AR113482A1 - Codificadores de audio, decodificadores de audio, métodos y programas de computadora que adaptan una codificación y decodificación de bits menos significativos - Google Patents

Codificadores de audio, decodificadores de audio, métodos y programas de computadora que adaptan una codificación y decodificación de bits menos significativos

Info

Publication number
AR113482A1
AR113482A1 ARP180103274A ARP180103274A AR113482A1 AR 113482 A1 AR113482 A1 AR 113482A1 AR P180103274 A ARP180103274 A AR P180103274A AR P180103274 A ARP180103274 A AR P180103274A AR 113482 A1 AR113482 A1 AR 113482A1
Authority
AR
Argentina
Prior art keywords
audio
spectral values
significant bits
audio decoder
decoded
Prior art date
Application number
ARP180103274A
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 AR113482A1 publication Critical patent/AR113482A1/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
    • G10L19/002—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
    • 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
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • 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
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/3059—Digital compression and data reduction techniques where the original information is represented by a subset or similar information, e.g. lossy compression
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/3066—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction by means of a mask or a bit-map
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/60—General implementation details not specific to a particular type of compression
    • H03M7/6005—Decoder aspects
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/60—General implementation details not specific to a particular type of compression
    • H03M7/6011—Encoder aspects

Landscapes

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

Abstract

Un decodificador de audio para proporcionar una información de audio decodificada sobre la base de una información de audio codificada está configurado para obtener valores espectrales decodificados sobre la base de una información codificada que representa los valores espectrales. El decodificador de audio está configurado para decodificar en forma conjunta dos o más bits más significativos por valor espectral sobre la base de los respectivos códigos de símbolo para un conjunto de valores espectrales usando una decodificación aritmética, en donde un respectivo código de símbolo representa dos o más bits más significativos por valor espectral para uno o más valores espectrales. El decodificador de audio está configurado para decodificar uno o más bits menos significativos asociados con uno o más valores espectrales dependiendo de cuánta información de bits menos significativos está disponible, de modo que se decodifican uno o más bits menos significativos asociados con uno o más de los valores espectrales, mientras que no se decodifican bits menos significativos para uno o más valores espectrales diferentes para los cuales se decodifican uno o más bits más significativos y que comprenden más bits que el uno o más bits más significativos. El decodificador de audio está configurado para proporcionar la información de audio decodificada usando los valores espectrales. Las modificaciones del decodificador de audio son posibles. También se describe un decodificador de audio.
ARP180103274A 2017-11-10 2018-11-09 Codificadores de audio, decodificadores de audio, métodos y programas de computadora que adaptan una codificación y decodificación de bits menos significativos AR113482A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2017/078959 WO2019091576A1 (en) 2017-11-10 2017-11-10 Audio encoders, audio decoders, methods and computer programs adapting an encoding and decoding of least significant bits

Publications (1)

Publication Number Publication Date
AR113482A1 true AR113482A1 (es) 2020-05-06

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
ARP180103274A AR113482A1 (es) 2017-11-10 2018-11-09 Codificadores de audio, decodificadores de audio, métodos y programas de computadora que adaptan una codificación y decodificación de bits menos significativos

Country Status (17)

Country Link
US (3) US11315583B2 (es)
EP (3) EP4336503A3 (es)
JP (3) JP7104785B2 (es)
KR (3) KR102492554B1 (es)
CN (3) CN111933160B (es)
AR (1) AR113482A1 (es)
AU (3) AU2018365309B2 (es)
BR (3) BR112020009325A2 (es)
CA (3) CA3148999C (es)
ES (1) ES2972210T3 (es)
MX (3) MX2020004770A (es)
PL (1) PL3707710T3 (es)
RU (3) RU2767286C2 (es)
SG (3) SG11202004287YA (es)
TW (1) TWI758556B (es)
WO (2) WO2019091576A1 (es)
ZA (3) ZA202003441B (es)

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CN112735446B (zh) * 2020-12-30 2022-05-17 北京百瑞互联技术有限公司 在lc3音频码流中添加额外信息的方法、系统及介质
CN114913863B (zh) * 2021-02-09 2024-10-18 同响科技股份有限公司 数字音信数据编码方法
CN112992166B (zh) * 2021-05-08 2021-08-20 北京百瑞互联技术有限公司 一种动态调整lc3音频编码速率的方法、装置及存储介质
CN114550732B (zh) * 2022-04-15 2022-07-08 腾讯科技（深圳）有限公司 一种高频音频信号的编解码方法和相关装置

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