006063624A1 (en) * 2004-12-16 2006-06-22 Widex A/S Hearing aid with feedback model gain estimation
KR100647336B1 (ko) * 2005-11-08 2006-11-23 삼성전자주식회사 적응적 시간/주파수 기반 오디오 부호화/복호화 장치 및방법
US7956930B2 (en) 2006-01-06 2011-06-07 Microsoft Corporation Resampling and picture resizing operations for multi-resolution video coding and decoding
WO2007080211A1 (en) * 2006-01-09 2007-07-19 Nokia Corporation Decoding of binaural audio signals
SG136836A1 (en) * 2006-04-28 2007-11-29 St Microelectronics Asia Adaptive rate control algorithm for low complexity aac encoding
CN100543842C (zh) * 2006-05-23 2009-09-23 中兴通讯股份有限公司 基于多统计模型和最小均方误差实现背景噪声抑制的方法
CN101089951B (zh) * 2006-06-16 2011-08-31 北京天籁传音数字技术有限公司 频带扩展编码方法及装置和解码方法及装置
JP4704499B2 (ja) * 2006-07-04 2011-06-15 ドルビー インターナショナル アクチボラゲット 圧縮サブバンド・フィルタ・インパルス応答を作るためのフィルタ・コンプレッサおよび方法
CN101529929B (zh) * 2006-09-05 2012-11-07 Gn瑞声达A/S 具有基于直方图的声环境分类的助听器
JP5270557B2 (ja) * 2006-10-16 2013-08-21 ドルビー・インターナショナル・アクチボラゲット 多チャネルダウンミックスされたオブジェクト符号化における強化された符号化及びパラメータ表現
US7953595B2 (en) * 2006-10-18 2011-05-31 Polycom, Inc. Dual-transform coding of audio signals
JP5141180B2 (ja) * 2006-11-09 2013-02-13 ソニー株式会社 周波数帯域拡大装置及び周波数帯域拡大方法、再生装置及び再生方法、並びに、プログラム及び記録媒体
CN101067931B (zh) * 2007-05-10 2011-04-20 芯晟(北京)科技有限公司 一种高效可配置的频域参数立体声及多声道编解码方法与系统
US9185507B2 (en) * 2007-06-08 2015-11-10 Dolby Laboratories Licensing Corporation Hybrid derivation of surround sound audio channels by controllably combining ambience and matrix-decoded signal components
US7774205B2 (en) * 2007-06-15 2010-08-10 Microsoft Corporation Coding of sparse digital media spectral data
ATE535906T1 (de) * 2007-07-13 2011-12-15 Dolby Lab Licensing Corp Tonverarbeitung mittels auditorischer szenenanalyse und spektraler asymmetrie
EP3288028B1 (en) * 2007-08-27 2019-07-03 Telefonaktiebolaget LM Ericsson (publ) Low-complexity spectral analysis/synthesis using selectable time resolution
JP4854630B2 (ja) * 2007-09-13 2012-01-18 富士通株式会社 音処理装置、利得制御装置、利得制御方法及びコンピュータプログラム
CN100585699C (zh) * 2007-11-02 2010-01-27 华为技术有限公司 一种音频解码的方法和装置
EP2229677B1 (en) * 2007-12-18 2015-09-16 LG Electronics Inc. A method and an apparatus for processing an audio signal
RU2437247C1 (ru) * 2008-01-01 2011-12-20 ЭлДжи ЭЛЕКТРОНИКС ИНК. Способ и устройство для обработки звукового сигнала
ATE500588T1 (de) * 2008-01-04 2011-03-15 Dolby Sweden Ab Audiokodierer und -dekodierer
CN101335000B (zh) * 2008-03-26 2010-04-21 华为技术有限公司 编码的方法及装置
CN101262530B (zh) * 2008-04-29 2011-12-07 中兴通讯股份有限公司 一种消除移动终端回音的装置
EP2299368B1 (en) * 2008-05-01 2017-09-06 Japan Science and Technology Agency Audio processing device and audio processing method
JP4750153B2 (ja) * 2008-05-28 2011-08-17 独立行政法人科学技術振興機構 音響装置及び音響調整方法
CN101281747A (zh) * 2008-05-30 2008-10-08 苏州大学 基于声道参数的汉语耳语音声调识别方法
EP2144171B1 (en) * 2008-07-11 2018-05-16 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio encoder and decoder for encoding and decoding frames of a sampled audio signal
EP4407613A1 (en) * 2008-07-11 2024-07-31 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio encoder, audio decoder, methods for encoding and decoding an audio signal, audio stream and computer program
EP2410521B1 (en) 2008-07-11 2017-10-04 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio signal encoder, method for generating an audio signal and computer program
CA2730355C (en) 2008-07-11 2016-03-22 Guillaume Fuchs Apparatus and method for encoding/decoding an audio signal using an aliasing switch scheme
EP2144230A1 (en) * 2008-07-11 2010-01-13 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Low bitrate audio encoding/decoding scheme having cascaded switches
US20110125507A1 (en) * 2008-07-18 2011-05-26 Dolby Laboratories Licensing Corporation Method and System for Frequency Domain Postfiltering of Encoded Audio Data in a Decoder
CN101656580B (zh) * 2008-08-22 2013-03-20 中兴通讯股份有限公司 全速率语音的处理方法和装置
JP2010079275A (ja) * 2008-08-29 2010-04-08 Sony Corp 周波数帯域拡大装置及び方法、符号化装置及び方法、復号化装置及び方法、並びにプログラム
CN101359902B (zh) * 2008-09-25 2012-03-21 炬才微电子（深圳）有限公司 一种音频信号的均衡方法及系统
JP5245714B2 (ja) * 2008-10-24 2013-07-24 ヤマハ株式会社 雑音抑圧装置及び雑音抑圧方法
JP5603339B2 (ja) * 2008-10-29 2014-10-08 ドルビー インターナショナル アーベー 既存のオーディオゲインメタデータを使用した信号のクリッピングの保護
ATE552651T1 (de) 2008-12-24 2012-04-15 Dolby Lab Licensing Corp Audiosignallautheitbestimmung und modifikation im frequenzbereich
US8626516B2 (en) * 2009-02-09 2014-01-07 Broadcom Corporation Method and system for dynamic range control in an audio processing system
TWI618352B (zh) * 2009-02-18 2018-03-11 杜比國際公司 用於高頻重建或參數立體聲之複指數調變濾波器組
JP4843691B2 (ja) * 2009-03-09 2011-12-21 株式会社東芝 信号特性変化装置
CN101853666B (zh) * 2009-03-30 2012-04-04 华为技术有限公司 一种语音增强的方法和装置
CN101521014B (zh) * 2009-04-08 2011-09-14 武汉大学 音频带宽扩展编解码装置
US8391212B2 (en) * 2009-05-05 2013-03-05 Huawei Technologies Co., Ltd. System and method for frequency domain audio post-processing based on perceptual masking
US9093968B2 (en) * 2009-05-29 2015-07-28 Sharp Kabushiki Kaisha Sound reproducing apparatus, sound reproducing method, and recording medium
US8949114B2 (en) * 2009-06-04 2015-02-03 Optis Wireless Technology, Llc Method and arrangement for estimating the quality degradation of a processed signal
CN101668303B (zh) * 2009-09-24 2012-02-15 武汉中元通信股份有限公司 双频段宽带电台野外联试通信仿真方法与平台
US8571231B2 (en) * 2009-10-01 2013-10-29 Qualcomm Incorporated Suppressing noise in an audio signal
US9159337B2 (en) * 2009-10-21 2015-10-13 Dolby International Ab Apparatus and method for generating a high frequency audio signal using adaptive oversampling
CN101916567B (zh) * 2009-11-23 2012-02-01 瑞声声学科技(深圳)有限公司 应用于双麦克风系统的语音增强方法
US9584235B2 (en) 2009-12-16 2017-02-28 Nokia Technologies Oy Multi-channel audio processing
CN101800520B (zh) * 2010-02-25 2013-05-22 青岛海信移动通信技术股份有限公司 自动增益控制的实现方法及实现系统
TWI459828B (zh) * 2010-03-08 2014-11-01 Dolby Lab Licensing Corp 在多頻道音訊中決定語音相關頻道的音量降低比例的方法及系統
US8616516B2 (en) 2010-03-24 2013-12-31 Intertechnique S.A. Assembling device for cabin interior components
CN101867809A (zh) * 2010-04-09 2010-10-20 中国科学院光电技术研究所 基于脉动阵列的高速图像压缩vlsi编码方法及编码器
US8886523B2 (en) 2010-04-14 2014-11-11 Huawei Technologies Co., Ltd. Audio decoding based on audio class with control code for post-processing modes
US8793126B2 (en) * 2010-04-14 2014-07-29 Huawei Technologies Co., Ltd. Time/frequency two dimension post-processing
US8964993B2 (en) * 2010-04-27 2015-02-24 Yobe, Inc. Systems and methods for enhancing audio content
WO2011158485A2 (ja) 2010-06-14 2011-12-22 パナソニック株式会社 オーディオハイブリッド符号化装置およびオーディオハイブリッド復号装置
CN102361506A (zh) * 2011-06-08 2012-02-22 北京昆腾微电子有限公司 无线音频通信系统、以及用于发射音频信号的方法和设备
US20130136282A1 (en) * 2011-11-30 2013-05-30 David McClain System and Method for Spectral Personalization of Sound
CN102522092B (zh) * 2011-12-16 2013-06-19 大连理工大学 一种基于g．711．1的语音带宽扩展的装置和方法
CN102543086B (zh) * 2011-12-16 2013-08-14 大连理工大学 一种基于音频水印的语音带宽扩展的装置和方法
CN102625220B (zh) * 2012-03-22 2014-05-07 清华大学 一种确定助听设备听力补偿增益的方法
CN102737647A (zh) * 2012-07-23 2012-10-17 武汉大学 双声道音频音质增强编解码方法及装置
CN104995680B (zh) 2013-04-05 2018-04-03 杜比实验室特许公司 使用高级频谱延拓降低量化噪声的压扩装置和方法
US10861475B2 (en) * 2015-11-10 2020-12-08 Dolby International Ab Signal-dependent companding system and method to reduce quantization noise
JP7447085B2 (ja) * 2018-08-21 2024-03-11 ドルビー・インターナショナル・アーベー コンパンディングによる密過渡イベントの符号化

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