MX2017000805A - Estimacion del ruido de fondo en señales de audio. - Google Patents

Estimacion del ruido de fondo en señales de audio.

Info

Publication number
MX2017000805A
MX2017000805A MX2017000805A MX2017000805A MX2017000805A MX 2017000805 A MX2017000805 A MX 2017000805A MX 2017000805 A MX2017000805 A MX 2017000805A MX 2017000805 A MX2017000805 A MX 2017000805A MX 2017000805 A MX2017000805 A MX 2017000805A
Authority
MX
Mexico
Prior art keywords
audio signal
linear prediction
background noise
signal segment
estimation
Prior art date
Application number
MX2017000805A
Other languages
English (en)
Other versions
MX365694B (es
Inventor
Sehlstedt Martin
Original Assignee
ERICSSON TELEFON AB L M (publ)
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 (publ) filed Critical ERICSSON TELEFON AB L M (publ)
Publication of MX2017000805A publication Critical patent/MX2017000805A/es
Publication of MX365694B publication Critical patent/MX365694B/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
    • G10L19/0204—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
    • G10L19/0208—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
    • 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
    • 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
    • G10L19/04—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
    • 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
    • G10L21/0208—Noise filtering
    • G10L21/0216—Noise filtering characterised by the method used for estimating noise
    • 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
    • G10L21/0316—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude
    • G10L21/0324—Details of processing therefor
    • 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
    • G10L21/0388—Details of processing therefor
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G10L25/12—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 prediction coefficients
    • 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
    • G10L19/012—Comfort noise or silence coding

Abstract

La invención se refiere a un estimador de ruido de fondo y un método en el mismo, para la estimación del ruido de fondo en una señal de audio. El método comprende obtener al menos un parámetro asociado con un segmento de señal de audio, tal como un cuadro o parte de un cuadro, sobre la base de una primera ganancia de predicción lineal, calculada como un cociente entre una señal residual a partir de una predicción lineal de orden O y una señal residual a partir de una predicción lineal de segundo orden para el segmento de señal de audio; y una segunda ganancia de predicción lineal calculada como un cociente entre una señal residual a partir de una predicción lineal de segundo orden y una señal residual a partir de una predicción lineal de orden 16 para el segmento de señal de audio. El método comprende además determinar sí el segmento de señal de audio que comprende una pausa basada al menos en el obtenido al menos un parámetro; y, actualizar una estimación de ruido de fondo basada en el segmento de señal de audio cuando el segmento de señal de audio comprende una pausa.
MX2017000805A 2014-07-29 2015-07-01 Estimacion del ruido de fondo en señales de audio. MX365694B (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201462030121P 2014-07-29 2014-07-29
PCT/SE2015/050770 WO2016018186A1 (en) 2014-07-29 2015-07-01 Estimation of background noise in audio signals

Publications (2)

Publication Number Publication Date
MX2017000805A true MX2017000805A (es) 2017-05-04
MX365694B MX365694B (es) 2019-06-11

Family

ID=53682771

Family Applications (3)

Application Number Title Priority Date Filing Date
MX2017000805A MX365694B (es) 2014-07-29 2015-07-01 Estimacion del ruido de fondo en señales de audio.
MX2021010373A MX2021010373A (es) 2014-07-29 2015-07-01 Estimación del ruido de fondo en las señales de audio.
MX2019005799A MX2019005799A (es) 2014-07-29 2017-01-18 Estimacion del ruido de fondo en las señales de audio.

Family Applications After (2)

Application Number Title Priority Date Filing Date
MX2021010373A MX2021010373A (es) 2014-07-29 2015-07-01 Estimación del ruido de fondo en las señales de audio.
MX2019005799A MX2019005799A (es) 2014-07-29 2017-01-18 Estimacion del ruido de fondo en las señales de audio.

Country Status (19)

Country Link
US (5) US9870780B2 (es)
EP (3) EP3175458B1 (es)
JP (3) JP6208377B2 (es)
KR (3) KR102267986B1 (es)
CN (3) CN112927725A (es)
BR (1) BR112017001643B1 (es)
CA (1) CA2956531C (es)
DK (1) DK3582221T3 (es)
ES (3) ES2664348T3 (es)
HU (1) HUE037050T2 (es)
MX (3) MX365694B (es)
MY (1) MY178131A (es)
NZ (1) NZ728080A (es)
PH (1) PH12017500031A1 (es)
PL (2) PL3309784T3 (es)
PT (1) PT3309784T (es)
RU (3) RU2713852C2 (es)
WO (1) WO2016018186A1 (es)
ZA (2) ZA201708141B (es)

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Publication number Publication date
CA2956531A1 (en) 2016-02-04
KR102267986B1 (ko) 2021-06-22
KR101895391B1 (ko) 2018-09-07
ES2664348T3 (es) 2018-04-19
JP6208377B2 (ja) 2017-10-04
PL3582221T3 (pl) 2021-07-26
KR20170026545A (ko) 2017-03-08
ES2869141T3 (es) 2021-10-25
RU2665916C2 (ru) 2018-09-04
JP6788086B2 (ja) 2020-11-18
US20170069331A1 (en) 2017-03-09
RU2020100879A (ru) 2021-07-14
ZA201903140B (en) 2020-09-30
MY178131A (en) 2020-10-05
CA2956531C (en) 2020-03-24
HUE037050T2 (hu) 2018-08-28
JP2018041083A (ja) 2018-03-15
PH12017500031A1 (en) 2017-05-15
NZ728080A (en) 2018-08-31
MX2019005799A (es) 2019-08-12
NZ743390A (en) 2021-03-26
MX2021010373A (es) 2023-01-18
CN106575511A (zh) 2017-04-19
PL3309784T3 (pl) 2020-02-28
BR112017001643A2 (pt) 2018-01-30
CN112927725A (zh) 2021-06-08
KR20180100452A (ko) 2018-09-10
RU2760346C2 (ru) 2021-11-24
RU2018129139A (ru) 2019-03-14
US20190267017A1 (en) 2019-08-29
JP2017515138A (ja) 2017-06-08
EP3175458B1 (en) 2017-12-27
US20180158465A1 (en) 2018-06-07
ZA201708141B (en) 2019-09-25
CN112927724B (zh) 2024-03-22
ES2758517T3 (es) 2020-05-05
DK3582221T3 (da) 2021-04-19
CN106575511B (zh) 2021-02-23
US10347265B2 (en) 2019-07-09
EP3582221B1 (en) 2021-02-24
EP3309784B1 (en) 2019-09-04
RU2020100879A3 (es) 2021-10-13
US11114105B2 (en) 2021-09-07
RU2018129139A3 (es) 2019-12-20
RU2017106163A3 (es) 2018-08-28
EP3309784A1 (en) 2018-04-18
WO2016018186A1 (en) 2016-02-04
EP3582221A1 (en) 2019-12-18
MX365694B (es) 2019-06-11
KR102012325B1 (ko) 2019-08-20
EP3175458A1 (en) 2017-06-07
BR112017001643B1 (pt) 2021-01-12
CN112927724A (zh) 2021-06-08
JP2020024435A (ja) 2020-02-13
PT3309784T (pt) 2019-11-21
RU2713852C2 (ru) 2020-02-07
US20230215447A1 (en) 2023-07-06
US20210366496A1 (en) 2021-11-25
US11636865B2 (en) 2023-04-25
KR20190097321A (ko) 2019-08-20
JP6600337B2 (ja) 2019-10-30
US9870780B2 (en) 2018-01-16
RU2017106163A (ru) 2018-08-28

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