BS 7434-3(1994) : 1994 AMD 8933
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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METHODS OF MEASUREMENT FOR NON-BROADCAST VIDEO TAPE RECORDERS - AUDIO CHARACTERISTICS FOR FM RECORDING
15-12-1995
23-11-2012
Committees responsible
National foreword
Section 1. General
1.1 Scope
1.2 Normative references
1.3 Test conditions
Section 2. Audio characteristics
2.1 Amplitude/frequency response
2.2 Signal-to-noise ratio (AGC off)
2.3 Signal-to-noise ratio (AGC on)
2.4 Dynamic range (AGC off)
2.5 Dynamic range (AGC on)
2.6 Harmonic distortion
2.7 Channel crosstalk
2.8 Channel separation
2.9 AGC operation and attack/recovery time
2.10 Switching noise
2.11 Wow and flutter
Section 3. Calibration tape
3.1 General
3.2 Magnetic tape
3.3 Recording audio signal
3.4 Recording video signal
3.5 Presentation
Annex
A. (informative) Bibliography
Figures
1. Circuit arrangement: Amplitude/frequency response
2. Circuit arrangement: Signal-to-noise ratio AGC off;
Dynamic range
3. Circuit arrangement: Signal-to-noise ratio AGC on
4. Circuit arrangement: Harmonic distortion
5. Circuit arrangement: Channel crosstalk AGC off;
Channel separation AGC off
6. Circuit arrangement: Channel crosstalk AGC on;
Channel separation AGC on
7. Crosstalk of channel L from channel R
8. Crosstalk of channel R from channel L
9. Circuit arrangement: AGC operation; Hold time
10. Gain curve (out/in response)
11. Test signal for attack/recovery time measurement
12. Output signal (attack transient)
13. Circuit arrangement: Switching noise
14. Low-pass filter characteristics
15. Input level and audio FM deviation (modulation
depth) for various VTR systems
Concerns the measurement of overall characteristics of the FM audio recorded using slanted tracks similar to those used for recording of the video information. BS AMD 8933 RENUMBERS THIS STANDARD
| Committee |
EEL/22
|
| DevelopmentNote |
Renumbered and superseded by BS EN 61041-3. Supersedes 88/25825 DC. (12/2005)
|
| DocumentType |
Standard
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy |
| Standards | Relationship |
| IEC 61041-3:1993 | Identical |
| BS EN 60774-1:1994 | Helical-scan video tape cassette system using 12,65 mm (0,5 in) magnetic tape on type VHS. VHS and compact VHS video cassette system |
| IEC 60268-8:1973 | Sound system equipment - Part 8: Automatic gain control devices |
| IEC 60843:1987 | Helical-scan video tape cassette system using 8 mm magnetic tape - Video 8 |
| IEC 60268-3:2013 | Sound system equipment - Part 3: Amplifiers |
| IEC 61054:1991 | Helical-scan video tape cassette system using 12,65 mm (0,5 in) magnetic tape on type VHS - FM audio recording |
| IEC 61053-2:1991 | Helical-scan video tape cassette system using 12,65 mm (0,5 in)magnetic tape on type Beta format - FM audio recording - Part 2:525 line-60 field systems |
| IEC 60268-1:1985 | Sound system equipment. Part 1: General |
| IEC 60094-3:1979 | Magnetic tape sound recording and reproducing systems - Part 3: Methods of measuring the characteristics of recording and reproducing equipment for sound on magnetic tape |
| IEC 61053-1:1991 | Helical-scan video tape cassette system using 12,65 mm (0,5 in)magnetic tape on type Beta format - FM audio recording - Part 1:625 line-50 field systems |
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