JPS57105809A - Recording and reproducing device - Google Patents

Recording and reproducing device

Info

Publication number
JPS57105809A
JPS57105809A JP55181991A JP18199180A JPS57105809A JP S57105809 A JPS57105809 A JP S57105809A JP 55181991 A JP55181991 A JP 55181991A JP 18199180 A JP18199180 A JP 18199180A JP S57105809 A JPS57105809 A JP S57105809A
Authority
JP
Japan
Prior art keywords
pitch
signal
speed
reproducing
recording
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
JP55181991A
Other languages
Japanese (ja)
Other versions
JPH0223877B2 (en
Inventor
Toru Sanbe
Tadashi Saito
Akihiro Asada
Gichu Oota
Shigemitsu Higuchi
Shunji Iwasaki
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP55181991A priority Critical patent/JPS57105809A/en
Publication of JPS57105809A publication Critical patent/JPS57105809A/en
Publication of JPH0223877B2 publication Critical patent/JPH0223877B2/ja
Granted 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
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility

Landscapes

  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Quality & Reliability (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)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)

Abstract

PURPOSE:To improve the articulation of reproducing sound, by analyzing the pitch and spectrum of a reproducing signal and synthesizing the sound again, in the reproduction in which the reproducing speed is made different from a tape speed at recording without change of the pitch with an original signal. CONSTITUTION:After a signal reproduced with a different speed from a tape speed at recording is reproduced at a head 4 and AD-converted at an AD converter 6, the signal is written in shift registers 7-1, 7-2 with pulses related to a tape reproducing speed at each specified period and read out with the reference pulse from a shift register not at write-in state. This readout signal analyzes the audio spectrum and pitch at an analyzer 8. The output of the analyzer 8 is applied to a synthesizer 9 to reproduce sound. The pitch is not subjected to the effect of a specified period, since pulses at the next period are generated after the final one period of the preceding region at adjacent periods is finished.
JP55181991A 1980-12-24 1980-12-24 Recording and reproducing device Granted JPS57105809A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55181991A JPS57105809A (en) 1980-12-24 1980-12-24 Recording and reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55181991A JPS57105809A (en) 1980-12-24 1980-12-24 Recording and reproducing device

Publications (2)

Publication Number Publication Date
JPS57105809A true JPS57105809A (en) 1982-07-01
JPH0223877B2 JPH0223877B2 (en) 1990-05-25

Family

ID=16110405

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55181991A Granted JPS57105809A (en) 1980-12-24 1980-12-24 Recording and reproducing device

Country Status (1)

Country Link
JP (1) JPS57105809A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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 (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
JPH0223877B2 (en) 1990-05-25

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