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LP-filter sweeps SIN-wave.wav

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gis_sweden

April 25th, 2016

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Sound effects > Experimental

Test of how Uoki-Toki Polivoks VCF handles SIN-wave. I tune the module I use as SIN-oscillator (Intellijel µVCF) to ca 270Hz. I connect it to Uoki-Toki Polivoks VCF. I let a sin LFO sweep the filter, CV1 pot at ca 70%.

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2
analog
modular
Patch
synth
synthesizer
VCF
VCO

Type

Wave (.wav)

Duration

0:09.389

File size

809.0 KB

Sample rate

44100.0 Hz

Bit depth

16 bit

Channels

Mono

Comments
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gis_sweden

9 years, 9 months ago

I had resonance at 50%. I guess it is at the “end points” (max amplitude) of the LFO-wave the filter “screams”. I attenuated the LFO and the interesting sounds disappeared.

AlienXXX

9 years, 9 months ago

This is a really interesting sound.
How high was the resonance on the Polivoks filter? I imagine it was quite high...
Looks like when the cutoff frequency sweeps through the oscillator frequency the filter saturates and goes into kind of a foldback distortion (which is quite harsh).

Could you attenuate the oscillator and see if you can get the filter to saturate only slightly?

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  2. 2 comments
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