JPS5499407A - Reproduction signal compressing apparatus - Google Patents
Reproduction signal compressing apparatusInfo
- Publication number
- JPS5499407A JPS5499407A JP593578A JP593578A JPS5499407A JP S5499407 A JPS5499407 A JP S5499407A JP 593578 A JP593578 A JP 593578A JP 593578 A JP593578 A JP 593578A JP S5499407 A JPS5499407 A JP S5499407A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- syllable
- head
- reproduction
- pulse
- 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
Links
Landscapes
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
Abstract
PURPOSE: To eliminate unnaturalness of the compressed reproduction sounds by performing changing over of the writing and reading of a plurality of delay devices in association to the output of the time when the head portion of each syllable of the reproduction input signal is detected.
CONSTITUTION: When the reproduction signal from terminal 1 enters at time intervals of sections T1 thru T3, a detection pulse Pd generates from a peak detection circuit 15 in the position of the head of each syllable and after T/2 thereof, an output pulse P3 is generated from a counter 16. When the pulse P3 is supplied via OR 19 to an FF 20, a switching signal Tg and anti Tg are generated and between the high levels thereof, the signal S1 of the portion of the head of that syllable in the section T1 and the same signal S2 in the segment T2 are respectively written in delay devices 3,4 by changeover circuits 2,5 and switch circuit 11. At the same time, the signal S1 having been written previously is subsequently read out from the head of the syllable from the device 3 but in the segment T2 reading out all of the signal S1 is not possible. However, missing of important portions will not occur. Hence, the unnaturalness of the compressed reproduction sounds may be perfectly eliminated.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53005935A JPS6014422B2 (en) | 1978-01-23 | 1978-01-23 | Playback signal compression device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53005935A JPS6014422B2 (en) | 1978-01-23 | 1978-01-23 | Playback signal compression device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5499407A true JPS5499407A (en) | 1979-08-06 |
JPS6014422B2 JPS6014422B2 (en) | 1985-04-13 |
Family
ID=11624746
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53005935A Expired JPS6014422B2 (en) | 1978-01-23 | 1978-01-23 | Playback signal compression device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6014422B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5730897A (en) * | 1980-08-01 | 1982-02-19 | Fujitsu Ltd | Voice data receiving system |
-
1978
- 1978-01-23 JP JP53005935A patent/JPS6014422B2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5730897A (en) * | 1980-08-01 | 1982-02-19 | Fujitsu Ltd | Voice data receiving system |
JPH0225519B2 (en) * | 1980-08-01 | 1990-06-04 | Fujitsu Kk |
Also Published As
Publication number | Publication date |
---|---|
JPS6014422B2 (en) | 1985-04-13 |
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