Oversampling And Better Drive Knobs

I couldn't leave the preamp alone. Yesterday's release went out and I immediately started hearing the places where the saturation was being a little too aggressive on high transients - aliasing creeping in on cymbals, that kind of thing. Classic nonlinear processor problem.

So tonight I wired 2x oversampling into both the tape saturation and the preamp modelling stages. Everything nonlinear now runs at double rate and gets filtered back down, and the difference is real - cleaner top end, less harshness, the harmonic content the preamp is supposed to add now actually sounds like harmonics instead of noise.

While I was in there, I reshaped the response of the preamp emulation to add more musical upper harmonics, and rescaled the drive and saturation controls so the knobs behave sensibly across their range. Before this, the useful range of the drive knob was basically between ten and thirty percent, which is a classic sign of bad scaling. Now you can actually sweep it and hear something interesting happen at every position. That's how a good analog-inspired control should feel.