[sdiy] CMOS additive synthesis

Scott Gravenhorst music.maker at gte.net
Sun Oct 14 23:01:39 CEST 2001


matti <matti at devo.com> wrote:
>Scott G. did something like this in his fatman mods. The master oscillator
>and the divide/multiply anyway.

Probably this:
http://home1.GTE.NET/res0658s/TekLab_FatMan_WebSite/4046pll.html 

>Also a 4-bit shift register clocked from
>this master oscillator. 

Probably this:
http://home1.GTE.NET/res0658s/TekLab_FatMan_WebSite/complex_wave_gen.html

This could easily be driven by a CMOS oscillator.

Both of these are made of mostly CMOS.

>I don't have the addy offhand. darn me. Check the
>archives.
>
>
>
>On Sun, 14 Oct 2001, Tim Escobedo wrote:
>
>> MIME-Version: 1.0
>> Content-Type: text/plain; charset=us-ascii
>>
>> Some of the threads in the past few days and weeks about CMOS
>> oscillators, suboctaves and additive synthesis has had me thinking of a
>> somewhat additive synth module using a square VCO "master oscillator"
>> driving something like a 4024 to get six suboctaves, with a dedicated
>> EG for each six of the outputs, all feeding a 4049 hex vca. Oh, and
>> throw a inverter SVF in there, too. Seems it could get some nice
>> animated waveforms. Anyone try this before? Tips? Ideas?
>>
>
>-
>finland red
>germany black
>egypt white
>

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