BR9305574A - Processos de análise espectral de quadros de sinais utilizando modelos espectrais variáveis no tempo e de codificação de sinais - Google Patents

Processos de análise espectral de quadros de sinais utilizando modelos espectrais variáveis no tempo e de codificação de sinais

Info

Publication number
BR9305574A
BR9305574A BR9305574A BR9305574A BR9305574A BR 9305574 A BR9305574 A BR 9305574A BR 9305574 A BR9305574 A BR 9305574A BR 9305574 A BR9305574 A BR 9305574A BR 9305574 A BR9305574 A BR 9305574A
Authority
BR
Brazil
Prior art keywords
signal
spectral
time
analysis processes
models
Prior art date
Application number
BR9305574A
Other languages
English (en)
Inventor
Karl Torbjorn Wigren
Original Assignee
Ericsson Telefon Ab L M
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 filed Critical Ericsson Telefon Ab L M
Publication of BR9305574A publication Critical patent/BR9305574A/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
    • 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 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Spectrometry And Color Measurement (AREA)
  • Complex Calculations (AREA)
BR9305574A 1992-07-06 1993-06-17 Processos de análise espectral de quadros de sinais utilizando modelos espectrais variáveis no tempo e de codificação de sinais BR9305574A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/909,012 US5351338A (en) 1992-07-06 1992-07-06 Time variable spectral analysis based on interpolation for speech coding
PCT/SE1993/000539 WO1994001860A1 (en) 1992-07-06 1993-06-17 Time variable spectral analysis based on interpolation for speech coding

Publications (1)

Publication Number Publication Date
BR9305574A true BR9305574A (pt) 1996-01-02

Family

ID=25426511

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9305574A BR9305574A (pt) 1992-07-06 1993-06-17 Processos de análise espectral de quadros de sinais utilizando modelos espectrais variáveis no tempo e de codificação de sinais

Country Status (18)

Country Link
US (1) US5351338A (pt)
EP (1) EP0602224B1 (pt)
JP (1) JP3299277B2 (pt)
KR (1) KR100276600B1 (pt)
CN (1) CN1078998C (pt)
AU (1) AU666751B2 (pt)
BR (1) BR9305574A (pt)
CA (1) CA2117063A1 (pt)
DE (1) DE69328410T2 (pt)
ES (1) ES2145776T3 (pt)
FI (1) FI941055A0 (pt)
HK (1) HK1014290A1 (pt)
MX (1) MX9304030A (pt)
MY (1) MY109174A (pt)
NZ (2) NZ286152A (pt)
SG (1) SG50658A1 (pt)
TW (1) TW243526B (pt)
WO (1) WO1994001860A1 (pt)

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CA2105269C (en) * 1992-10-09 1998-08-25 Yair Shoham Time-frequency interpolation with application to low rate speech coding
WO1994023426A1 (en) * 1993-03-26 1994-10-13 Motorola Inc. Vector quantizer method and apparatus
IT1270439B (it) * 1993-06-10 1997-05-05 Sip Procedimento e dispositivo per la quantizzazione dei parametri spettrali in codificatori numerici della voce
JP2906968B2 (ja) * 1993-12-10 1999-06-21 日本電気株式会社 マルチパルス符号化方法とその装置並びに分析器及び合成器
US5839102A (en) * 1994-11-30 1998-11-17 Lucent Technologies Inc. Speech coding parameter sequence reconstruction by sequence classification and interpolation
AU4265796A (en) * 1994-12-15 1996-07-03 British Telecommunications Public Limited Company Speech processing
US5664053A (en) * 1995-04-03 1997-09-02 Universite De Sherbrooke Predictive split-matrix quantization of spectral parameters for efficient coding of speech
JP3747492B2 (ja) * 1995-06-20 2006-02-22 ソニー株式会社 音声信号の再生方法及び再生装置
SE513892C2 (sv) * 1995-06-21 2000-11-20 Ericsson Telefon Ab L M Spektral effekttäthetsestimering av talsignal Metod och anordning med LPC-analys
JPH09230896A (ja) * 1996-02-28 1997-09-05 Sony Corp 音声合成装置
US6006188A (en) * 1997-03-19 1999-12-21 Dendrite, Inc. Speech signal processing for determining psychological or physiological characteristics using a knowledge base
KR100587721B1 (ko) * 1997-04-07 2006-12-04 코닌클리케 필립스 일렉트로닉스 엔.브이. 음성전송시스템
EP0906664B1 (en) * 1997-04-07 2006-06-21 Koninklijke Philips Electronics N.V. Speech transmission system
US5986199A (en) * 1998-05-29 1999-11-16 Creative Technology, Ltd. Device for acoustic entry of musical data
US6182042B1 (en) 1998-07-07 2001-01-30 Creative Technology Ltd. Sound modification employing spectral warping techniques
SE9903553D0 (sv) 1999-01-27 1999-10-01 Lars Liljeryd Enhancing percepptual performance of SBR and related coding methods by adaptive noise addition (ANA) and noise substitution limiting (NSL)
GB9912577D0 (en) * 1999-05-28 1999-07-28 Mitel Corp Method of detecting silence in a packetized voice stream
US6845326B1 (en) 1999-11-08 2005-01-18 Ndsu Research Foundation Optical sensor for analyzing a stream of an agricultural product to determine its constituents
US6624888B2 (en) * 2000-01-12 2003-09-23 North Dakota State University On-the-go sugar sensor for determining sugar content during harvesting
WO2003001618A1 (fr) * 2001-06-20 2003-01-03 Dai Nippon Printing Co., Ltd. Materiau d'emballage de batterie
KR100499047B1 (ko) * 2002-11-25 2005-07-04 한국전자통신연구원 서로 다른 대역폭을 갖는 켈프 방식 코덱들 간의 상호부호화 장치 및 그 방법
TWI393121B (zh) * 2004-08-25 2013-04-11 Dolby Lab Licensing Corp 處理一組n個聲音信號之方法與裝置及與其相關聯之電腦程式
CN100550133C (zh) * 2008-03-20 2009-10-14 华为技术有限公司 一种语音信号处理方法及装置
KR101315617B1 (ko) * 2008-11-26 2013-10-08 광운대학교 산학협력단 모드 스위칭에 기초하여 윈도우 시퀀스를 처리하는 통합 음성/오디오 부/복호화기
US11270714B2 (en) * 2020-01-08 2022-03-08 Digital Voice Systems, Inc. Speech coding using time-varying interpolation
US11990144B2 (en) 2021-07-28 2024-05-21 Digital Voice Systems, Inc. Reducing perceived effects of non-voice data in digital speech
JPWO2023017726A1 (pt) * 2021-08-11 2023-02-16

Family Cites Families (16)

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Publication number Priority date Publication date Assignee Title
US4015088A (en) * 1975-10-31 1977-03-29 Bell Telephone Laboratories, Incorporated Real-time speech analyzer
US4230906A (en) * 1978-05-25 1980-10-28 Time And Space Processing, Inc. Speech digitizer
US4443859A (en) * 1981-07-06 1984-04-17 Texas Instruments Incorporated Speech analysis circuits using an inverse lattice network
US4520499A (en) * 1982-06-25 1985-05-28 Milton Bradley Company Combination speech synthesis and recognition apparatus
US4703505A (en) * 1983-08-24 1987-10-27 Harris Corporation Speech data encoding scheme
CA1252568A (en) * 1984-12-24 1989-04-11 Kazunori Ozawa Low bit-rate pattern encoding and decoding capable of reducing an information transmission rate
US4937873A (en) * 1985-03-18 1990-06-26 Massachusetts Institute Of Technology Computationally efficient sine wave synthesis for acoustic waveform processing
US4885790A (en) * 1985-03-18 1989-12-05 Massachusetts Institute Of Technology Processing of acoustic waveforms
US4912764A (en) * 1985-08-28 1990-03-27 American Telephone And Telegraph Company, At&T Bell Laboratories Digital speech coder with different excitation types
US4797926A (en) * 1986-09-11 1989-01-10 American Telephone And Telegraph Company, At&T Bell Laboratories Digital speech vocoder
US5054072A (en) * 1987-04-02 1991-10-01 Massachusetts Institute Of Technology Coding of acoustic waveforms
CA1336841C (en) * 1987-04-08 1995-08-29 Tetsu Taguchi Multi-pulse type coding system
US4896361A (en) * 1988-01-07 1990-01-23 Motorola, Inc. Digital speech coder having improved vector excitation source
JPH07117562B2 (ja) * 1988-10-18 1995-12-18 株式会社ケンウッド スペクトラムアナライザ
US5007094A (en) * 1989-04-07 1991-04-09 Gte Products Corporation Multipulse excited pole-zero filtering approach for noise reduction
US5195168A (en) * 1991-03-15 1993-03-16 Codex Corporation Speech coder and method having spectral interpolation and fast codebook search

Also Published As

Publication number Publication date
EP0602224B1 (en) 2000-04-19
JP3299277B2 (ja) 2002-07-08
TW243526B (pt) 1995-03-21
WO1994001860A1 (en) 1994-01-20
CN1078998C (zh) 2002-02-06
MX9304030A (es) 1994-01-31
US5351338A (en) 1994-09-27
MY109174A (en) 1996-12-31
FI941055A (fi) 1994-03-04
KR100276600B1 (ko) 2000-12-15
DE69328410D1 (de) 2000-05-25
AU4518593A (en) 1994-01-31
SG50658A1 (en) 1998-07-20
JPH07500683A (ja) 1995-01-19
FI941055A0 (fi) 1994-03-04
NZ286152A (en) 1997-03-24
ES2145776T3 (es) 2000-07-16
CN1083294A (zh) 1994-03-02
KR940702632A (ko) 1994-08-20
EP0602224A1 (en) 1994-06-22
AU666751B2 (en) 1996-02-22
CA2117063A1 (en) 1994-01-20
HK1014290A1 (en) 1999-09-24
NZ253816A (en) 1996-08-27
DE69328410T2 (de) 2000-09-07

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Legal Events

Date Code Title Description
EE Request for examination
FB36 Technical and formal requirements: requirement - article 36 of industrial property law
FF Decision: intention to grant
FG9A Patent or certificate of addition granted
B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 17/06/2013

B15K Others concerning applications: alteration of classification

Ipc: G10L 19/06 (2013.01)