JPS57169976A - Editing system for pcm magnetic recorder - Google Patents
Editing system for pcm magnetic recorderInfo
- Publication number
- JPS57169976A JPS57169976A JP5489981A JP5489981A JPS57169976A JP S57169976 A JPS57169976 A JP S57169976A JP 5489981 A JP5489981 A JP 5489981A JP 5489981 A JP5489981 A JP 5489981A JP S57169976 A JPS57169976 A JP S57169976A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- compensation
- sample
- level
- original
- 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
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
- G11B27/031—Electronic editing of digitised analogue information signals, e.g. audio or video signals
- G11B27/032—Electronic editing of digitised analogue information signals, e.g. audio or video signals on tapes
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Management Or Editing Of Information On Record Carriers (AREA)
Abstract
PURPOSE:To prevent the production of an abnormal sound at a connecting point, by executing the compensation until the level after the compensation and the level of the original waveform become equal, and switching and outputting the original waveform when they are equal. CONSTITUTION:A difference between a PCM-coded sample n and an amplitude of (n+1) is separated 64 and 65 into the polarity and absolute information, and the absolute value is compared 66 with a preset step DELTA. When the absolute value is greater than the DELTA, the step DELTA is positively added to the sample through the polarity and negatively subtracted to form the sample (n+1), and if the absolute value is smaller than or equal to the DELTA, 0 is added to form 81 the sample value (n+1) and a correction signal. From an editing point detection signal 83 or a control signal earlier in time than the signal 83, switching from the original signal to the correction signal is made, the original signal level and the compensation signal level are always compared 75, and when they are coincident, the switching from the compensation signal to the original signal is made and the signal is transmitted 72.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5489981A JPS57169976A (en) | 1981-04-10 | 1981-04-10 | Editing system for pcm magnetic recorder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5489981A JPS57169976A (en) | 1981-04-10 | 1981-04-10 | Editing system for pcm magnetic recorder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57169976A true JPS57169976A (en) | 1982-10-19 |
| JPH0127514B2 JPH0127514B2 (en) | 1989-05-29 |
Family
ID=12983442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5489981A Granted JPS57169976A (en) | 1981-04-10 | 1981-04-10 | Editing system for pcm magnetic recorder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57169976A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02277309A (en) * | 1989-04-18 | 1990-11-13 | Victor Co Of Japan Ltd | Digital signal processing unit |
-
1981
- 1981-04-10 JP JP5489981A patent/JPS57169976A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02277309A (en) * | 1989-04-18 | 1990-11-13 | Victor Co Of Japan Ltd | Digital signal processing unit |
| JPH0783226B2 (en) * | 1989-04-18 | 1995-09-06 | 日本ビクター株式会社 | Digital signal processor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0127514B2 (en) | 1989-05-29 |
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