simple distortion

sequencer · 28 Jun 2006

Hi Mark

I don't post here that often (too much to do in too little time) but I like to help when I can.

I've come across an article or two about distortion in the past, unfortunately I have only retained one of them for reference but hopefully it may be of use. Just follow the link:

http://users.sa.chariot.net.au/~gmarts/ampovdrv.htm

Cheers

sequencer 🙂

P.S. Welcome to Synthmaker

angstrom · 28 Jun 2006

Sambean has a waveshaper on the forum somewhere which is a good starting point for a distortion. Just draw the curve you want.

a little EQ and a 'pre-amp' will help.

markdeaton · 29 Jun 2006

Thanks Angstrom, I found the schematic you were talking about. It works great and I had a great time last night learning how audio is manipulated by sine waves. I added a band pass filter, dropped the Tube Screamer (TSS) VST in front of it and a cabinet emulator behind it and wow. I had no idea a simple sine wave could create distortion like that.

angstrom · 29 Jun 2006

heh yeah, one of the most amusing distortions is simply

streamin in; streamin drive streamout out; in=in*drive; out=sin1(in);

(in the code component), very high levels of drive make incoming waves fold back around multiple times and produce great artificial harmonics

markdeaton · 29 Jun 2006

Thanks. Now I need to learn the basics of speaker emulation. Yikes 🙂

markdeaton · 29 Jun 2006

I've collected some speaker simulation schematics for your viewing pleasure, the first one being the most basic (and probably my first undertaking)...

http://www.scopeboy.com/ssim.html

http://www.runoffgroove.com/condor.html

http://home3.netcarrier.com/~lxh2/marsh.html

Google image search: http://images.google.com/images?svnum=1 ... +schematic