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AR122486A2 - Decodificador de audio, codificador de audio, método para codificar una señal de audio y método para decodificar una señal de audio codificada - Google Patents

Decodificador de audio, codificador de audio, método para codificar una señal de audio y método para decodificar una señal de audio codificada

Info

Publication number
AR122486A2
AR122486A2 ARP210101477A ARP210101477A AR122486A2 AR 122486 A2 AR122486 A2 AR 122486A2 AR P210101477 A ARP210101477 A AR P210101477A AR P210101477 A ARP210101477 A AR P210101477A AR 122486 A2 AR122486 A2 AR 122486A2
Authority
AR
Argentina
Prior art keywords
audio
audio signal
encoder
encoding
decoding
Prior art date
Application number
ARP210101477A
Other languages
English (en)
Inventor
Christian Helmrich
Bernd Edler
Max Neuendorf
Benjamin Schubert
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 AR122486A2 publication Critical patent/AR122486A2/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
    • G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients
    • 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
    • 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
    • G10L19/26—Pre-filtering or post-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
    • G10L25/12—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 prediction coefficients
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51—Motion estimation or motion compensation
    • H04N19/547—Motion estimation performed in a transform domain
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/63—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using sub-band based transform, e.g. wavelets
    • H04N19/635—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using sub-band based transform, e.g. wavelets characterised by filter definition or implementation details

Landscapes

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

Abstract

Un codificador para codificar una señal de audio. El codificador está configurado para codificar la señal de audio en el dominio de la transformada o en el dominio de banco de filtros, donde el codificador está configurado para determinar coeficientes espectrales de la señal de audio correspondientes a una trama actual y por lo menos una trama anterior, donde el codificador está configurado para aplicar selectivamente la codificación predictiva a una pluralidad de coeficientes espectrales individuales o grupos de coeficientes espectrales que están separados por al menos un coeficiente espectral.
ARP210101477A 2015-03-09 2021-05-31 Decodificador de audio, codificador de audio, método para codificar una señal de audio y método para decodificar una señal de audio codificada AR122486A2 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP15158253 2015-03-09

Publications (1)

Publication Number Publication Date
AR122486A2 true AR122486A2 (es) 2022-09-14

Family

ID=52692424

Family Applications (6)

Application Number Title Priority Date Filing Date
ARP160100621A AR103890A1 (es) 2015-03-09 2016-03-09 Codificador de audio, decodificador de audio, método para codificar una señal de audio y método para decodificar una señal de audio codificada
ARP210101477A AR122486A2 (es) 2015-03-09 2021-05-31 Decodificador de audio, codificador de audio, método para codificar una señal de audio y método para decodificar una señal de audio codificada
ARP210101476A AR122219A2 (es) 2015-03-09 2021-05-31 Decodificador de audio, codificador de audio, método para codificar una señal de audio y método para decodificar una señal de audio codificada
ARP210101479A AR122488A2 (es) 2015-03-09 2021-05-31 Decodificador de audio, codificador de audio, método para codificar una señal de audio y método para decodificar una señal de audio codificada
ARP210101478A AR122487A2 (es) 2015-03-09 2021-05-31 Decodificador de audio, codificador de audio, método para codificar una señal de audio y método para decodificar una señal de audio codificada
ARP210101480A AR122489A2 (es) 2015-03-09 2021-05-31 Decodificador de audio, codificador de audio, método para codificar una señal de audio y método para decodificar una señal de audio codificada

Family Applications Before (1)

Application Number Title Priority Date Filing Date
ARP160100621A AR103890A1 (es) 2015-03-09 2016-03-09 Codificador de audio, decodificador de audio, método para codificar una señal de audio y método para decodificar una señal de audio codificada

Family Applications After (4)

Application Number Title Priority Date Filing Date
ARP210101476A AR122219A2 (es) 2015-03-09 2021-05-31 Decodificador de audio, codificador de audio, método para codificar una señal de audio y método para decodificar una señal de audio codificada
ARP210101479A AR122488A2 (es) 2015-03-09 2021-05-31 Decodificador de audio, codificador de audio, método para codificar una señal de audio y método para decodificar una señal de audio codificada
ARP210101478A AR122487A2 (es) 2015-03-09 2021-05-31 Decodificador de audio, codificador de audio, método para codificar una señal de audio y método para decodificar una señal de audio codificada
ARP210101480A AR122489A2 (es) 2015-03-09 2021-05-31 Decodificador de audio, codificador de audio, método para codificar una señal de audio y método para decodificar una señal de audio codificada

Country Status (19)

Country Link
US (3) US10600428B2 (es)
EP (3) EP3373298B1 (es)
JP (4) JP6666356B2 (es)
KR (1) KR102151728B1 (es)
CN (3) CN107533847B (es)
AR (6) AR103890A1 (es)
AU (5) AU2016231220B2 (es)
BR (1) BR112017019185B1 (es)
CA (1) CA2978815C (es)
ES (2) ES2972504T3 (es)
MX (1) MX365267B (es)
MY (1) MY181486A (es)
PL (2) PL3373298T3 (es)
PT (1) PT3268960T (es)
RU (1) RU2707151C2 (es)
SG (1) SG11201707349WA (es)
TW (1) TWI613644B (es)
WO (1) WO2016142002A1 (es)
ZA (6) ZA201706604B (es)

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