AR097444A1 - Aparato y método para procesar una señal de audio empleando una señal de error de efecto aliasing - Google Patents

Aparato y método para procesar una señal de audio empleando una señal de error de efecto aliasing

Info

Publication number
AR097444A1
AR097444A1 ARP140103180A ARP140103180A AR097444A1 AR 097444 A1 AR097444 A1 AR 097444A1 AR P140103180 A ARP140103180 A AR P140103180A AR P140103180 A ARP140103180 A AR P140103180A AR 097444 A1 AR097444 A1 AR 097444A1
Authority
AR
Argentina
Prior art keywords
aliasing
signal
processing
block
affected
Prior art date
Application number
ARP140103180A
Other languages
English (en)
Original Assignee
Fraunhofer Ges Forschung
Friedrich-Alexander-Universitaet Erlangen-Nuernberg
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, Friedrich-Alexander-Universitaet Erlangen-Nuernberg filed Critical Fraunhofer Ges Forschung
Publication of AR097444A1 publication Critical patent/AR097444A1/es

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
    • G06F17/10—Complex mathematical operations
    • G06F17/14—Fourier, Walsh or analogous domain transformations, e.g. Laplace, Hilbert, Karhunen-Loeve, transforms
    • G06F17/147—Discrete orthonormal transforms, e.g. discrete cosine transform, discrete sine transform, and variations therefrom, e.g. modified discrete cosine transform, integer transforms approximating the discrete cosine transform
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Processing of the speech or voice signal 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

Abstract

Un aparato para procesar una señal de audio que comprende una secuencia de bloques de valores espectrales, comprende: un procesador (150) para calcular una serial afectada por aliasing (154) utilizando por lo menos un primer valor de modificación (102) para un primer bloque de la secuencia de bloques y utilizando por lo menos un segundo valor de modificación diferente (106) para un segundo bloque de la secuencia de bloques y para estimar una señal de error de aliasing (158) que representa un error de aliasing en la señal afectada por aliasing (154); y un combinador (152) para combinar la señal afectada por aliasing (154) y la señal de error de aliasing (158) de tal manera que una señal procesada obtenida por la combinación sea una señal con efecto aliasing reducido o sin efecto aliasing (112).
ARP140103180A 2013-08-23 2014-08-25 Aparato y método para procesar una señal de audio empleando una señal de error de efecto aliasing AR097444A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13181507 2013-08-23

Publications (1)

Publication Number Publication Date
AR097444A1 true AR097444A1 (es) 2016-03-16

Family

ID=51392261

Family Applications (2)

Application Number Title Priority Date Filing Date
ARP140103180A AR097444A1 (es) 2013-08-23 2014-08-25 Aparato y método para procesar una señal de audio empleando una señal de error de efecto aliasing
ARP140103179A AR097443A1 (es) 2013-08-23 2014-08-25 Aparato y método para procesar una señal de audio empleando una combinación en un margen de solapamiento

Family Applications After (1)

Application Number Title Priority Date Filing Date
ARP140103179A AR097443A1 (es) 2013-08-23 2014-08-25 Aparato y método para procesar una señal de audio empleando una combinación en un margen de solapamiento

Country Status (18)

Country Link
US (2) US10210879B2 (es)
EP (2) EP3028275B1 (es)
JP (2) JP6286552B2 (es)
KR (2) KR101820028B1 (es)
CN (2) CN105556600B (es)
AR (2) AR097444A1 (es)
AU (2) AU2014310547B2 (es)
BR (1) BR112016003029B1 (es)
CA (2) CA2921192C (es)
ES (2) ES2650117T3 (es)
MX (2) MX352576B (es)
MY (2) MY184723A (es)
PL (1) PL3028275T3 (es)
PT (1) PT3028275T (es)
RU (2) RU2641253C2 (es)
SG (2) SG11201601298WA (es)
TW (2) TWI570708B (es)
WO (2) WO2015025051A1 (es)

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ES2930103T3 (es) * 2010-07-08 2022-12-05 Fraunhofer Ges Forschung Codificador que utiliza cancelación del efecto de solapamiento hacia delante
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KR101424372B1 (ko) * 2011-02-14 2014-08-01 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. 랩핑 변환을 이용한 정보 신호 표현

Also Published As

Publication number Publication date
CA2921195C (en) 2018-07-17
CA2921192C (en) 2019-04-30
CN105556601A (zh) 2016-05-04
JP6333379B2 (ja) 2018-05-30
TW201523592A (zh) 2015-06-16
KR20160045821A (ko) 2016-04-27
RU2016110408A (ru) 2017-09-28
PT3028275T (pt) 2017-11-21
SG11201601032RA (en) 2016-03-30
RU2016110398A (ru) 2017-09-28
EP3028275A1 (en) 2016-06-08
EP3036738A1 (en) 2016-06-29
BR112016003029B1 (pt) 2023-04-04
ES2650117T3 (es) 2018-01-17
TWI570709B (zh) 2017-02-11
TW201523593A (zh) 2015-06-16
CN105556601B (zh) 2019-10-11
CA2921195A1 (en) 2015-02-26
KR20160045822A (ko) 2016-04-27
KR101820028B1 (ko) 2018-02-28
ES2693559T3 (es) 2018-12-12
JP2016528562A (ja) 2016-09-15
EP3028275B1 (en) 2017-09-13
JP2016532157A (ja) 2016-10-13
US20160163324A1 (en) 2016-06-09
MX2016001961A (es) 2016-06-02
JP6286552B2 (ja) 2018-02-28
US10210879B2 (en) 2019-02-19
MX352576B (es) 2017-11-29
AU2014310548A1 (en) 2016-04-07
EP3036738B1 (en) 2018-07-18
AU2014310547B2 (en) 2017-01-12
RU2641253C2 (ru) 2018-01-16
PL3028275T3 (pl) 2018-02-28
RU2643662C2 (ru) 2018-02-02
AU2014310548B2 (en) 2017-04-20
BR112016003029A2 (pt) 2017-09-12
AR097443A1 (es) 2016-03-16
US10157624B2 (en) 2018-12-18
CA2921192A1 (en) 2015-02-26
CN105556600B (zh) 2019-11-26
TWI570708B (zh) 2017-02-11
WO2015025052A1 (en) 2015-02-26
MY175355A (en) 2020-06-22
AU2014310547A1 (en) 2016-04-07
US20160163323A1 (en) 2016-06-09
MX2016001856A (es) 2016-05-16
MY184723A (en) 2021-04-19
SG11201601298WA (en) 2016-03-30
WO2015025051A1 (en) 2015-02-26
KR101831286B1 (ko) 2018-02-22
MX354372B (es) 2018-02-28
CN105556600A (zh) 2016-05-04

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