de la Mancha has announced that its unstable pitch modulation effect plug-in is now available as freeware.

de la Mancha unstable

unstable likes to mess around with your audio pitch, with 3 subtle pitch modulation modes to simulate the unpredictable but lovable pitch instability of an old tape machine or an analogue synth.

It doesn’t only do subtle though, you can also put it in ‘insane’ mode if you’d rather just FSU

The plug-in is available as freeware for Windows (VST).

More information: de la Mancha / unstable