AR097966A2 - Proveedor de señal de activación de distorsión de tiempo, codificador de audio y método para codificar una señal de audio y método para aportar una señal de activación de distorsión de tiempo - Google Patents

Proveedor de señal de activación de distorsión de tiempo, codificador de audio y método para codificar una señal de audio y método para aportar una señal de activación de distorsión de tiempo

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Publication number
AR097966A2
AR097966A2 ARP140103754A ARP140103754A AR097966A2 AR 097966 A2 AR097966 A2 AR 097966A2 AR P140103754 A ARP140103754 A AR P140103754A AR P140103754 A ARP140103754 A AR P140103754A AR 097966 A2 AR097966 A2 AR 097966A2
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AR
Argentina
Prior art keywords
time distortion
activation signal
audio
signal
energy compaction
Prior art date
Application number
ARP140103754A
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English (en)
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Fraunhofer Ges Forschung
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Application filed by Fraunhofer Ges Forschung filed Critical Fraunhofer Ges Forschung
Publication of AR097966A2 publication Critical patent/AR097966A2/es

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    • 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
    • G10L19/002—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
    • G10L19/022—Blocking, i.e. grouping of samples in time; Choice of analysis windows; Overlap factoring
    • 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
    • G10L19/03—Spectral prediction for preventing pre-echo; Temporary noise shaping [TNS], e.g. in MPEG2 or MPEG4
    • 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
    • G10L19/265—Pre-filtering, e.g. high frequency emphasis prior to 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
    • G10L21/04—Time compression or expansion
    • G10L21/043—Time compression or expansion by changing speed
    • 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
    • G10L25/90—Pitch determination of speech signals
    • 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
    • G10L19/022—Blocking, i.e. grouping of samples in time; Choice of analysis windows; Overlap factoring
    • G10L19/025—Detection of transients or attacks for time/frequency resolution switching
    • 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
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/10—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a multipulse excitation
    • 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
    • G10L21/04—Time compression or expansion
    • 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
    • G10L25/78—Detection of presence or absence of voice signals

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  • 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)
  • Spectroscopy & Molecular Physics (AREA)
  • Quality & Reliability (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)

Abstract

Un proveedor de señal de activación de distorsión de tiempo (100; 230; 234) para aportar una señal de activación de distorsión de tiempo (112; 232; 234p) sobre la base de una representación (110; 234e; 234k) de una señal de audio, en donde el proveedor de la señal de activación de distorsión de tiempo comprende un proveedor de información de compactación de energía (120; 234f; 234I; 325; 370) configurado para proveer una información de compactación de energía (122; 234m; 234n; 326; 374) que describe una compactación de energía en una representación del espectro transformado por Ia distorsión de tiempo (222) de la señal de audio; y un comparador (130; 234o) configurado para comparar la información de compactación de energía (122; 234m; 234n; 326; 374) con un valor de referencia, y proveer Ia señal de activación de distorsión de tiempo (112; 232; 234p) con dependencia de un resultado de la comparación; en donde el proveedor de información de compactación de energía (120; 234f; 234I) está configurado para proveer una medida de planicidad espectral que describe la representación del espectro transformado por la distorsión de tiempo (234e; 234k) de la señal de audio como la información de compactación de energía (122; 234m; 234n); y en donde el proveedor de información de compactación de energía (120; 234f; 234I) está configurado para computar un cociente de una media aritmética del espectro de potencia de transformación de la distorsión de tiempo (234e; 234k) de Ia señal de audio y una media aritmética del espectro de potencia de transformación de la distorsión de tiempo (234e; 234k) de la señal de audio para obtener la medida de planicidad espectral.
ARP140103754A 2008-07-11 2014-10-08 Proveedor de señal de activación de distorsión de tiempo, codificador de audio y método para codificar una señal de audio y método para aportar una señal de activación de distorsión de tiempo AR097966A2 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US7987308P 2008-07-11 2008-07-11

Publications (1)

Publication Number Publication Date
AR097966A2 true AR097966A2 (es) 2016-04-20

Family

ID=41037694

Family Applications (8)

Application Number Title Priority Date Filing Date
ARP090102631A AR072740A1 (es) 2008-07-11 2009-07-13 Proveedor de la senal de activacion de distorsion de tiempo codificador de senal de audio, metodo para proveer una senal de activacion de distorsion de tiempo metodo para codificar una senal de audio y programas de computacion
ARP140103755A AR097967A2 (es) 2008-07-11 2014-10-08 Codificador de audio y método para codificar una señal de audio
ARP140103757A AR097969A2 (es) 2008-07-11 2014-10-08 Codificador de audio y método para codificar una señal de audio
ARP140103753A AR097965A2 (es) 2008-07-11 2014-10-08 Proveedor de señal de activación de distorsión de tiempo, codificador de audio y método para codificar una señal de audio y método para aportar una señal de activación de distorsión de tiempo
ARP140103756A AR097968A2 (es) 2008-07-11 2014-10-08 Codificador de audio y método para codificar una señal de audio
ARP140103754A AR097966A2 (es) 2008-07-11 2014-10-08 Proveedor de señal de activación de distorsión de tiempo, codificador de audio y método para codificar una señal de audio y método para aportar una señal de activación de distorsión de tiempo
ARP140103758A AR097970A2 (es) 2008-07-11 2014-10-08 Codificador de audio y método para codificar una señal de audio
ARP190102320A AR116330A2 (es) 2008-07-11 2019-08-14 Codificador de audio y método para codificar una señal de audio

Family Applications Before (5)

Application Number Title Priority Date Filing Date
ARP090102631A AR072740A1 (es) 2008-07-11 2009-07-13 Proveedor de la senal de activacion de distorsion de tiempo codificador de senal de audio, metodo para proveer una senal de activacion de distorsion de tiempo metodo para codificar una senal de audio y programas de computacion
ARP140103755A AR097967A2 (es) 2008-07-11 2014-10-08 Codificador de audio y método para codificar una señal de audio
ARP140103757A AR097969A2 (es) 2008-07-11 2014-10-08 Codificador de audio y método para codificar una señal de audio
ARP140103753A AR097965A2 (es) 2008-07-11 2014-10-08 Proveedor de señal de activación de distorsión de tiempo, codificador de audio y método para codificar una señal de audio y método para aportar una señal de activación de distorsión de tiempo
ARP140103756A AR097968A2 (es) 2008-07-11 2014-10-08 Codificador de audio y método para codificar una señal de audio

Family Applications After (2)

Application Number Title Priority Date Filing Date
ARP140103758A AR097970A2 (es) 2008-07-11 2014-10-08 Codificador de audio y método para codificar una señal de audio
ARP190102320A AR116330A2 (es) 2008-07-11 2019-08-14 Codificador de audio y método para codificar una señal de audio

Country Status (17)

Country Link
US (7) US9015041B2 (es)
EP (5) EP2410522B1 (es)
JP (5) JP5538382B2 (es)
KR (5) KR101400535B1 (es)
CN (5) CN103000178B (es)
AR (8) AR072740A1 (es)
AT (1) ATE539433T1 (es)
AU (1) AU2009267433B2 (es)
CA (5) CA2836863C (es)
ES (5) ES2654432T3 (es)
HK (5) HK1155551A1 (es)
MX (1) MX2011000368A (es)
PL (4) PL2410521T3 (es)
PT (3) PT2410521T (es)
RU (5) RU2589309C2 (es)
TW (1) TWI463484B (es)
WO (1) WO2010003618A2 (es)

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JP5567191B2 (ja) 2014-08-06
RU2012150076A (ru) 2014-05-27
KR101400513B1 (ko) 2014-05-28
AR097970A2 (es) 2016-04-20
ES2379761T3 (es) 2012-05-03
MX2011000368A (es) 2011-03-02
US20110178795A1 (en) 2011-07-21
JP5591386B2 (ja) 2014-09-17
US9646632B2 (en) 2017-05-09
PT2410522T (pt) 2018-01-09
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CN103000177B (zh) 2015-03-25
AR097968A2 (es) 2016-04-20

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