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
AB
B
AA
A
Mic Amp/
Audio Mixer
Dubbing Sound to Picture
MAIN