AR100848A1 - Ajuste de ganancia temporal en base una característica de señal de banda alta - Google Patents

Ajuste de ganancia temporal en base una característica de señal de banda alta

Info

Publication number
AR100848A1
AR100848A1 ARP150101905A ARP150101905A AR100848A1 AR 100848 A1 AR100848 A1 AR 100848A1 AR P150101905 A ARP150101905 A AR P150101905A AR P150101905 A ARP150101905 A AR P150101905A AR 100848 A1 AR100848 A1 AR 100848A1
Authority
AR
Argentina
Prior art keywords
gain
high band
band signal
gain adjustment
adjustment based
Prior art date
Application number
ARP150101905A
Other languages
English (en)
Inventor
Shaminda SUBASINGHA Subasingha
Subrahmanyam Chandra Sekhar Chebiyyam Venkata
Rajendran Vivek
Krishnan Venkatesh
S Atti Venkatraman
Original Assignee
Qualcomm Inc
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 Qualcomm Inc filed Critical Qualcomm Inc
Publication of AR100848A1 publication Critical patent/AR100848A1/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
    • G10L19/04—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
    • G10L19/12—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] 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
    • G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients
    • 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
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • G10L19/24—Variable rate codecs, e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered 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
    • G10L21/02—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
    • G10L21/0224—Processing in the time domain
    • 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
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading techniques
    • 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
    • G10L25/12—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 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
    • G10L2019/0001—Codebooks
    • G10L2019/0016—Codebook for LPC parameters

Landscapes

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

Abstract

Técnicas para ajustar un parámetro de ganancia temporal y para ajustar coeficientes de predicción lineales. Un valor del parámetro de ganancia temporal puede ser en base a una comparación entre una porción de banda alta sintetizada de una señal de audio con una porción de banda alta de la señal de audio. Si una característica de señal de un rango de frecuencia superior de la porción de banda alta satisface un primer umbral, el parámetro de ganancia temporal puede ajustarse. Una ganancia lineal de predicción (LP) puede determinarse en base a una operación de ganancia LP que utiliza un primer valor para un orden LP. La ganancia LP puede estar asociada con un nivel de energía de un filtro de síntesis de LP. El orden LP puede reducirse si la ganancia LP satisface un segundo umbral.
ARP150101905A 2014-06-26 2015-06-15 Ajuste de ganancia temporal en base una característica de señal de banda alta AR100848A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US201462017790P 2014-06-26 2014-06-26

Publications (1)

Publication Number Publication Date
AR100848A1 true AR100848A1 (es) 2016-11-02

Family

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Family Applications (2)

Application Number Title Priority Date Filing Date
ARP150101904A AR100847A1 (es) 2014-06-26 2015-06-15 Ajuste de ganancia temporal en base una característica de señal de banda alta
ARP150101905A AR100848A1 (es) 2014-06-26 2015-06-15 Ajuste de ganancia temporal en base una característica de señal de banda alta

Family Applications Before (1)

Application Number Title Priority Date Filing Date
ARP150101904A AR100847A1 (es) 2014-06-26 2015-06-15 Ajuste de ganancia temporal en base una característica de señal de banda alta

Country Status (12)

Country Link
US (2) US9583115B2 (es)
EP (2) EP3161825B1 (es)
JP (2) JP6196004B2 (es)
KR (2) KR101809866B1 (es)
CN (2) CN106463136B (es)
AR (2) AR100847A1 (es)
BR (1) BR112016030384B1 (es)
CA (2) CA2952006C (es)
ES (2) ES2690251T3 (es)
HU (2) HUE039281T2 (es)
TW (2) TW201606758A (es)
WO (2) WO2015199954A1 (es)

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US9583115B2 (en) * 2014-06-26 2017-02-28 Qualcomm Incorporated Temporal gain adjustment based on high-band signal characteristic
EP2980795A1 (en) 2014-07-28 2016-02-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio encoding and decoding using a frequency domain processor, a time domain processor and a cross processor for initialization of the time domain processor
EP2980794A1 (en) 2014-07-28 2016-02-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio encoder and decoder using a frequency domain processor and a time domain processor
US10109284B2 (en) * 2016-02-12 2018-10-23 Qualcomm Incorporated Inter-channel encoding and decoding of multiple high-band audio signals
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US10825467B2 (en) * 2017-04-21 2020-11-03 Qualcomm Incorporated Non-harmonic speech detection and bandwidth extension in a multi-source environment
US10891960B2 (en) * 2017-09-11 2021-01-12 Qualcomm Incorproated Temporal offset estimation
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Also Published As

Publication number Publication date
KR101809866B1 (ko) 2017-12-15
CA2952006A1 (en) 2015-12-30
EP3161825A1 (en) 2017-05-03
JP6312868B2 (ja) 2018-04-18
KR101849871B1 (ko) 2018-04-17
US9626983B2 (en) 2017-04-18
CA2952006C (en) 2019-05-21
HUE039281T2 (hu) 2018-12-28
US9583115B2 (en) 2017-02-28
EP3161823A1 (en) 2017-05-03
CN106663440A (zh) 2017-05-10
ES2690251T3 (es) 2018-11-20
WO2015199955A1 (en) 2015-12-30
CA2952214A1 (en) 2015-12-30
TW201604865A (zh) 2016-02-01
AR100847A1 (es) 2016-11-02
CA2952214C (en) 2020-06-16
WO2015199954A1 (en) 2015-12-30
KR20170023007A (ko) 2017-03-02
EP3161823B1 (en) 2018-07-18
CN106463136B (zh) 2018-05-08
ES2690252T3 (es) 2018-11-20
US20150380007A1 (en) 2015-12-31
JP2017523460A (ja) 2017-08-17
JP2017524980A (ja) 2017-08-31
KR20170023851A (ko) 2017-03-06
BR112016030384B1 (pt) 2023-04-04
JP6196004B2 (ja) 2017-09-13
CN106663440B (zh) 2018-05-08
BR112016030384A2 (es) 2017-08-22
HUE039698T2 (hu) 2019-01-28
EP3161825B1 (en) 2018-07-18
TWI598873B (zh) 2017-09-11
US20150380006A1 (en) 2015-12-31
TW201606758A (zh) 2016-02-16
CN106463136A (zh) 2017-02-22

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