MX2019012777A - Metodo y aparato de codificacion de audio. - Google Patents

Metodo y aparato de codificacion de audio.

Info

Publication number
MX2019012777A
MX2019012777A MX2019012777A MX2019012777A MX2019012777A MX 2019012777 A MX2019012777 A MX 2019012777A MX 2019012777 A MX2019012777 A MX 2019012777A MX 2019012777 A MX2019012777 A MX 2019012777A MX 2019012777 A MX2019012777 A MX 2019012777A
Authority
MX
Mexico
Prior art keywords
region
band
energy
audio signal
segment
Prior art date
Application number
MX2019012777A
Other languages
English (en)
Inventor
Norvell Erik
Grancharov Volodya
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of MX2019012777A publication Critical patent/MX2019012777A/es

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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
    • G10L19/028—Noise substitution, i.e. substituting non-tonal spectral components by noisy source
    • 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
    • G10L19/0204—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 using subband decomposition
    • 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
    • G10L19/038—Vector quantisation, e.g. TwinVQ audio
    • 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
    • G10L25/21—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 power information
    • 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
    • G10L25/48—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use
    • G10L25/51—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use for comparison or discrimination
    • 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
    • G10L19/04—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
    • G10L25/06—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 correlation coefficients

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)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Telephone Function (AREA)

Abstract

Codificador y método del mismo para codificar una señal de audio, donde un espectro de frecuencia de la señal de audio se divide en una primera y una segunda región, donde al menos la segunda región comprende un número de bandas. Además, los picos espectrales en la primera región se codifican por un primer método de codificación. El método proporcionado en la presente comprende: para un segmento de la señal de audio: determinar una relación entre una energía de una banda en la segunda región y un cálculo de energía de la primera región. El método además comprende determinar una relación entre la energía de la banda en la segunda región y una energía de bandas vecinas en la segunda región. El método además comprende determinar si un número de bits disponible es suficiente para codificar al menos un segmento que no es pico de la primera región y la banda en la segunda región. Además, cuando las relaciones cumplen un criterio respectivo predeterminado y el número de bits es suficiente, la banda en la segunda región y al menos un segmento de la primera región se codifican al utilizar un segundo método de codificación. Por el contrario, la banda en la segunda región de hecho se somete a BWE o relleno de ruido.
MX2019012777A 2014-03-14 2016-09-02 Metodo y aparato de codificacion de audio. MX2019012777A (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US201461953331P 2014-03-14 2014-03-14

Publications (1)

Publication Number Publication Date
MX2019012777A true MX2019012777A (es) 2020-01-20

Family

ID=52697386

Family Applications (3)

Application Number Title Priority Date Filing Date
MX2016011328A MX353200B (es) 2014-03-14 2015-03-13 Método y aparato de codificación de audio.
MX2018000022A MX369614B (es) 2014-03-14 2015-03-13 Metodo y aparato de codificacion de audio.
MX2019012777A MX2019012777A (es) 2014-03-14 2016-09-02 Metodo y aparato de codificacion de audio.

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MX2016011328A MX353200B (es) 2014-03-14 2015-03-13 Método y aparato de codificación de audio.
MX2018000022A MX369614B (es) 2014-03-14 2015-03-13 Metodo y aparato de codificacion de audio.

Country Status (12)

Country Link
US (4) US9741349B2 (es)
EP (3) EP3117432B1 (es)
CN (3) CN106104685B (es)
AR (2) AR099761A1 (es)
BR (1) BR112016020988B1 (es)
DK (1) DK3518237T3 (es)
ES (2) ES2741506T3 (es)
IL (3) IL247337A0 (es)
MX (3) MX353200B (es)
PL (1) PL3117432T3 (es)
TR (1) TR201907596T4 (es)
WO (1) WO2015136078A1 (es)

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AR110293A2 (es) 2019-03-13
CN110619884B (zh) 2023-03-07
BR112016020988A8 (pt) 2021-07-06
US20200126573A1 (en) 2020-04-23
BR112016020988B1 (pt) 2022-08-30
IL268543A (en) 2019-09-26
IL265424A (en) 2019-05-30
US20160254004A1 (en) 2016-09-01
EP3117432A1 (en) 2017-01-18
CN106104685B (zh) 2019-12-03
MX369614B (es) 2019-11-14
US9741349B2 (en) 2017-08-22
EP4109445A1 (en) 2022-12-28
ES2930366T3 (es) 2022-12-09
IL268543B (en) 2020-02-27
IL247337A0 (en) 2016-09-29
MX2016011328A (es) 2016-11-08
US10147435B2 (en) 2018-12-04
EP3518237B1 (en) 2022-09-07
ES2741506T3 (es) 2020-02-11
CN110808056A (zh) 2020-02-18
US20190057707A1 (en) 2019-02-21
TR201907596T4 (tr) 2019-06-21
CN110619884A (zh) 2019-12-27
DK3518237T3 (da) 2022-10-03
CN106104685A (zh) 2016-11-09
BR112016020988A2 (pt) 2017-08-15
MX353200B (es) 2018-01-05
EP3117432B1 (en) 2019-05-08
US10553227B2 (en) 2020-02-04
IL265424B (en) 2019-08-29
AR099761A1 (es) 2016-08-17
WO2015136078A1 (en) 2015-09-17
US20170316788A1 (en) 2017-11-02
PL3117432T3 (pl) 2019-10-31
EP3518237A1 (en) 2019-07-31
CN110808056B (zh) 2023-10-17

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