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Groove Analogizer creates drum sounds from an audio input.

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NUSofting’s Groove Analogizer is the latest plug-in to be re-released as freeware. Previously available for $29, it’s yours for nothing as of right now.

Groove Analogizer is a drum synth with a difference: it’s triggered by an audio rather than a MIDI input. As such, it loads as an effect rather than an instrument.

Three oscillators are onboard – each of which has left, right and left+right inputs - and these can be triggered and shaped by any kind of percussive sound, be it mono or stereo. The audio input can be a WAV file or another VST instrument.

Other features include a band-pass filter that enables you to select which frequency range of the audio will do the triggering, and a pre-listening function so that you can monitor the triggering source.

Groove Analogizer can be downloaded directly from the NUSofting website. It runs as a Windows VST plug-in.