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Posted by blackburst@aol.com on 12/06/06 16:14
Rick Merrill wrote:
> We are indeed intending to get a compressor. Does it matter which one
> we get???
For TV, the ones with fewer controls are better. dbx used to make one
with ONE control "more" or "less". Gotta love it.
Look at dbx, Aphex, Fuhrmann. Compellor, Levellor, that sort of thing.
In my day job, I feed out 4 access streams, all in stereo, so I needed
8 channels of compression. I bought 2 Behringer MultiCom Pro XLs. They
also have a built-in peak limiter.
First, make sure you have your input and output settings correct: The
output of most cable equipment (Leightronix, for example) is -10db
unbalanced. You Cadco mod can also work with -10db unbalanced.
With the compressor switched "out", start with your input and output
levels at the 12 o'clock position, then increase the output level of
the compressor until the input meter on the mod is just below the point
where the color changes.
Then switch the compressor "in". For cablr, you want the fastest
possible attack and release times. Set the ratio at about 3:1.
Listening through phones to the audio as it sounds on the air, start
sneaking the threshhold counterclockwise from -10. The audio will get
lower in level, but smoother.
When it is smooth enough, turn the output level up while switching the
compressor "in and "out", so that the "in" in volume is approximately
the level of the "out" volume.
If your compressor also has a peak limier, start turning the knob
counterclockwise, until the LED just barely lights on the loudest peaks
of the sound.
One generally uses the compressor more aggressively on TV (and
especially access) than on audio recording.
I think you said you're in MA. If you run into any problems or
confustion, contact me and I'll come over and set it up for you.
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