[sdiy] multiplier questions/experiments AD633

dan snazelle subjectivity at hotmail.com
Wed Oct 27 20:42:29 CEST 2010


thanks Harry,  that was what i started with.
ring mod is so easy with the ad633!  i was just sort of hoping there would be other really weird sounding functions of multipliers...but i suppose if there were tons of really weird sounding functions
they would be more commonly mentioned!






On Oct 27, 2010, at 2:32 PM, Harry Bissell wrote:

> If you take a four-quadrant multiplier, and feed it two
> audio rate signals, it makes a great "ring modulator"
> sound...
> 
> <lol>
> 
> H^) harry
> 
> 
> ----- Original Message -----
> From: dan snazelle <subjectivity at hotmail.com>
> To: synth-diy DIY <synth-diy at dropmix.xs4all.nl>
> Sent: Wed, 27 Oct 2010 14:26:28 -0400 (EDT)
> Subject: Re: [sdiy] multiplier questions/experiments AD633
> 
> its interesting, these circuits are coming out FUZZED.
> 
> 
> I will try some control voltages and see if they work better than AUDIO.
> 
> 
> of course I want to see what else is possible with multipliers....going through the non-linear handbook looking for stuff...any ideas?
> 
> 
> 
> thanks
> 
> 
> On Oct 27, 2010, at 2:12 PM, Tim Parkhurst wrote:
> 
>> On Wed, Oct 27, 2010 at 8:24 AM, dan snazelle <subjectivity at hotmail.com> wrote:
>>> so i setup some ad633 circuits this morning.
>>> 
>>> However, to my surprise, many of the circuits shown (squaring, doubling,  inverse functions) don't really do that much to synth waveforms.
>>> 
>>> I was feeding the Ad633 with various waveforms.
>>> 
>>> SO if anyone here has a lot of experience with multipliers or with the 633, I'd love to know if square root, division, etc circuits have a place in the synth world.
>>> 
>> 
>> I agree with Tom, try feeding in a couple of sine waves and then
>> listen for differences. Other waves (saw, etc.) probably give too much
>> harmonic content at the output (who would have thought that could be a
>> bad thing). Still, my bet would be that they are going to all sound
>> very similar. Where you might see some differences would be with LFO
>> signals and control voltages. Are the circuits DC capable?
>> 
>> Tim (it's hip to be squared) Servo
>> -- 
>> "Sire, the church of God is an anvil that has worn out many hammers."
>> - H.L. Hastings
>> 
> 
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> -- 
> Harry Bissell & Nora Abdullah 4eva
> 




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