Fostex 3070 - Page 16

you'll be able to experiment by using the equalizer to trigger
the compressor, so that only selected frequencies, for example,
are processed by the 3070.
Another, more familiar effect is perhaps best described as
"vocal punch-through," where a lead vocal suddenly seems to
break through a loud crescendo or a "wall of sound." By connec¬
ting the vocal mic directly to the detector circuit of the 3070,
the vocalist now controls the compression circuit.
Other signals, sub-mixes, instruments and music can be set
to control the VCA for a limitless variety of audio effects.
And while creativity can be wildly imaginative, it can also be
very practical.
Consider the following use of the detector circuit:
Suppose you want a keyboard to come up in level as soon as the
guitar solo ends (and who knows when that will be). Just patch
the guitar to the detector in/out and adjust the controls so
that you have, effectively, an automatic cross fade.
Since this is a novel feature open to infinite creative
possibilities, we would be genuinely interested in learning
about your particular success in using this circuit.
For that matter, if you find a particular sound with the
3070 that you think is great, please send us the details and
we'll be happy to pass the information along to other people
like you who are interested in getting the most out of today's
technology.
6. SPECIFICATIONS/BLOCK DIAGRAM
Input
Input Impedance
Input Level
Output
Output Load Imp.
Max. Output Level
Gain
Comp./Limit Ratio
Unbal. Phono jack and Phone jack
30 Kohms
+30 dBV(30V) max
Unbal. Phono jack and Phone jack
5 Kohms or higher
+18 dBV{8V)
30 dB
1:1 - inf.:l, Variable comp, ratio
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