GB2127639B - Digital-to-anologue converter arrangement - Google Patents

Digital-to-anologue converter arrangement

Info

Publication number
GB2127639B
GB2127639B GB08324865A GB8324865A GB2127639B GB 2127639 B GB2127639 B GB 2127639B GB 08324865 A GB08324865 A GB 08324865A GB 8324865 A GB8324865 A GB 8324865A GB 2127639 B GB2127639 B GB 2127639B
Authority
GB
United Kingdom
Prior art keywords
digital
converter arrangement
circuit
anologue
analogue converter
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
GB08324865A
Other versions
GB8324865D0 (en
GB2127639A (en
Inventor
Michael Camille Auguste Rahier
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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
Priority claimed from BE2/59841A external-priority patent/BE894438A/en
Application filed by International Standard Electric Corp filed Critical International Standard Electric Corp
Publication of GB8324865D0 publication Critical patent/GB8324865D0/en
Publication of GB2127639A publication Critical patent/GB2127639A/en
Application granted granted Critical
Publication of GB2127639B publication Critical patent/GB2127639B/en
Expired legal-status Critical Current

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
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/66—Digital/analogue converters
    • H03M1/74—Simultaneous conversion

Landscapes

  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Analogue/Digital Conversion (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Complex Calculations (AREA)

Abstract

A digital-to-analogue converter arrangement includes a digital filter (DF) supplied via an amplifier (A) from either a white noise generator (WNG) or a periodic impulse generator (PIG). The output of the digital filter is coupled, via the cascade connection of a code-compressing circuit (CC), an interpolator circuit (INT) and a digital- to-analogue converter (DAC), to an output terminal (OUT). The circuit is under the control of a control device (CD) in which various control parameters or coefficients are stored. <IMAGE>
GB08324865A 1982-09-20 1983-09-16 Digital-to-anologue converter arrangement Expired GB2127639B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE2/59841A BE894438A (en) 1982-09-20 1982-09-20 D=A converter for speech synthesis circuit - converts digitally processed pulses and white noise into synthetic analogue speech signals

Publications (3)

Publication Number Publication Date
GB8324865D0 GB8324865D0 (en) 1983-10-19
GB2127639A GB2127639A (en) 1984-04-11
GB2127639B true GB2127639B (en) 1986-01-15

Family

ID=3865613

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08324865A Expired GB2127639B (en) 1982-09-20 1983-09-16 Digital-to-anologue converter arrangement

Country Status (2)

Country Link
CH (1) CH661161A5 (en)
GB (1) GB2127639B (en)

Also Published As

Publication number Publication date
GB8324865D0 (en) 1983-10-19
GB2127639A (en) 1984-04-11
CH661161A5 (en) 1987-06-30

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee