DSP: Modulation and Distortion

simple pitch-shifting and waveshaping

Links

Applications and Examples

We only used one basic scorefile in class, and modified it to use different types of interpolation (TRANS vs. TRANS3) and different pitch-shifts, etc. The waveshaping examples we touched towards the end of the class are in the RTcmix documentation .

Here is the scorefile we used:

rtsetparams(44100, 2)
load("TRANS")

rtinput("whistle.aiff")


TRANS3(0, 0.25, translen(1.5, -0.51), 1, -0.518, 0, 0.0)
TRANS3(0, 0.21, translen(1.5, -0.51), 1, -0.50871, 0, 0.2)
TRANS3(0, 0.27, translen(1.5, -0.51), 1, -0.5103, 0, 0.8)
TRANS3(0, 0.15, translen(1.5, -0.51), 1, -0.51, 0, 1.0)

and here is the "whistle.aiff" soundfile:

whistle.aiff

But you should feel free to use your own!