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 Butterfly by SIR Audio Tools is a Virtual Effect Audio Plugin. It functions as a VST Plugin and an Audio Units Plugin.
Product Butterfly
Developer SIR Audio Tools
Price (MSRP)
Contact SIR Audio Tools
Type / Tags
Plug-in, App & Soundware Format(s)
Operating System Availability
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Max. 6 items
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Butterfly is a unique audio plugin for special purposes. You can convolve up to 16 input channels with up to 25 impulses in a free configurable way. This product was developed based on specific customer requirements, instead of using several instances of SIR2 you can create complex multi-channel convolution setups very easily.


  • 16 in- / 16 output-channels.
  • loads up to 25 impulses. Supported file formats: WAV, AIF, FLAC.
  • Preset manager.
  • define volume / pre-delay / high- and low-cut for each impulse channel individually.
  • set up which input/impulse convolution should added to which output channel, with a free configurable matrix.
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