IO Filter
Best for Sound designers who want long, programmable filter movements and multistage rhythmic filtering in a Windows VST.
Free alternative to 
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Key Features
- Paraphonic multimode filter
- Low-pass, high-pass, band-pass, and peak modes
- Up to four cascaded stages
- Envelope with up to 32 stages
- Loopable or one-shot operation
- Host-BPM synchronization
Description
IO Filter is a paraphonic multifilter from B. Serrano driven by a programmable envelope. It offers up to four cascaded filter stages, 32 envelope stages, looping or one-shot operation, and host-BPM synchronization.
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Frequently Asked Questions
What makes IO Filter paraphonic?
The effect uses a programmable GUI envelope to drive filtering over time.
How many filter stages can be chained?
The listing supports up to four cascaded filter stages.
Can the envelope sync to tempo?
Yes. Host-BPM synchronization is included.
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