JPS5789344A - Audio signal processing method - Google Patents

Audio signal processing method

Info

Publication number
JPS5789344A
JPS5789344A JP16471680A JP16471680A JPS5789344A JP S5789344 A JPS5789344 A JP S5789344A JP 16471680 A JP16471680 A JP 16471680A JP 16471680 A JP16471680 A JP 16471680A JP S5789344 A JPS5789344 A JP S5789344A
Authority
JP
Japan
Prior art keywords
audio signal
converter
conversion
signal
output
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.)
Pending
Application number
JP16471680A
Other languages
Japanese (ja)
Inventor
Kenkichi Tsukamoto
Kazuhiko Tsukamoto
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP16471680A priority Critical patent/JPS5789344A/en
Publication of JPS5789344A publication Critical patent/JPS5789344A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10527—Audio or video recording; Data buffering arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)

Abstract

PURPOSE:To make a high-quality reproducing of an audio signal possible, by modulating the audio signal so that the output of a D/A converter does not include frequency components lower than a frequency twice as high as the upper limit of frequencies to be reproduced, in the PCM processing method for the audio signal. CONSTITUTION:In an audio signal processing circuit where an audio signal is sampled and is subjected to A/D conversion and passes through a D/A converter, which converts the audio signal to a continuous waveform and outputs it, as required, an output AS of a D/A converter 30 which converts a digital signal DS to the analogue signal AS is controlled by an AND gate 31. A 44k Hz square wave as a gate signal GS is outputted synchronously with the output of the D/A conversion. Consequently, since cross modulation components accompanied with D/A conversion do not exist in the audio signal band, a high-quality reproducing is possible.
JP16471680A 1980-11-25 1980-11-25 Audio signal processing method Pending JPS5789344A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16471680A JPS5789344A (en) 1980-11-25 1980-11-25 Audio signal processing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16471680A JPS5789344A (en) 1980-11-25 1980-11-25 Audio signal processing method

Publications (1)

Publication Number Publication Date
JPS5789344A true JPS5789344A (en) 1982-06-03

Family

ID=15798524

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16471680A Pending JPS5789344A (en) 1980-11-25 1980-11-25 Audio signal processing method

Country Status (1)

Country Link
JP (1) JPS5789344A (en)

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