JPS5562509A - Sound recording and reproducing system of tape recorder - Google Patents

Sound recording and reproducing system of tape recorder

Info

Publication number
JPS5562509A
JPS5562509A JP13342678A JP13342678A JPS5562509A JP S5562509 A JPS5562509 A JP S5562509A JP 13342678 A JP13342678 A JP 13342678A JP 13342678 A JP13342678 A JP 13342678A JP S5562509 A JPS5562509 A JP S5562509A
Authority
JP
Japan
Prior art keywords
sound
signals
recording
reproducing
level
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
JP13342678A
Other languages
Japanese (ja)
Inventor
Shigeru Yoshida
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.)
Pioneer Corp
Original Assignee
Pioneer Electronic 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
Application filed by Pioneer Electronic Corp filed Critical Pioneer Electronic Corp
Priority to JP13342678A priority Critical patent/JPS5562509A/en
Publication of JPS5562509A publication Critical patent/JPS5562509A/en
Pending legal-status Critical Current

Links

Landscapes

  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)

Abstract

PURPOSE: To make it possible to reproduce original sound without damaging it by mixing sound recording signals into pilot signal and compressing them and expanding width of them and amplifying them to record sound and detecting the level of pilot signals and expanding width of them and compressing them to reproduce sound.
CONSTITUTION: Input signals and pilot signals P are applied to mixing circuit 1. Input signal waveform a is modulated into waveform b. These modulation signals have the sound recording level to a tape compressed and expanded to an optimum level by automatic gain adjustment equipment 4 and are amplified by 5 and are arranged into the same level as shown in signal waveform c. These modulation input signals are recorded on the tape through recording circuit 6 by recording head 7. Next, the reproducing input from reproducing head 10 is inputted to automatic gain adjustment equipment 12 through reproducing equalizer 11. In adjustment equipment 12, only pilot signals P are detected from amplified 13 and are expanded and compressed in operations opposite to recording, thereby demodulating them to the original source. Then, the reproducing output is inputted to an output amplifier, which is not shown in the figure, and is reproduced. As a result, original sound can be reproduced without damaging it.
COPYRIGHT: (C)1980,JPO&Japio
JP13342678A 1978-10-30 1978-10-30 Sound recording and reproducing system of tape recorder Pending JPS5562509A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13342678A JPS5562509A (en) 1978-10-30 1978-10-30 Sound recording and reproducing system of tape recorder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13342678A JPS5562509A (en) 1978-10-30 1978-10-30 Sound recording and reproducing system of tape recorder

Publications (1)

Publication Number Publication Date
JPS5562509A true JPS5562509A (en) 1980-05-12

Family

ID=15104487

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13342678A Pending JPS5562509A (en) 1978-10-30 1978-10-30 Sound recording and reproducing system of tape recorder

Country Status (1)

Country Link
JP (1) JPS5562509A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5253123A (en) * 1990-05-07 1993-10-12 Sony Corporation Apparatus for digitally recording time-multiplexed digital information and pilot signals with different recording current levels

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5253123A (en) * 1990-05-07 1993-10-12 Sony Corporation Apparatus for digitally recording time-multiplexed digital information and pilot signals with different recording current levels

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