[sdiy] Random Timbre Synth

Scott Gravenhorst music.maker at gte.net
Sat Aug 20 14:34:09 CEST 2011


Adam Inglis <21pointy at tpg.com.au> wrote:
>Sounds good!
>so apart from the filter at the output, there's no variable filtering  
>in that piece?
>
>I suppose you adjust how many midi clocks it counts before it changes  
>- maybe that count could be sequenced also, for different rhythm  
>patterns and accents.
>I'd like to hear it with portamento.

There are more samples in this thread:

http://electro-music.com/forum/viewtopic.php?t=49132

Yes, there is a MIDI clock divider that I can set from 1 to 128 (right now).  The
waveform changes when the divider counts down to zero.  MIDI start resets the counter
to zero, so if you have control over MIDI clocks, you have control over when the
waveform changes.

There is only a single pole lowpass IIR filter at the synth output to limit high
frequency content.  This filter has essentially fixed cutoff, but can be set by the
patch editor.  The harmonic changes come solely from the fact that the waveforms are
generated by pseudorandom means.

>cheers
>Adam Inglis
>
>
>On 20/08/2011, at 12:16 PM, Scott Gravenhorst wrote:
>
>> I've been working on this:
>>
>> http://jovianpyx.dyndns.org:8080/public/FPGA_synth/ 
>> RandomTimbreSynth.html
>>
>> Here is a sample:
>>
>> http://electro-music.com/forum/download.php?id=27272
>>
>>
>>
>> -- ScottG
>> ______________________________________________________________________ 
>> __
>> -- Scott Gravenhorst
>> -- FPGA MIDI Synthesizer Information: 
>>    jovianpyx.dyndns.org:8080/public/FPGA_synth/
>> -- FatMan: 
>>    jovianpyx.dyndns.org:8080/public/fatman/
>> -- NonFatMan: 
>>    jovianpyx.dyndns.org:8080/public/electronics/
>> -- When the going gets tough, the tough use the command line.
>>
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>>
>

-- ScottG
________________________________________________________________________
-- Scott Gravenhorst
-- FPGA MIDI Synthesizer Information: 
   jovianpyx.dyndns.org:8080/public/FPGA_synth/
-- FatMan: 
   jovianpyx.dyndns.org:8080/public/fatman/
-- NonFatMan: 
   jovianpyx.dyndns.org:8080/public/electronics/
-- When the going gets tough, the tough use the command line.




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