IEC 60774-2:1999
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Helical-scan video tape cassette system using 12,65 mm (0,5 in) magnetic tape on type VHS - Part 2: FM audio recording
Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users
English - French
25-11-1999
FOREWORD
1 Scope
2 Normative references
3 Recording method
4 Mechanical configuration
4.1 FM audio track pattern
4.2 Head azimuth angles
4.3 Recording time difference
5 Recording characteristics
5.1 Noise reduction
5.2 Pre-emphasis
5.3 Carrier centre frequency
5.4 Frequency deviation
5.5 Modulation polarity
5.6 Recording level
6 Other subjects (channel application)
Annex A (normative) Encoder transient measurement method
Figure 1 - Track arrangement
Figure 2 - Pre-emphasis frequency response
Figure 3 - Signal spectrum
Figure 4 - Block diagram of FM audio recording
Figure 5 - Block diagram of noise reduction system
Figure A.1 - Encoder transient measurement method
Table 1 - FM audio track dimensions
Table 2 - Head azimuth angles
Table 3 - Carrier centre frequencies
Table 4 - Channel applications
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