AR015495A1 - Un procesador de senal de banda de audio para telefonia digital, un circuito de interconexion para controlar la ganancia de dicho procesador, un metodo para el procesamiento de dicha senal de banda que utiliza dicho procesador y un metodo para controlar la ganancia de dicho procesador mediante el em - Google Patents

Un procesador de senal de banda de audio para telefonia digital, un circuito de interconexion para controlar la ganancia de dicho procesador, un metodo para el procesamiento de dicha senal de banda que utiliza dicho procesador y un metodo para controlar la ganancia de dicho procesador mediante el em

Info

Publication number
AR015495A1
AR015495A1 ARP980106327A ARP980106327A AR015495A1 AR 015495 A1 AR015495 A1 AR 015495A1 AR P980106327 A ARP980106327 A AR P980106327A AR P980106327 A ARP980106327 A AR P980106327A AR 015495 A1 AR015495 A1 AR 015495A1
Authority
AR
Argentina
Prior art keywords
processor
digital
gain
signal
audio
Prior art date
Application number
ARP980106327A
Other languages
English (en)
Original Assignee
Qualcomm Inc
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 Qualcomm Inc filed Critical Qualcomm Inc
Publication of AR015495A1 publication Critical patent/AR015495A1/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
    • G10L19/04—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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/18—Automatic control for modifying the range of signals the converter can handle, e.g. gain ranging
    • H03M1/181—Automatic control for modifying the range of signals the converter can handle, e.g. gain ranging in feedback mode, i.e. by determining the range to be selected from one or more previous digital output values
    • H03M1/183—Automatic control for modifying the range of signals the converter can handle, e.g. gain ranging in feedback mode, i.e. by determining the range to be selected from one or more previous digital output values the feedback signal controlling the gain of an amplifier or attenuator preceding the analogue/digital converter
    • H03M1/185—Automatic control for modifying the range of signals the converter can handle, e.g. gain ranging in feedback mode, i.e. by determining the range to be selected from one or more previous digital output values the feedback signal controlling the gain of an amplifier or attenuator preceding the analogue/digital converter the determination of the range being based on more than one digital output value, e.g. on a running average, a power estimation or the rate of change

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Analogue/Digital Conversion (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Dc Digital Transmission (AREA)

Abstract

Un procesador de senal de banda de audio para telefonía digital. Dicho procesador de senal de banda de audio comprende un primer amplificador de gananciavariable (202) para recibir una senal de audio análoga; un convertidor análogo a digital (204)pa ra convertir dicha senal de audio análoga a una senal de audiodigital;y un circuito de interconexion (206) para controlar la ganancia de dicho procesador, de igual modo ordena dicha senal de audio digital en una secuenciade tramas de transmisioncodi ficadas, y recibe una secuencia de tramas de recepcion codificadas, cada trama de recepcion comprende una cantidad predeterminadade bits de datos de senal de audio digitales codificados, y una cantidad predeterminada de bits de control deganancia di gital. El circuito de interconexion,(206), de igual modo, ajusta el nivel de ganancia de dicho primer amplificador de ganancia variable, en respuesta a dichos bits de control de gananciadigitales. En otra implementacion, el procesador debanda de aud io además, comprende un segundo amplificador de ganancia variable (202), y el circuito deinterconexion ajusta el nivel de ganancia de dicho segundo amplificador de ganancia variable en respuesta a dichos bits de control de gananciadigital. Tambiénse propone un método para el procesamiento de dicha senal de banda de audio que utiliza dicho procesador y un método para controlar la ganancia de dichoprocesaro mediante el empleo de dicho circuito.
ARP980106327A 1997-12-12 1998-12-11 Un procesador de senal de banda de audio para telefonia digital, un circuito de interconexion para controlar la ganancia de dicho procesador, un metodo para el procesamiento de dicha senal de banda que utiliza dicho procesador y un metodo para controlar la ganancia de dicho procesador mediante el em AR015495A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/989,743 US6233554B1 (en) 1997-12-12 1997-12-12 Audio CODEC with AGC controlled by a VOCODER

Publications (1)

Publication Number Publication Date
AR015495A1 true AR015495A1 (es) 2001-05-02

Family

ID=25535422

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP980106327A AR015495A1 (es) 1997-12-12 1998-12-11 Un procesador de senal de banda de audio para telefonia digital, un circuito de interconexion para controlar la ganancia de dicho procesador, un metodo para el procesamiento de dicha senal de banda que utiliza dicho procesador y un metodo para controlar la ganancia de dicho procesador mediante el em

Country Status (16)

Country Link
US (1) US6233554B1 (es)
EP (1) EP1038358B1 (es)
JP (1) JP4298160B2 (es)
KR (1) KR100610134B1 (es)
CN (1) CN1130023C (es)
AR (1) AR015495A1 (es)
AU (1) AU744770B2 (es)
BR (1) BR9813482A (es)
CA (1) CA2313219C (es)
DE (1) DE69827162T2 (es)
ES (1) ES2230736T3 (es)
HK (1) HK1036166A1 (es)
IL (1) IL136546A0 (es)
NO (1) NO326176B1 (es)
WO (1) WO1999030421A1 (es)
ZA (1) ZA9811353B (es)

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TW550948B (en) * 2001-07-04 2003-09-01 Leadtek Research Inc Audio/video IP camcorder
DE10216921A1 (de) * 2002-04-15 2003-10-23 Bosch Gmbh Robert Verfahren und Vorrichtung zum Auffüllen von Datenabschnitten sowie Bussystem
US7454331B2 (en) * 2002-08-30 2008-11-18 Dolby Laboratories Licensing Corporation Controlling loudness of speech in signals that contain speech and other types of audio material
KR101164937B1 (ko) * 2003-05-28 2012-07-12 돌비 레버러토리즈 라이쎈싱 코오포레이션 오디오 신호의 인식된 라우드니스를 계산 및 조정하는방법, 장치 및 컴퓨터 프로그램
KR100827226B1 (ko) * 2003-12-01 2008-05-07 삼성전자주식회사 아날로그 음향 신호를 디지털 데이터로 변환하는 장치 및방법
JP4629971B2 (ja) * 2003-12-11 2011-02-09 株式会社半導体エネルギー研究所 非直線ａ／ｄ変換されたデジタル信号対応のｄ／ａ変換回路及びそれを内蔵した音声信号処理回路及び表示装置
US8199933B2 (en) 2004-10-26 2012-06-12 Dolby Laboratories Licensing Corporation Calculating and adjusting the perceived loudness and/or the perceived spectral balance of an audio signal
CN101048935B (zh) 2004-10-26 2011-03-23 杜比实验室特许公司 控制音频信号的单位响度或部分单位响度的方法和设备
BRPI0610719B1 (pt) * 2005-04-18 2015-11-24 Basf Ag preparação, processo para a produção da mesma, e, uso de preparações
JP5185254B2 (ja) * 2006-04-04 2013-04-17 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 Ｍｄｃｔ領域におけるオーディオ信号音量測定と改良
TWI517562B (zh) 2006-04-04 2016-01-11 杜比實驗室特許公司 用於將多聲道音訊信號之全面感知響度縮放一期望量的方法、裝置及電腦程式
AU2007243586B2 (en) 2006-04-27 2010-12-23 Dolby Laboratories Licensing Corporation Audio gain control using specific-loudness-based auditory event detection
WO2008051347A2 (en) 2006-10-20 2008-05-02 Dolby Laboratories Licensing Corporation Audio dynamics processing using a reset
US8521314B2 (en) * 2006-11-01 2013-08-27 Dolby Laboratories Licensing Corporation Hierarchical control path with constraints for audio dynamics processing
CN101790758B (zh) * 2007-07-13 2013-01-09 杜比实验室特许公司 用于控制音频信号的信号处理的设备和方法
JPWO2009087923A1 (ja) * 2008-01-11 2011-05-26 日本電気株式会社 信号分析制御、信号分析、信号制御のシステム、装置、方法及びプログラム
WO2009113516A1 (ja) * 2008-03-14 2009-09-17 日本電気株式会社 信号分析制御システム及びその方法と、信号制御装置及びその方法と、プログラム
JP5773124B2 (ja) * 2008-04-21 2015-09-02 日本電気株式会社 信号分析制御及び信号制御のシステム、装置、方法及びプログラム
US8140342B2 (en) * 2008-12-29 2012-03-20 Motorola Mobility, Inc. Selective scaling mask computation based on peak detection
CN102568480A (zh) * 2010-12-27 2012-07-11 深圳富泰宏精密工业有限公司 双模手机语音传输系统
CN102148607B (zh) * 2011-04-15 2016-03-30 昆腾微电子股份有限公司 用于放大器的增益控制装置和方法、电话机
US9124365B2 (en) * 2013-03-15 2015-09-01 Cellco Partnership Enhanced mobile device audio performance
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US9620134B2 (en) * 2013-10-10 2017-04-11 Qualcomm Incorporated Gain shape estimation for improved tracking of high-band temporal characteristics
GB2566164B (en) * 2016-02-19 2020-02-19 Imagination Tech Ltd Dynamic gain controller
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CN106023998B (zh) * 2016-05-27 2019-12-13 北京视觉世界科技有限公司 摄像头音频输入装置、去噪方法和摄像头
CN111583945B (zh) * 2020-04-30 2023-04-25 抖音视界有限公司 用于处理音频的方法、装置、电子设备和计算机可读介质
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Also Published As

Publication number Publication date
AU1725499A (en) 1999-06-28
NO326176B1 (no) 2008-10-13
JP2001526414A (ja) 2001-12-18
EP1038358A1 (en) 2000-09-27
KR100610134B1 (ko) 2006-08-09
CA2313219C (en) 2007-05-29
DE69827162D1 (de) 2004-11-25
KR20010032999A (ko) 2001-04-25
EP1038358B1 (en) 2004-10-20
NO20002955L (no) 2000-08-10
NO20002955D0 (no) 2000-06-09
ZA9811353B (en) 2000-10-11
ES2230736T3 (es) 2005-05-01
HK1036166A1 (en) 2001-12-21
AU744770B2 (en) 2002-03-07
DE69827162T2 (de) 2005-10-20
WO1999030421A1 (en) 1999-06-17
CA2313219A1 (en) 1999-06-17
IL136546A0 (en) 2001-06-14
JP4298160B2 (ja) 2009-07-15
CN1291377A (zh) 2001-04-11
US6233554B1 (en) 2001-05-15
CN1130023C (zh) 2003-12-03
BR9813482A (pt) 2000-11-14

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