AR095087A1 - Cuantificación de señales de audio adaptables por tonalidad de baja complejidad - Google Patents

Cuantificación de señales de audio adaptables por tonalidad de baja complejidad

Info

Publication number
AR095087A1
AR095087A1 ARP140100300A ARP140100300A AR095087A1 AR 095087 A1 AR095087 A1 AR 095087A1 AR P140100300 A ARP140100300 A AR P140100300A AR P140100300 A ARP140100300 A AR P140100300A AR 095087 A1 AR095087 A1 AR 095087A1
Authority
AR
Argentina
Prior art keywords
spectrum
hue
control device
dead zone
spectral
Prior art date
Application number
ARP140100300A
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 AR095087A1 publication Critical patent/AR095087A1/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
    • G10L19/02—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
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H1/00—Details of electrophonic musical instruments
    • G10H1/02—Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos
    • G10H1/06—Circuits for establishing the harmonic content of tones, or other arrangements for changing the tone colour
    • 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
    • G10L19/0212—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 orthogonal transformation
    • 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
    • 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
    • G10L25/45—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of analysis window
    • 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
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H2210/00—Aspects or methods of musical processing having intrinsic musical character, i.e. involving musical theory or musical parameters or relying on musical knowledge, as applied in electrophonic musical tools or instruments
    • G10H2210/555—Tonality processing, involving the key in which a musical piece or melody is played
    • G10H2210/561—Changing the tonality within a musical piece
    • 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

Landscapes

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

Abstract

La presente proporciona un codificador de audio para codificar una señal de audio (AS) con el objetivo de producir a partir de ella una señal codificada (ES), el codificador de audio (1) que comprende un dispositivo de integración por marcos (2) configurado para extraer marcos (F) de la señal de audio (AS); un cuantificador (3) configurado para trazar el mapa de líneas espectrales (SL₁₋₃₂) de una señal de espectro (SPS) que deriva del marco (F) de la señal de audio (AS) a los índices de cuantificación (I₀, I₁), en donde el cuantificador (3) tiene una zona muerta (DZ), en la cual las líneas espectrales de entrada (SL) se mapean hasta el índice de cuantificación cero (I₀); y un dispositivo de control (4) configurado para modificar la zona muerta (DZ); en donde el dispositivo de control (4) comprende un dispositivo para calcular la tonalidad (5) configurado para calcular por lo menos un valor indicativo de tonalidad (TI₅₋₃₂) para por lo menos una línea de espectro (SL₁₋₃₂) o para por lo menos un grupo de líneas espectrales (SL₁₋₃₂),en donde el dispositivo de control (4) está configurado para modificar la zona muerta (DZ) para la por lo menos una línea de espectro (SL₁₋₃₂) o el por lo menos un grupo de líneas de espectro (SL₁₋₃₂) dependiendo del respectivo valor indicativo de tonalidad (TI₅₋₃₂).
ARP140100300A 2013-01-29 2014-01-29 Cuantificación de señales de audio adaptables por tonalidad de baja complejidad AR095087A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US201361758191P 2013-01-29 2013-01-29

Publications (1)

Publication Number Publication Date
AR095087A1 true AR095087A1 (es) 2015-09-30

Family

ID=50023575

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP140100300A AR095087A1 (es) 2013-01-29 2014-01-29 Cuantificación de señales de audio adaptables por tonalidad de baja complejidad

Country Status (20)

Country Link
US (3) US10468043B2 (es)
EP (1) EP2939235B1 (es)
JP (3) JP6334564B2 (es)
KR (1) KR101757341B1 (es)
CN (2) CN105103226B (es)
AR (1) AR095087A1 (es)
AU (1) AU2014211539B2 (es)
BR (1) BR112015018050B1 (es)
CA (1) CA2898789C (es)
ES (1) ES2613651T3 (es)
HK (1) HK1216263A1 (es)
MX (1) MX346732B (es)
MY (1) MY172848A (es)
PL (1) PL2939235T3 (es)
PT (1) PT2939235T (es)
RU (1) RU2621003C2 (es)
SG (1) SG11201505922XA (es)
TW (1) TWI524331B (es)
WO (1) WO2014118171A1 (es)
ZA (1) ZA201506319B (es)

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CN113539281A (zh) * 2020-04-21 2021-10-22 华为技术有限公司 音频信号编码方法和装置
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Also Published As

Publication number Publication date
JP2019164367A (ja) 2019-09-26
PL2939235T3 (pl) 2017-04-28
ES2613651T3 (es) 2017-05-25
JP6979048B2 (ja) 2021-12-08
PT2939235T (pt) 2017-02-07
JP6334564B2 (ja) 2018-05-30
US20200090671A1 (en) 2020-03-19
US11694701B2 (en) 2023-07-04
US11094332B2 (en) 2021-08-17
MX2015009753A (es) 2015-11-06
EP2939235B1 (en) 2016-11-16
KR101757341B1 (ko) 2017-07-14
CA2898789A1 (en) 2014-08-07
KR20150118954A (ko) 2015-10-23
TW201440039A (zh) 2014-10-16
CN110047499B (zh) 2023-08-29
CN110047499A (zh) 2019-07-23
US20210366499A1 (en) 2021-11-25
BR112015018050A2 (pt) 2017-07-18
JP6526091B2 (ja) 2019-06-05
CN105103226A (zh) 2015-11-25
RU2015136242A (ru) 2017-03-07
TWI524331B (zh) 2016-03-01
JP2017151454A (ja) 2017-08-31
ZA201506319B (en) 2016-07-27
MY172848A (en) 2019-12-12
MX346732B (es) 2017-03-30
WO2014118171A1 (en) 2014-08-07
EP2939235A1 (en) 2015-11-04
RU2621003C2 (ru) 2017-05-30
JP2016510426A (ja) 2016-04-07
CA2898789C (en) 2017-12-05
AU2014211539B2 (en) 2017-04-20
BR112015018050B1 (pt) 2021-02-23
SG11201505922XA (en) 2015-08-28
US20160027448A1 (en) 2016-01-28
CN105103226B (zh) 2019-04-16
AU2014211539A1 (en) 2015-09-17
US10468043B2 (en) 2019-11-05
HK1216263A1 (zh) 2016-10-28

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