AT251656B - Processes and arrangements for improving the speech quality in vocoder systems - Google Patents

Processes and arrangements for improving the speech quality in vocoder systems

Info

Publication number
AT251656B
AT251656B AT275665A AT275665A AT251656B AT 251656 B AT251656 B AT 251656B AT 275665 A AT275665 A AT 275665A AT 275665 A AT275665 A AT 275665A AT 251656 B AT251656 B AT 251656B
Authority
AT
Austria
Prior art keywords
arrangements
improving
processes
speech quality
vocoder systems
Prior art date
Application number
AT275665A
Other languages
German (de)
Original Assignee
Ibm Oesterreich Internationale
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 Ibm Oesterreich Internationale filed Critical Ibm Oesterreich Internationale
Priority to AT275665A priority Critical patent/AT251656B/en
Priority to US445563A priority patent/US3431355A/en
Priority to BE677136D priority patent/BE677136A/en
Priority to CH323466A priority patent/CH443413A/en
Priority to NL666602974A priority patent/NL146672B/en
Priority to DEJ30298A priority patent/DE1276740B/en
Priority to GB11188/66A priority patent/GB1073203A/en
Priority to FR53804A priority patent/FR1471628A/en
Priority to ES0324621A priority patent/ES324621A1/en
Priority to SE4042/66A priority patent/SE323721B/xx
Application granted granted Critical
Publication of AT251656B publication Critical patent/AT251656B/en

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

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)
  • Filters That Use Time-Delay Elements (AREA)
  • Meter Arrangements (AREA)
  • Machine Translation (AREA)
AT275665A 1965-03-25 1965-03-25 Processes and arrangements for improving the speech quality in vocoder systems AT251656B (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
AT275665A AT251656B (en) 1965-03-25 1965-03-25 Processes and arrangements for improving the speech quality in vocoder systems
US445563A US3431355A (en) 1965-03-25 1965-04-05 Device for excitation controlled smoothing of the spectrum-channel signals of a vocoder
BE677136D BE677136A (en) 1965-03-25 1966-02-28 Methods and devices for performing filtering controlled by excitation of channel voltages in voice coding systems
CH323466A CH443413A (en) 1965-03-25 1966-03-07 Method and device for improving the speech quality when analyzing unvoiced speech segments according to the channel vocoder principle
NL666602974A NL146672B (en) 1965-03-25 1966-03-08 SYNTHETIC SPEECH TRANSMISSION SYSTEM.
DEJ30298A DE1276740B (en) 1965-03-25 1966-03-11 Procedures and arrangements for improving the speech quality of channel vocoders
GB11188/66A GB1073203A (en) 1965-03-25 1966-03-15 Improvements in or relating to vocoder systems
FR53804A FR1471628A (en) 1965-03-25 1966-03-17 Methods and devices for performing filtering controlled by excitation of channel voltages in voice coding systems
ES0324621A ES324621A1 (en) 1965-03-25 1966-03-24 A device for carrying out a procedure to improve the phonetic quality in the analysis of voids seconds by the principle of vocal coding. (Machine-translation by Google Translate, not legally binding)
SE4042/66A SE323721B (en) 1965-03-25 1966-03-25

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT275665A AT251656B (en) 1965-03-25 1965-03-25 Processes and arrangements for improving the speech quality in vocoder systems

Publications (1)

Publication Number Publication Date
AT251656B true AT251656B (en) 1967-01-10

Family

ID=3539787

Family Applications (1)

Application Number Title Priority Date Filing Date
AT275665A AT251656B (en) 1965-03-25 1965-03-25 Processes and arrangements for improving the speech quality in vocoder systems

Country Status (10)

Country Link
US (1) US3431355A (en)
AT (1) AT251656B (en)
BE (1) BE677136A (en)
CH (1) CH443413A (en)
DE (1) DE1276740B (en)
ES (1) ES324621A1 (en)
FR (1) FR1471628A (en)
GB (1) GB1073203A (en)
NL (1) NL146672B (en)
SE (1) SE323721B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL84948A0 (en) * 1987-12-25 1988-06-30 D S P Group Israel Ltd Noise reduction system
EP0553906B1 (en) * 1992-01-21 1998-04-08 Koninklijke Philips Electronics N.V. Method and apparatus for sound enhancement with envelopes of multiband passed signals feeding comb filters
US5768473A (en) * 1995-01-30 1998-06-16 Noise Cancellation Technologies, Inc. Adaptive speech filter
US6108610A (en) * 1998-10-13 2000-08-22 Noise Cancellation Technologies, Inc. Method and system for updating noise estimates during pauses in an information signal

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3012098A (en) * 1941-11-22 1961-12-05 Bell Telephone Labor Inc Telephone privacy
US2810787A (en) * 1952-05-22 1957-10-22 Itt Compressed frequency communication system
US3102928A (en) * 1960-12-23 1963-09-03 Bell Telephone Labor Inc Vocoder excitation generator
US3261916A (en) * 1962-11-16 1966-07-19 Ibm Adjustable recognition system

Also Published As

Publication number Publication date
NL6602974A (en) 1966-09-26
NL146672B (en) 1975-07-15
FR1471628A (en) 1967-03-03
DE1276740B (en) 1968-09-05
SE323721B (en) 1970-05-11
US3431355A (en) 1969-03-04
GB1073203A (en) 1967-06-21
ES324621A1 (en) 1967-02-01
BE677136A (en) 1966-07-18
CH443413A (en) 1967-09-15

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