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Re: head tones

The term "Head Tones" refers to audio 
alignment tones, ususally in the form of a 
1Khz sine wave recorded at whatever 
reference level  the format that you are 
recording on. On a D1 tape, the 
reference level is -20 Dbu. The head tones 
are recorded at the start of the tape, 
usually accompanied by color bars if it is a 
video tape. 

Dave Satin
Executive Vice President       212.226.7474/V
Director of Engineering        212.941.0439/F
SMA Video Inc.

100 6th Avenue 10th Floor
New York, N.Y. 10013-1689

Thanks to Steve Robinson and Phil Voss for support in 1998.
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