GB1356649A - Speech transmission system - Google Patents

Speech transmission system

Info

Publication number
GB1356649A
GB1356649A GB5993271A GB5993271A GB1356649A GB 1356649 A GB1356649 A GB 1356649A GB 5993271 A GB5993271 A GB 5993271A GB 5993271 A GB5993271 A GB 5993271A GB 1356649 A GB1356649 A GB 1356649A
Authority
GB
United Kingdom
Prior art keywords
filter
signal
speech
output
adaptive
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB5993271A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB5993271A priority Critical patent/GB1356649A/en
Priority to FR7245703A priority patent/FR2164813B3/fr
Priority to ES409984A priority patent/ES409984A1/es
Publication of GB1356649A publication Critical patent/GB1356649A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H21/00—Adaptive networks
    • H03H21/0012—Digital adaptive filters
    • 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
    • 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)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
GB5993271A 1971-12-23 1971-12-23 Speech transmission system Expired GB1356649A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB5993271A GB1356649A (en) 1971-12-23 1971-12-23 Speech transmission system
FR7245703A FR2164813B3 (enrdf_load_stackoverflow) 1971-12-23 1972-12-21
ES409984A ES409984A1 (es) 1971-12-23 1972-12-22 Sistema de transmision de voz empleando tecnicas digitales.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5993271A GB1356649A (en) 1971-12-23 1971-12-23 Speech transmission system

Publications (1)

Publication Number Publication Date
GB1356649A true GB1356649A (en) 1974-06-12

Family

ID=10484681

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5993271A Expired GB1356649A (en) 1971-12-23 1971-12-23 Speech transmission system

Country Status (3)

Country Link
ES (1) ES409984A1 (enrdf_load_stackoverflow)
FR (1) FR2164813B3 (enrdf_load_stackoverflow)
GB (1) GB1356649A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2130055A (en) * 1982-11-05 1984-05-23 Stc Plc A digital speech transmission system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2130055A (en) * 1982-11-05 1984-05-23 Stc Plc A digital speech transmission system

Also Published As

Publication number Publication date
FR2164813B3 (enrdf_load_stackoverflow) 1976-02-13
ES409984A1 (es) 1976-01-01
FR2164813A1 (enrdf_load_stackoverflow) 1973-08-03

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees