JPS5562509A - Sound recording and reproducing system of tape recorder - Google Patents
Sound recording and reproducing system of tape recorderInfo
- 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
Links
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
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0456405A2 (en) * | 1990-05-07 | 1991-11-13 | Sony Corporation | Digital signal recording apparatus |
-
1978
- 1978-10-30 JP JP13342678A patent/JPS5562509A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0456405A2 (en) * | 1990-05-07 | 1991-11-13 | Sony Corporation | Digital signal recording apparatus |
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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