JPS5463604A - Time base compressor of sound - Google Patents
Time base compressor of soundInfo
- Publication number
- JPS5463604A JPS5463604A JP12993477A JP12993477A JPS5463604A JP S5463604 A JPS5463604 A JP S5463604A JP 12993477 A JP12993477 A JP 12993477A JP 12993477 A JP12993477 A JP 12993477A JP S5463604 A JPS5463604 A JP S5463604A
- Authority
- JP
- Japan
- Prior art keywords
- signals
- sound
- period
- signal
- 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.)
- Pending
Links
Landscapes
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
Abstract
PURPOSE: To obtain a compatibility with normal devices with making the compression of time base possible and reproducing sound signals in a speed higher than recording by thinning sound signals with a time area and recording sound after the change of frequency bands.
CONSTITUTION: Sound signals are led into BBD5 and 6 alternately through LPF3 below 7K Hz and switch 4, which is switched at period T3, after amplification 2 and are stored by signal S1 of sampling period T1 and are read out by signal S2 of read period T2. At a read time, SW7 operates in a phase opposite to SW4 by signal S, and signals read out from BBD5 or 6 are recorded on tape 11 through SW7, LPF8, amplifier 9 and head 10. Here, the frequency band of signals is compressed to T1/T2 times by setting the relation of period T1<T2.Then, the reproducing in a speed higher than recording brings signals of the original frequency band.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12993477A JPS5463604A (en) | 1977-10-28 | 1977-10-28 | Time base compressor of sound |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12993477A JPS5463604A (en) | 1977-10-28 | 1977-10-28 | Time base compressor of sound |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5463604A true JPS5463604A (en) | 1979-05-22 |
Family
ID=15022029
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12993477A Pending JPS5463604A (en) | 1977-10-28 | 1977-10-28 | Time base compressor of sound |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5463604A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4805217A (en) * | 1984-09-26 | 1989-02-14 | Mitsubishi Denki Kabushiki Kaisha | Receiving set with playback function |
-
1977
- 1977-10-28 JP JP12993477A patent/JPS5463604A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4805217A (en) * | 1984-09-26 | 1989-02-14 | Mitsubishi Denki Kabushiki Kaisha | Receiving set with playback function |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA2005273A1 (en) | Pause control for recording/playback apparatus | |
JPS5463604A (en) | Time base compressor of sound | |
JPS5357804A (en) | Information retrieval apparatus | |
JPS52146517A (en) | Video signal recording reproducing unit | |
JPS5774809A (en) | Voice signal processing device | |
JPS5377607A (en) | Video recorder and reproducer | |
JPS5466711A (en) | Video signal reproducing unit | |
JPS52146518A (en) | Video signal recording-reproducing unit | |
JPS5517875A (en) | Sound time base compression and expansion reproducing device | |
JPS53113424A (en) | Long time recording system for video signal | |
JPS52102012A (en) | Signal recorder/reproducer by pcm system | |
JPS5229714A (en) | Tape recorder | |
FR2344923A1 (en) | BAND DRIVING MECHANISM FOR RECORDING AND PLAYING BACK VIDEO SIGNALS | |
JPS5745474A (en) | Recording and reproduction device for radar signal | |
JPS5356919A (en) | Recording and reproducing unit of video signal and sound signal | |
JPS52102010A (en) | Signal recorder/reproducer by pcm system | |
JPS52132811A (en) | Recorded recording medium | |
JPS527712A (en) | Information regenerator | |
JPS5521640A (en) | Magnetic recording unit | |
JPS53148915A (en) | Voice recorder/reproducer for still picture | |
JPS5612181A (en) | Signal recording and reproducing device | |
JPS5433009A (en) | Tape recorder | |
JPS55149579A (en) | Recording and reproducing unit for still picture | |
JPS51134105A (en) | Recorder, reproducing equipment and related recording media of multi- dimensional acoustic signals | |
JPS5250625A (en) | Record reproduction device of colour image signal |