Partials sweeper
Posted: Sat Jul 07, 2007 3:29 pm
Well, I was in the need of relax after the gate maze of the last patch.
So there's a simple but cool sounding modular device.
It's an harmonic sounding one this time, based on a highly resonant band pass filter sweeping thru 4 partials, up a stairway obtained using a multisegment env. Each stair returns a value by which the cutoff coincides with the frequency of one of the oscillators.
The fifth stair event coincides, on the tempo line, with the 5th note of 16th lenght at 120 BPM (edited: sorry, actually it's the 7th quaver) ; not all the stairs are exactly equal, the way the sweep goes on like coming loose. This setting also fits 80 BPM (x12th lenght). It can be fastened or slowed down using the time modulation knob on the envelope even without any control signal connected to it.
For the use as lead sound i've added sort of click at the key release, mixed with the sound before the poly out. It helps make a reverse like effect when notes are released before the end of the envelope time, and gives a sort of retro or low-fi flavour togheter with another trick that occurs with the last partial.
The amplitude modulator is intended for modulation wheel use.
I experimented a bit with osc frequencies, but not with different waveforms nor with other oscillator alchemies, so if anyone have hints about, or wanna try to improve the sound, these are welcome things.
Let me know
_johnny
So there's a simple but cool sounding modular device.
It's an harmonic sounding one this time, based on a highly resonant band pass filter sweeping thru 4 partials, up a stairway obtained using a multisegment env. Each stair returns a value by which the cutoff coincides with the frequency of one of the oscillators.
The fifth stair event coincides, on the tempo line, with the 5th note of 16th lenght at 120 BPM (edited: sorry, actually it's the 7th quaver) ; not all the stairs are exactly equal, the way the sweep goes on like coming loose. This setting also fits 80 BPM (x12th lenght). It can be fastened or slowed down using the time modulation knob on the envelope even without any control signal connected to it.
For the use as lead sound i've added sort of click at the key release, mixed with the sound before the poly out. It helps make a reverse like effect when notes are released before the end of the envelope time, and gives a sort of retro or low-fi flavour togheter with another trick that occurs with the last partial.
The amplitude modulator is intended for modulation wheel use.
I experimented a bit with osc frequencies, but not with different waveforms nor with other oscillator alchemies, so if anyone have hints about, or wanna try to improve the sound, these are welcome things.
Let me know
_johnny