SE9100116D0 - Metod att kvantisera linjespektralfrekvenser vid vid beraekning av filterparametrar i en talkodare - Google Patents

Metod att kvantisera linjespektralfrekvenser vid vid beraekning av filterparametrar i en talkodare

Info

Publication number
SE9100116D0
SE9100116D0 SE9100116A SE9100116A SE9100116D0 SE 9100116 D0 SE9100116 D0 SE 9100116D0 SE 9100116 A SE9100116 A SE 9100116A SE 9100116 A SE9100116 A SE 9100116A SE 9100116 D0 SE9100116 D0 SE 9100116D0
Authority
SE
Sweden
Prior art keywords
frequencies
line spectral
polynomials
spectral frequencies
filter parameters
Prior art date
Application number
SE9100116A
Other languages
English (en)
Other versions
SE467806B (sv
SE9100116L (sv
Inventor
Ahlberg J Tomasson
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
Priority to SE9100116A priority Critical patent/SE467806B/sv
Publication of SE9100116D0 publication Critical patent/SE9100116D0/sv
Priority to US07/816,970 priority patent/US5233659A/en
Priority to GB9200422A priority patent/GB2254760B/en
Publication of SE9100116L publication Critical patent/SE9100116L/sv
Publication of SE467806B publication Critical patent/SE467806B/sv

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
    • G10L19/04—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)
  • Spectroscopy & Molecular Physics (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
SE9100116A 1991-01-14 1991-01-14 Metod att kvantisera linjespektralfrekvenser (lsf) vid beraekning av parametrar foer ett analysfilter ingaaende i en talkodare SE467806B (sv)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE9100116A SE467806B (sv) 1991-01-14 1991-01-14 Metod att kvantisera linjespektralfrekvenser (lsf) vid beraekning av parametrar foer ett analysfilter ingaaende i en talkodare
US07/816,970 US5233659A (en) 1991-01-14 1992-01-03 Method of quantizing line spectral frequencies when calculating filter parameters in a speech coder
GB9200422A GB2254760B (en) 1991-01-14 1992-01-09 A method of quantizing line spectral frequencies when calculating filter parameters in a speech coder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9100116A SE467806B (sv) 1991-01-14 1991-01-14 Metod att kvantisera linjespektralfrekvenser (lsf) vid beraekning av parametrar foer ett analysfilter ingaaende i en talkodare

Publications (3)

Publication Number Publication Date
SE9100116D0 true SE9100116D0 (sv) 1991-01-14
SE9100116L SE9100116L (sv) 1992-07-15
SE467806B SE467806B (sv) 1992-09-14

Family

ID=20381615

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9100116A SE467806B (sv) 1991-01-14 1991-01-14 Metod att kvantisera linjespektralfrekvenser (lsf) vid beraekning av parametrar foer ett analysfilter ingaaende i en talkodare

Country Status (3)

Country Link
US (1) US5233659A (sv)
GB (1) GB2254760B (sv)
SE (1) SE467806B (sv)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5659659A (en) * 1993-07-26 1997-08-19 Alaris, Inc. Speech compressor using trellis encoding and linear prediction
US5602961A (en) * 1994-05-31 1997-02-11 Alaris, Inc. Method and apparatus for speech compression using multi-mode code excited linear predictive coding
US5470343A (en) * 1994-06-10 1995-11-28 Zmd Corporation Detachable power supply for supplying external power to a portable defibrillator
US5575807A (en) * 1994-06-10 1996-11-19 Zmd Corporation Medical device power supply with AC disconnect alarm and method of supplying power to a medical device
EP0774750B1 (en) * 1995-11-15 2003-02-05 Nokia Corporation Determination of line spectrum frequencies for use in a radiotelephone
US5832443A (en) * 1997-02-25 1998-11-03 Alaris, Inc. Method and apparatus for adaptive audio compression and decompression
US6253172B1 (en) * 1997-10-16 2001-06-26 Texas Instruments Incorporated Spectral transformation of acoustic signals
EP1303857A1 (en) * 2000-07-05 2003-04-23 Koninklijke Philips Electronics N.V. Method of converting line spectral frequencies back to linear prediction coefficients
JP2004502202A (ja) * 2000-07-05 2004-01-22 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ ラインスペクトル周波数の算出方法
US6859775B2 (en) * 2001-03-06 2005-02-22 Ntt Docomo, Inc. Joint optimization of excitation and model parameters in parametric speech coders
GB0703795D0 (en) * 2007-02-27 2007-04-04 Sepura Ltd Speech encoding and decoding in communications systems
RU2643646C2 (ru) 2013-11-13 2018-02-02 Фраунхофер-Гезелльшафт Цур Фердерунг Дер Ангевандтен Форшунг Е.Ф. Кодер для кодирования аудиосигнала, система передачи аудио и способ определения значений коррекции

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3624302A (en) * 1969-10-29 1971-11-30 Bell Telephone Labor Inc Speech analysis and synthesis by the use of the linear prediction of a speech wave
US3740476A (en) * 1971-07-09 1973-06-19 Bell Telephone Labor Inc Speech signal pitch detector using prediction error data
JPS5853352B2 (ja) * 1979-10-03 1983-11-29 日本電信電話株式会社 音声合成器
US4472832A (en) * 1981-12-01 1984-09-18 At&T Bell Laboratories Digital speech coder
JPS60239798A (ja) * 1984-05-14 1985-11-28 日本電気株式会社 音声信号符号化／復号化装置
JPH0332228A (ja) * 1989-06-29 1991-02-12 Fujitsu Ltd ゲイン―シェイプ・ベクトル量子化方式
US4975956A (en) * 1989-07-26 1990-12-04 Itt Corporation Low-bit-rate speech coder using LPC data reduction processing
US5012518A (en) * 1989-07-26 1991-04-30 Itt Corporation Low-bit-rate speech coder using LPC data reduction processing
WO1991002348A1 (en) * 1989-08-07 1991-02-21 Motorola, Inc. Speech recognition using spectral line frequencies

Also Published As

Publication number Publication date
US5233659A (en) 1993-08-03
GB9200422D0 (en) 1992-02-26
GB2254760A (en) 1992-10-14
GB2254760B (en) 1995-03-08
SE467806B (sv) 1992-09-14
SE9100116L (sv) 1992-07-15

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