BRPI0607690A2 - sistemas, métodos e equipamento para geração de excitação em banda alta - Google Patents

sistemas, métodos e equipamento para geração de excitação em banda alta

Info

Publication number
BRPI0607690A2
BRPI0607690A2 BRPI0607690-4A BRPI0607690A BRPI0607690A2 BR PI0607690 A2 BRPI0607690 A2 BR PI0607690A2 BR PI0607690 A BRPI0607690 A BR PI0607690A BR PI0607690 A2 BRPI0607690 A2 BR PI0607690A2
Authority
BR
Brazil
Prior art keywords
highband
encoder
signal
narrowband
systems
Prior art date
Application number
BRPI0607690-4A
Other languages
English (en)
Inventor
Koen Bernard Vos
Kandhadai Ananthapadmanabhan A
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=36588741&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=BRPI0607690(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of BRPI0607690A2 publication Critical patent/BRPI0607690A2/pt
Publication of BRPI0607690A8 publication Critical patent/BRPI0607690A8/pt

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
    • 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
    • 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
    • G10L19/0208—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
    • 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
    • G10L21/0388—Details of processing therefor
    • 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
    • G10L19/038—Vector quantisation, e.g. TwinVQ audio
    • 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
    • G10L21/0232—Processing in the frequency 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Quality & Reliability (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Analogue/Digital Conversion (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Control Of Eletrric Generators (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Image Analysis (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Amplitude Modulation (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Ticket-Dispensing Machines (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Air Conditioning Control Device (AREA)
  • Telephonic Communication Services (AREA)
  • Filters And Equalizers (AREA)
  • Peptides Or Proteins (AREA)
  • Filtration Of Liquid (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Transmitters (AREA)

Abstract

SISTEMAS, MéTODOS E EQUIPAMENTO PARA GERAçãO DE EXCITAçãO EM BANDA ALTA. Em uma modalidade, um método de gerar um sinal de excitação em banda alta inclui estender harmonicamente o espectro de um sinal que se baseia em um sinal de excitação em banda baixa; calcular um envelope de domínio de tempo de um sinal que se baseia no sinal de excitação em banda baixa; e modular um sinal de ruído de acordo com o envelope de domínio de tempo. O método também incluí combinar (A) um sinal harmonícamente estendido com base em um resultado da extensão harmónica e (B) um sinal de ruído modulado com base em um resultado da modulação. Nesse método, o sinal de excitação em banda alta se baseia em um resultado da combinação.
BRPI0607690A 2005-04-01 2006-04-03 Sistemas, métodos e equipamento para geração de excitação em banda alta BRPI0607690A8 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US66790105P 2005-04-01 2005-04-01
US67396505P 2005-04-22 2005-04-22
PCT/US2006/012234 WO2006130221A1 (en) 2005-04-01 2006-04-03 Systems, methods, and apparatus for highband excitation generation

Publications (2)

Publication Number Publication Date
BRPI0607690A2 true BRPI0607690A2 (pt) 2009-09-22
BRPI0607690A8 BRPI0607690A8 (pt) 2017-07-11

Family

ID=36588741

Family Applications (8)

Application Number Title Priority Date Filing Date
BRPI0608270-0A BRPI0608270A2 (pt) 2005-04-01 2006-04-03 sistemas, métodos e equipamento para filtragem anti-dispersão
BRPI0608305-6A BRPI0608305B1 (pt) 2005-04-01 2006-04-03 Sistemas, métodos e equipamentos para codificação de fala em banda larga
BRPI0608306-4A BRPI0608306A2 (pt) 2005-04-01 2006-04-03 sistemas, métodos e equipamentos para supressão de rajada em banda alta
BRPI0609530-5A BRPI0609530B1 (pt) 2005-04-01 2006-04-03 métodos e equipamento para encodificar e decodificar uma porção de banda alta de um sinal de fala
BRPI0607691-2A BRPI0607691B1 (pt) 2005-04-01 2006-04-03 método e equipamento para codificação de fala em banda larga
BRPI0608269A BRPI0608269B8 (pt) 2005-04-01 2006-04-03 método e aparelho para quantização vetorial de uma representação de envelope espectral
BRPI0607646-7A BRPI0607646B1 (pt) 2005-04-01 2006-04-03 Método e equipamento para encodificação por divisão de banda de sinais de fala
BRPI0607690A BRPI0607690A8 (pt) 2005-04-01 2006-04-03 Sistemas, métodos e equipamento para geração de excitação em banda alta

Family Applications Before (7)

Application Number Title Priority Date Filing Date
BRPI0608270-0A BRPI0608270A2 (pt) 2005-04-01 2006-04-03 sistemas, métodos e equipamento para filtragem anti-dispersão
BRPI0608305-6A BRPI0608305B1 (pt) 2005-04-01 2006-04-03 Sistemas, métodos e equipamentos para codificação de fala em banda larga
BRPI0608306-4A BRPI0608306A2 (pt) 2005-04-01 2006-04-03 sistemas, métodos e equipamentos para supressão de rajada em banda alta
BRPI0609530-5A BRPI0609530B1 (pt) 2005-04-01 2006-04-03 métodos e equipamento para encodificar e decodificar uma porção de banda alta de um sinal de fala
BRPI0607691-2A BRPI0607691B1 (pt) 2005-04-01 2006-04-03 método e equipamento para codificação de fala em banda larga
BRPI0608269A BRPI0608269B8 (pt) 2005-04-01 2006-04-03 método e aparelho para quantização vetorial de uma representação de envelope espectral
BRPI0607646-7A BRPI0607646B1 (pt) 2005-04-01 2006-04-03 Método e equipamento para encodificação por divisão de banda de sinais de fala

Country Status (23)

Country Link
US (8) US8078474B2 (pt)
EP (8) EP1864101B1 (pt)
JP (8) JP5129115B2 (pt)
KR (8) KR100956876B1 (pt)
CN (1) CN102411935B (pt)
AT (4) ATE482449T1 (pt)
AU (8) AU2006232363B2 (pt)
BR (8) BRPI0608270A2 (pt)
CA (8) CA2603255C (pt)
DE (4) DE602006012637D1 (pt)
DK (2) DK1864101T3 (pt)
ES (3) ES2340608T3 (pt)
IL (8) IL186438A (pt)
MX (8) MX2007012189A (pt)
NO (7) NO340434B1 (pt)
NZ (6) NZ562186A (pt)
PL (4) PL1864282T3 (pt)
PT (2) PT1864282T (pt)
RU (9) RU2402826C2 (pt)
SG (4) SG163555A1 (pt)
SI (1) SI1864282T1 (pt)
TW (8) TWI319565B (pt)
WO (8) WO2006107836A1 (pt)

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CA2603229C (en) 2012-07-31
JP5129117B2 (ja) 2013-01-23
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BRPI0608305B1 (pt) 2019-08-06
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TWI321314B (en) 2010-03-01
AU2006232360A1 (en) 2006-10-12
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