How does one find the hidden parameters in the SY22/TG33?

Covering the SY22 to SY55 and TG Modules.

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NoStatic
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How does one find the hidden parameters in the SY22/TG33?

Unread post by NoStatic » Wed Feb 15, 2012 6:07 am

How does one find the hidden parameters in the SY22/TG33?

I purchased (via donation) a great (IMO) SY22 editor from http://www.plompy.co.uk/software/index.html. I was pleasantly surprised to find some interesting features taking advantage of the hidden parameters. Hear are some of the features: Harmonic control (c:m ratio I think), Temperament, Fixed Frequency, C M LFO selection, EG modulator).

I originally became aware of the notion of hidden parameters from Sealed's page regarding the TG33. One intriguing parameter he found was the "alg": 0 = serial, and 1 = parallel (two Carriers) (see http://homepage.mac.com/synth_seal/html/tg33b.html). He was is also able to do some realtime modulation of the FM parameters (listen to samples at http://homepage.mac.com/synth_seal/html/tg33c.html - unfortunately this is not possible with the SY22 because you cannot control a particular parameter via SYSEX, you have to change the parameter and upload the whole voice. This takes too much time to do realtime manipulation). In the case of the TG33, I downloaded the manual with the MIDI specs and I could not locate any information regarding the alg parameter.

So if these parameters are undocumented, how do people find them?

Thanks!



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