JPS57211841A - Communication system for compression of voice information time - Google Patents

Communication system for compression of voice information time

Info

Publication number
JPS57211841A
JPS57211841A JP56098093A JP9809381A JPS57211841A JP S57211841 A JPS57211841 A JP S57211841A JP 56098093 A JP56098093 A JP 56098093A JP 9809381 A JP9809381 A JP 9809381A JP S57211841 A JPS57211841 A JP S57211841A
Authority
JP
Japan
Prior art keywords
voice
parcor
speed
compression
band
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.)
Granted
Application number
JP56098093A
Other languages
Japanese (ja)
Other versions
JPH0324820B2 (en
Inventor
Yasuo Sato
Takayuki Ooyama
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP56098093A priority Critical patent/JPS57211841A/en
Publication of JPS57211841A publication Critical patent/JPS57211841A/en
Publication of JPH0324820B2 publication Critical patent/JPH0324820B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)

Abstract

PURPOSE:To easily grasp the contents of voices at the communication by transmitting the analyzed result of a voice reproduced at the speed of K times. CONSTITUTION:A high speed voice reproducing part 1 reproduces an original voice with the band of Fs at the speed of K times and outputs a reproduced signal with the band of KFs to a sampling part 2, which samples the inputted reproduced signal by the frequency of 2KFs. A PARCOR voice analyzing part 3 analyzes a received voices in every frame period Ts on the basis of the sampled information and a transmitting part 4 transmits the analyzed result. A PARCOR voice synthesizing part 6 executes voice synthesization at a 1/K pitch and the sampling frequency of 2Fs. A digital voice signal from the PARCOR voice synthesizing part 6 is applied to a speaker 8 through a DA converting part 7 and converted into the original voice.
JP56098093A 1981-06-23 1981-06-23 Communication system for compression of voice information time Granted JPS57211841A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56098093A JPS57211841A (en) 1981-06-23 1981-06-23 Communication system for compression of voice information time

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56098093A JPS57211841A (en) 1981-06-23 1981-06-23 Communication system for compression of voice information time

Publications (2)

Publication Number Publication Date
JPS57211841A true JPS57211841A (en) 1982-12-25
JPH0324820B2 JPH0324820B2 (en) 1991-04-04

Family

ID=14210721

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56098093A Granted JPS57211841A (en) 1981-06-23 1981-06-23 Communication system for compression of voice information time

Country Status (1)

Country Link
JP (1) JPS57211841A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5236401A (en) * 1975-09-17 1977-03-19 Hideo Umetsu Time reduction method for information transmission circuit and its dev ice which used telephone circuit
JPS5548813A (en) * 1978-10-02 1980-04-08 Kanbayashi Seisakusho:Kk Compressing and expanding unit for time axis of audio
JPS5685799A (en) * 1979-12-14 1981-07-13 Sony Corp Voice pitch converter

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5236401A (en) * 1975-09-17 1977-03-19 Hideo Umetsu Time reduction method for information transmission circuit and its dev ice which used telephone circuit
JPS5548813A (en) * 1978-10-02 1980-04-08 Kanbayashi Seisakusho:Kk Compressing and expanding unit for time axis of audio
JPS5685799A (en) * 1979-12-14 1981-07-13 Sony Corp Voice pitch converter

Also Published As

Publication number Publication date
JPH0324820B2 (en) 1991-04-04

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