I programmed myself some toms because I couldn't find any online, and how can I create any psychedelia or prog rock pomposity without a few good tom sounds? There's a bit of background on pitched drums here and here, but the technique I ultimately used is explained best here. Basically there's a noise impulse going through a set of bandpass filters (formants). The formants have a slight descent in frequency during the decay. I decided to distort the noise impulse for a more even tone; that's what the ridiculous [expr~] object is doing. I could have just multiplied and clipped, but I decided to play around with logic instead. (I'm sure having a special case for a value of 0 is totally unnecessary, but what the hell.)  hitom.pd Sound samples: ogg mp3  lotom.pd Sound samples: ogg mp3 back |