[.uhm] Beginner Questions

[Chris-S]

Hi and happy x-mas,

This script should give a very quiet (-50 dB) saw, but it has normal loudness. What's wrong?

Code: Select all

// create a 256-frame filtered sawtooth
NumFrames = 256
Wave "lowpass(2*phase-1, table , 0.0)"
Normalize Base=each Metric=Peak dB=-50

Also tried without success Base=all, Metric=RMS.

[Urs]

Hehehe, I think Hive's oscillators have a built-in automatic RMS correction so that all wavetables are normalised...

I do not recall atm why I added normalisation to .uhm then... probably because it's supposed to be for more than just Hive Oscs...

[Chris-S]

Ok, it's working when normalising single frames (using start/end).

[Urs]

Yes, the normalise in the osc is over the whole table. Individual frames can stay silent this way.

[Chris-S]

Hi, is it possible to do a "bend saw" in uhm? What would be the technique?
Phase distortion?

bendsaw.png

[Chris-S]

Ok, here my take on it:

Code: Select all

Info "Bend Saw"
NumFrames = 101
Envelope curve=linear L0=-1 T1=0.5 L1=0 T2=0.5 L2=1
Wave start=0 end=100 "env(phase+0.5*(.5-table)*sin(phase*2*pi+.85*(.5-table)*sin(phase*2*pi)))"

Bild1.png