MX2012004623A - Aparato y metodo para generar una señal de audio de alta frecuencia usando sobremuestreo adaptivo. - Google Patents

Aparato y metodo para generar una señal de audio de alta frecuencia usando sobremuestreo adaptivo.

Info

Publication number
MX2012004623A
MX2012004623A MX2012004623A MX2012004623A MX2012004623A MX 2012004623 A MX2012004623 A MX 2012004623A MX 2012004623 A MX2012004623 A MX 2012004623A MX 2012004623 A MX2012004623 A MX 2012004623A MX 2012004623 A MX2012004623 A MX 2012004623A
Authority
MX
Mexico
Prior art keywords
spectral
generating
high frequency
input
audio signal
Prior art date
Application number
MX2012004623A
Other languages
English (en)
Inventor
Lars Villemoes
Per Ekstrand
Stephan Wilde
Sascha Disch
Frederik Nagel
Original Assignee
Dolby Int Ab
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 Int Ab filed Critical Dolby Int Ab
Publication of MX2012004623A publication Critical patent/MX2012004623A/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
    • 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
    • G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading techniques
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Quality & Reliability (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

Un aparato para generar una señal de audio de alta frecuencia que comprende un analizador (12) para analizar una señal de entrada a fin de determinar adaptivamente una información de componente transitorio. Además se provee un conversor espectral (14) para convertir la señal de entrada en una representación espectral de entrada. El procesador espectral (13) procesa la representación espectral de entrada para generar una representación espectral procesada que comprende valores de frecuencias más altas que la representación espectral de entrada. Un conversor de tiempo (17) es configurado para convertir la representación espectral procesada en una representación en el tiempo, en lo cual el conversor espectral o el conversor de tiempo pueden ser controlados para llevar a cabo un sobremuestreo en el dominio de la frecuencia para la primera porción de la señal de entrada que tiene asociada la información de componente transitorio y para no llevar a cabo el sobremuestreo en el dominio de la frecuencia para la segunda porción de la señal de entrada que no tiene asociada la información de componente transitorio.
MX2012004623A 2009-10-21 2010-05-25 Aparato y metodo para generar una señal de audio de alta frecuencia usando sobremuestreo adaptivo. MX2012004623A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US25377609P 2009-10-21 2009-10-21
PCT/EP2010/057130 WO2011047886A1 (en) 2009-10-21 2010-05-25 Apparatus and method for generating a high frequency audio signal using adaptive oversampling

Publications (1)

Publication Number Publication Date
MX2012004623A true MX2012004623A (es) 2012-05-08

Family

ID=42470889

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2012004623A MX2012004623A (es) 2009-10-21 2010-05-25 Aparato y metodo para generar una señal de audio de alta frecuencia usando sobremuestreo adaptivo.

Country Status (16)

Country Link
US (1) US9159337B2 (es)
EP (1) EP2486564B1 (es)
JP (1) JP5844266B2 (es)
KR (1) KR101341115B1 (es)
CN (1) CN102648495B (es)
AR (1) AR078717A1 (es)
AU (1) AU2010310041B2 (es)
BR (1) BR112012009249B1 (es)
CA (1) CA2778205C (es)
ES (1) ES2461172T3 (es)
HK (1) HK1174733A1 (es)
MX (1) MX2012004623A (es)
PL (1) PL2486564T3 (es)
RU (1) RU2547220C2 (es)
TW (1) TWI431614B (es)
WO (1) WO2011047886A1 (es)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3723090B1 (en) 2009-10-21 2021-12-15 Dolby International AB Oversampling in a combined transposer filter bank
US9312969B2 (en) * 2010-04-15 2016-04-12 North Eleven Limited Remote server system for combining audio files and for managing combined audio files for downloading by local systems
EP2581905B1 (en) * 2010-06-09 2016-01-06 Panasonic Intellectual Property Corporation of America Bandwidth extension method, bandwidth extension apparatus, program, integrated circuit, and audio decoding apparatus
US12002476B2 (en) 2010-07-19 2024-06-04 Dolby International Ab Processing of audio signals during high frequency reconstruction
US9117459B2 (en) 2010-07-19 2015-08-25 Dolby International Ab Processing of audio signals during high frequency reconstruction
CN103918029B (zh) 2011-11-11 2016-01-20 杜比国际公司 使用过采样谱带复制的上采样
CN104221082B (zh) 2012-03-29 2017-03-08 瑞典爱立信有限公司 谐波音频信号的带宽扩展
KR20150016930A (ko) * 2012-05-14 2015-02-13 엘지전자 주식회사 무선 통신 시스템에서 위치 측정 방법
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
US9704486B2 (en) 2012-12-11 2017-07-11 Amazon Technologies, Inc. Speech recognition power management
MY172752A (en) 2013-01-29 2019-12-11 Fraunhofer Ges Forschung Decoder for generating a frequency enhanced audio signal, method of decoding encoder for generating an encoded signal and method of encoding using compact selection side information
CA2961336C (en) * 2013-01-29 2021-09-28 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Audio encoders, audio decoders, systems, methods and computer programs using an increased temporal resolution in temporal proximity of onsets or offsets of fricatives or affricates
TWI557727B (zh) 2013-04-05 2016-11-11 杜比國際公司 音訊處理系統、多媒體處理系統、處理音訊位元流的方法以及電腦程式產品
JP6026678B2 (ja) * 2013-04-05 2016-11-16 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 高度なスペクトラム拡張を使用して量子化ノイズを低減するための圧縮伸張装置および方法
US10847170B2 (en) 2015-06-18 2020-11-24 Qualcomm Incorporated Device and method for generating a high-band signal from non-linearly processed sub-ranges
US9837089B2 (en) * 2015-06-18 2017-12-05 Qualcomm Incorporated High-band signal generation
PL3405949T3 (pl) * 2016-01-22 2020-07-27 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Urządzenie i sposób szacowania międzykanałowej różnicy czasowej
US9947323B2 (en) * 2016-04-01 2018-04-17 Intel Corporation Synthetic oversampling to enhance speaker identification or verification
TWI834582B (zh) 2018-01-26 2024-03-01 瑞典商都比國際公司 用於執行一音訊信號之高頻重建之方法、音訊處理單元及非暫時性電腦可讀媒體
CN111835600B (zh) * 2019-04-16 2022-09-06 达发科技(苏州)有限公司 多模式超高速数字用户线路收发器设备及其执行方法
CN114582814A (zh) * 2020-11-30 2022-06-03 泽鸿(广州)电子科技有限公司 支撑结构

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU980133A1 (ru) * 1981-02-06 1982-12-07 Московский Ордена Трудового Красного Знамени Электротехнический Институт Связи Устройство анализа и синтеза речевого сигнала
SU1316030A1 (ru) * 1986-01-06 1987-06-07 Акустический институт им.акад.Н.Н.Андреева Способ анализа и синтеза речи и устройство дл его осуществлени
US5029509A (en) 1989-05-10 1991-07-09 Board Of Trustees Of The Leland Stanford Junior University Musical synthesizer combining deterministic and stochastic waveforms
SE512719C2 (sv) * 1997-06-10 2000-05-02 Lars Gustaf Liljeryd En metod och anordning för reduktion av dataflöde baserad på harmonisk bandbreddsexpansion
KR100528325B1 (ko) 2002-12-18 2005-11-15 삼성전자주식회사 비트율 조절이 가능한 스테레오 오디오 부호화 및복호화방법 및 그 장치
US8843378B2 (en) 2004-06-30 2014-09-23 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Multi-channel synthesizer and method for generating a multi-channel output signal
US8374365B2 (en) * 2006-05-17 2013-02-12 Creative Technology Ltd Spatial audio analysis and synthesis for binaural reproduction and format conversion
DE102008015702B4 (de) * 2008-01-31 2010-03-11 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zur Bandbreitenerweiterung eines Audiosignals
EP3273442B1 (en) 2008-03-20 2021-10-20 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for synthesizing a parameterized representation of an audio signal
US8423852B2 (en) 2008-04-15 2013-04-16 Qualcomm Incorporated Channel decoding-based error detection
ES2685652T3 (es) 2008-08-28 2018-10-10 Trw Automotive U.S. Llc Método y aparato para controlar un dispositivo de seguridad accionable
EP2234103B1 (en) * 2009-03-26 2011-09-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Device and method for manipulating an audio signal

Also Published As

Publication number Publication date
CN102648495A (zh) 2012-08-22
TWI431614B (zh) 2014-03-21
TW201133471A (en) 2011-10-01
RU2012119259A (ru) 2013-11-27
KR101341115B1 (ko) 2013-12-13
EP2486564B1 (en) 2014-04-09
CN102648495B (zh) 2014-05-28
AU2010310041B2 (en) 2013-08-15
EP2486564A1 (en) 2012-08-15
ES2461172T3 (es) 2014-05-19
AU2010310041A1 (en) 2012-06-14
AR078717A1 (es) 2011-11-30
WO2011047886A1 (en) 2011-04-28
KR20120094916A (ko) 2012-08-27
BR112012009249B1 (pt) 2021-11-09
BR112012009249A2 (pt) 2020-12-22
HK1174733A1 (en) 2013-06-14
RU2547220C2 (ru) 2015-04-10
PL2486564T3 (pl) 2014-09-30
CA2778205C (en) 2015-11-24
US20120281859A1 (en) 2012-11-08
JP2013508758A (ja) 2013-03-07
US9159337B2 (en) 2015-10-13
JP5844266B2 (ja) 2016-01-13
CA2778205A1 (en) 2011-04-28

Similar Documents

Publication Publication Date Title
MX2012004623A (es) Aparato y metodo para generar una señal de audio de alta frecuencia usando sobremuestreo adaptivo.
MY164797A (en) Apparatus and method for processing a decoded audio signal in a spectral domain
MX2010008279A (es) Metodo y aparato para calcular energia de banda alta en un sistema de extension de ancho de banda.
MY154667A (en) Device and method for manipulating an audio signal
EP4276823A3 (en) Oversampling in a combined transposer filter bank
MX2010009666A (es) Aparato para mezclar una pluralidad de corrientes de datos de entrada.
MY177748A (en) Processing of audio signals during high frequency reconstruction
WO2010086461A8 (en) Improved harmonic transposition
MY180550A (en) Cross product enhanced harmonic transposition
MX2010008372A (es) Aparato y metodo para calcular coeficientes de filtro para supresion de eco.
MY161609A (en) Frequency band extending device and method, encoding device and method, decoding device and method, and program
MX2013006364A (es) Aparato y metodo para descomponer una señal de entrada utilizando una curva de referencia calculada.
WO2011087332A3 (ko) 오디오 신호 처리 방법 및 장치
WO2009055281A3 (en) Hearing aid apparatus
WO2008139219A3 (en) Signal processing system
WO2008099641A1 (ja) Ｍｅｍｓマイクロホン装置
GB2493030B (en) Method of sound analysis and associated sound synthesis
MY155990A (en) Cross product enhanced subband block based harmonic transposition
TW200743398A (en) Method of parameter identification and parameter optimization of micro-speaker
NZ734344A (en) Multi-channel digital microphone
MX2013014723A (es) Metodo y aparato para descomponer una grabacion estereofonica utilizando el procedimiento del dominio de la frecuencia empleando un generador de ponderaciones espectrales.
TW200734888A (en) Visualization system of acoustic source energy distribution and the method thereof
JP2008052117A (ja) 雑音除去装置、方法及びプログラム
WO2012020394A3 (en) Background sound removal for privacy and personalization use
EP3031217A2 (en) Hearing instrument with t-coil

Legal Events

Date Code Title Description
FG Grant or registration