JPS5558815A - Audio recording system - Google Patents

Audio recording system

Info

Publication number
JPS5558815A
JPS5558815A JP13197678A JP13197678A JPS5558815A JP S5558815 A JPS5558815 A JP S5558815A JP 13197678 A JP13197678 A JP 13197678A JP 13197678 A JP13197678 A JP 13197678A JP S5558815 A JPS5558815 A JP S5558815A
Authority
JP
Japan
Prior art keywords
information
audio
procedure
restoration
compression
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
JP13197678A
Other languages
Japanese (ja)
Inventor
Kiyohiko Kobayashi
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.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP13197678A priority Critical patent/JPS5558815A/en
Publication of JPS5558815A publication Critical patent/JPS5558815A/en
Pending legal-status Critical Current

Links

Landscapes

  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)

Abstract

PURPOSE: To enable to use the audio recording body small in the capacity, by compressing the audio information in accordance with its characteristics and recording it on the audio recording body together with the procedure of restoration.
CONSTITUTION: The audio waveform is sampled at the sampling circuit 1 and after A/D conversion with the A/D converter 2, compression is made with the rule on the types of the audio information with the information compression circuit 8. That is, the information is compressed by using the maximum value of audio and frequency of the intensity of audio. Thus, the compression rate of information can be increased. The circuit 8 compresses information and produces the information representing the procedure of restoration corresponding to the procedure of compression. Further, the solid record 9 stores the audio information compressed from the circuit 8 to the audio information memory section and the information representing the procedure of restoration is stored in the restoration procedure memory 11.
COPYRIGHT: (C)1980,JPO&Japio
JP13197678A 1978-10-26 1978-10-26 Audio recording system Pending JPS5558815A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13197678A JPS5558815A (en) 1978-10-26 1978-10-26 Audio recording system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13197678A JPS5558815A (en) 1978-10-26 1978-10-26 Audio recording system

Publications (1)

Publication Number Publication Date
JPS5558815A true JPS5558815A (en) 1980-05-01

Family

ID=15070621

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13197678A Pending JPS5558815A (en) 1978-10-26 1978-10-26 Audio recording system

Country Status (1)

Country Link
JP (1) JPS5558815A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6143796A (en) * 1984-08-08 1986-03-03 カシオ計算機株式会社 Voice recorder
US5642463A (en) * 1992-12-21 1997-06-24 Sharp Kabushiki Kaisha Stereophonic voice recording and playback device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6143796A (en) * 1984-08-08 1986-03-03 カシオ計算機株式会社 Voice recorder
US5642463A (en) * 1992-12-21 1997-06-24 Sharp Kabushiki Kaisha Stereophonic voice recording and playback device

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