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AR098480A2 - Aparato y método para codificar una porción de una señal de audio utilizando detección de un transitorio y resultado de calidad - Google Patents

Aparato y método para codificar una porción de una señal de audio utilizando detección de un transitorio y resultado de calidad

Info

Publication number
AR098480A2
AR098480A2 ARP140104355A ARP140104355A AR098480A2 AR 098480 A2 AR098480 A2 AR 098480A2 AR P140104355 A ARP140104355 A AR P140104355A AR P140104355 A ARP140104355 A AR P140104355A AR 098480 A2 AR098480 A2 AR 098480A2
Authority
AR
Argentina
Prior art keywords
audio signal
coding algorithm
detection
coding
quality result
Prior art date
Application number
ARP140104355A
Other languages
English (en)
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 AR098480A2 publication Critical patent/AR098480A2/es

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    • 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
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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Acoustics & Sound (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Health & Medical Sciences (AREA)
  • Signal Processing (AREA)
  • Computational Linguistics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Quality & Reliability (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Algebra (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

Un aparato para codificar una porción de señal de audio (10) para obtener una señal de audio codificada (26) para la porción de señal de audio que comprende un detector de transitorios (12) para detectar si una señal de transitorios se encuentra en la porción de señal de audio para obtener una detección del resultado de transitorios (14), una etapa del codificador (16) para aplicar un primer algoritmo de codificación en la señal de audio, el primer algoritmo de codificación posee una primera característica, y para aplicar un segundo algoritmo de codificación en la señal de audio, el segundo algoritmo de codificación posee una segunda característica diferente a la primera característica, un procesador (18) para determinar que algoritmo de codificación da por resultado una señal de audio codificada con mejor aproximación a la porción de señal de audio con respecto al otro algoritmo de codificación para obtener un resultado de calidad (20), y un controlador (22) para determinar si la señal de audio codificada para la porción de señal de audio debe ser generada por el primer algoritmo de codificación o segundo algoritmo de codificación basado en la detección del resultado de transitorios (14) y resultado de calidad (20).
ARP140104355A 2011-02-14 2014-11-19 Aparato y método para codificar una porción de una señal de audio utilizando detección de un transitorio y resultado de calidad AR098480A2 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201161442632P 2011-02-14 2011-02-14
PCT/EP2012/052396 WO2012110448A1 (en) 2011-02-14 2012-02-13 Apparatus and method for coding a portion of an audio signal using a transient detection and a quality result

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AR098480A2 true AR098480A2 (es) 2016-06-01

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ARP120100470A AR085217A1 (es) 2011-02-14 2012-02-13 Aparato y metodo para codificar una porcion de una señal de audio utilizando deteccion de un transiente y resultado de calidad
ARP140104355A AR098480A2 (es) 2011-02-14 2014-11-19 Aparato y método para codificar una porción de una señal de audio utilizando detección de un transitorio y resultado de calidad

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US (1) US9620129B2 (es)
EP (1) EP2676270B1 (es)
JP (1) JP5914527B2 (es)
KR (2) KR101562281B1 (es)
CN (1) CN103493129B (es)
AR (2) AR085217A1 (es)
AU (1) AU2012217216B2 (es)
BR (1) BR112013020588B1 (es)
CA (2) CA2827266C (es)
ES (1) ES2623291T3 (es)
MX (1) MX2013009304A (es)
MY (1) MY166006A (es)
PL (1) PL2676270T3 (es)
PT (1) PT2676270T (es)
RU (1) RU2573231C2 (es)
SG (1) SG192714A1 (es)
TW (1) TWI476760B (es)
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ZA (1) ZA201306842B (es)

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BRPI0917762B1 (pt) 2008-12-15 2020-09-29 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V Codificador de áudio e decodificador de extensão de largura de banda
RU2618848C2 (ru) * 2013-01-29 2017-05-12 Фраунхофер-Гезелльшафт Цур Фердерунг Дер Ангевандтен Форшунг Е.Ф. Устройство и способ для выбора одного из первого алгоритма кодирования аудио и второго алгоритма кодирования аудио
SG11201506543WA (en) 2013-02-20 2015-09-29 Fraunhofer Ges Forschung Apparatus and method for generating an encoded signal or for decoding an encoded audio signal using a multi overlap portion
CN105074818B (zh) 2013-02-21 2019-08-13 杜比国际公司 音频编码系统、用于产生比特流的方法以及音频解码器
AU2014283393A1 (en) 2013-06-21 2016-02-04 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for improved concealment of the adaptive codebook in ACELP-like concealment employing improved pitch lag estimation
TWI634547B (zh) * 2013-09-12 2018-09-01 瑞典商杜比國際公司 在包含至少四音訊聲道的多聲道音訊系統中之解碼方法、解碼裝置、編碼方法以及編碼裝置以及包含電腦可讀取的媒體之電腦程式產品
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