MX2020005843A - Descodificacion de secuencias de bits de audio con metadatos de replicacion de banda espectral mejorada en al menos un elemento de relleno. - Google Patents

Descodificacion de secuencias de bits de audio con metadatos de replicacion de banda espectral mejorada en al menos un elemento de relleno.

Info

Publication number
MX2020005843A
MX2020005843A MX2020005843A MX2020005843A MX2020005843A MX 2020005843 A MX2020005843 A MX 2020005843A MX 2020005843 A MX2020005843 A MX 2020005843A MX 2020005843 A MX2020005843 A MX 2020005843A MX 2020005843 A MX2020005843 A MX 2020005843A
Authority
MX
Mexico
Prior art keywords
spectral band
band replication
enhanced spectral
fill element
decoding audio
Prior art date
Application number
MX2020005843A
Other languages
English (en)
Inventor
Per Ekstrand
Lars Villemoes
Heiko Purnhagen
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 MX2020005843A publication Critical patent/MX2020005843A/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
    • G10L19/167—Audio streaming, i.e. formatting and decoding of an encoded audio signal representation into a data stream for transmission or storage purposes
    • 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
    • G10L19/035—Scalar quantisation
    • 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
    • G10L19/04—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
    • G10L19/24—Variable rate codecs, e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered encoding
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Signal Processing (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Quality & Reliability (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Stereophonic System (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)

Abstract

Las modalidades se refieren a una unidad de procesamiento de audio que incluye un búfer, un desformateador de la carga útil de la secuencia de bits, y un subsistema de descodificación. El búfer almacena al menos un bloque de una secuencia de bits de audio codificada. El bloque incluye un elemento de relleno que comienza con un identificador seguido por los datos de relleno. Los datos de relleno incluyen al menos una bandera que identifica si el procesamiento de replicación de banda espectral mejorada (eSBR) va a realizarse sobre el contenido de audio del bloque. Se proporciona, además, un método correspondiente para descodificar una secuencia de bits de audio codificada.
MX2020005843A 2015-03-13 2017-09-07 Descodificacion de secuencias de bits de audio con metadatos de replicacion de banda espectral mejorada en al menos un elemento de relleno. MX2020005843A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP15159067 2015-03-13
US201562133800P 2015-03-16 2015-03-16

Publications (1)

Publication Number Publication Date
MX2020005843A true MX2020005843A (es) 2020-09-07

Family

ID=52692473

Family Applications (2)

Application Number Title Priority Date Filing Date
MX2017011490A MX2017011490A (es) 2015-03-13 2016-03-10 Descodificación de secuencias de bits de audio con metadatos de replicación de banda espectral mejorada en al menos un elemento de relleno.
MX2020005843A MX2020005843A (es) 2015-03-13 2017-09-07 Descodificacion de secuencias de bits de audio con metadatos de replicacion de banda espectral mejorada en al menos un elemento de relleno.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
MX2017011490A MX2017011490A (es) 2015-03-13 2016-03-10 Descodificación de secuencias de bits de audio con metadatos de replicación de banda espectral mejorada en al menos un elemento de relleno.

Country Status (23)

Country Link
US (12) US10262668B2 (es)
EP (10) EP3268961B1 (es)
JP (8) JP6383502B2 (es)
KR (11) KR101871643B1 (es)
CN (22) CN109461454B (es)
AR (10) AR103856A1 (es)
AU (6) AU2016233669B2 (es)
BR (9) BR122020018673B1 (es)
CA (5) CA2989595C (es)
CL (1) CL2017002268A1 (es)
DK (6) DK4198974T3 (es)
ES (4) ES2897660T3 (es)
FI (3) FI3985667T3 (es)
HU (4) HUE061857T2 (es)
IL (3) IL307827A (es)
MX (2) MX2017011490A (es)
MY (1) MY184190A (es)
PL (8) PL3657500T3 (es)
RU (4) RU2658535C1 (es)
SG (2) SG11201707459SA (es)
TW (4) TWI758146B (es)
WO (2) WO2016146492A1 (es)
ZA (4) ZA201903963B (es)

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