JPS5597013A - Method and device for audio information recording and reproduction - Google Patents
Method and device for audio information recording and reproductionInfo
- Publication number
- JPS5597013A JPS5597013A JP461479A JP461479A JPS5597013A JP S5597013 A JPS5597013 A JP S5597013A JP 461479 A JP461479 A JP 461479A JP 461479 A JP461479 A JP 461479A JP S5597013 A JPS5597013 A JP S5597013A
- Authority
- JP
- Japan
- Prior art keywords
- dynamic range
- reproduction
- passages
- featuring
- voice
- 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
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
Abstract
PURPOSE: To ensure the reproduction for the voice featuring the large dynamic range with a high S/N ratio by recording previously the higher harmonic frequency with the necessary level every passage according to the level of the aural signal.
CONSTITUTION: The aural signal is partitioned into passages A, B, C... in accordance with its level each. Then the higher harmonic frequency signals outside the audible frequency band are recorded on passages A, B, C... with the levels set according to the aural levels of these passages. As a result, the dynamic range is decreased substantially for the recording of the voice featuring the large dynamic range due to the sum of the voice and the higher harmonic signal. Accordingly, if the aural signal is divided via LPF, HPF and the like and after reproduction, the aural signal featuring the large dynamic range can be reproduced with a high S/N ratio.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP461479A JPS5597013A (en) | 1979-01-17 | 1979-01-17 | Method and device for audio information recording and reproduction |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP461479A JPS5597013A (en) | 1979-01-17 | 1979-01-17 | Method and device for audio information recording and reproduction |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5597013A true JPS5597013A (en) | 1980-07-23 |
Family
ID=11588925
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP461479A Pending JPS5597013A (en) | 1979-01-17 | 1979-01-17 | Method and device for audio information recording and reproduction |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5597013A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57180820U (en) * | 1981-05-08 | 1982-11-16 |
-
1979
- 1979-01-17 JP JP461479A patent/JPS5597013A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57180820U (en) * | 1981-05-08 | 1982-11-16 |
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