User manual
2A-7
ISDN
Dolby
 Fax 
Dolby
 Fax 
PicturePicture
 Existing
Audio Track
Audio
Mixer
Location X
Audio
Timecode
Notes
2 Audio Channels from Y to X (1 used for code)
1 Audio Channel from X to Y.
Incoming audio at Y should be recorded on a
separate medium or one that will allow offset 
synchronisation on relevant tracks.
This system allows off-line working: send
Existing Audio Track and code to location X, 
record tracks to tape/film and send finished
audio back to Y by Dolby Fax or Courier. 
Applications
Post production:
Dubbing to picture
Key
+ Talkback
Location Y
Mic
A
B
B
AA
A
 Mic Amp/
Audio Mixer
Dubbing Sound to Picture
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