Opposite of noise gate? + Lame question...

[abowyerlowe at mindscape.com]

>>You need two noise gates... Put your drum machine into the external key of the
>>first, and put a constant tone into the input of the first... (In the UK an
>>easy way to get a constant tone is to leave your 'phone off the hook).
>>Then put the output of the first gate into the key input of the second, and 
>>the real signal into the audio input of the second gate...
 
>> Voila! An inverse noise gate... Modular logic wins again...

>I don't see how this would work.  In the first gate you replaced the key 
>input with a dial tone, and then used the output as a key for the other gate.
>Despite a few possible minute changes in envelope, this would be the same 
>as just using one gate with one key input.  What you describe would not 
>replace a ducker.

You are of course right... I'm sure that at the time of the post I had an idea 
of how to use a noise-gate to get a 'minus' output, but maybe I was intaking of 
too much MK-Ultra...

On another point entirely, what is the difference between the linear and 
exponential inputs on VCOs? Is it that (assuming a 1v/octave vco), putting twice
the voltage into the exponential fm input will result in a one octave increase, 
whereas in the linear fm input doubling the voltage will have results depending 
on the base voltage? In that case, what use is the linear fm input?

(As you can tell, I'm not too hot with electronic-thinking in the mornings).

Thanks,
Anthony.
--
Anthony Bowyer-Lowe. Audio Programmer @ Mindscape (UK).
Wanted: fly/flea/bee/buzz samples...