Is there a way to set up a compression VST on the default input of my mac? e.g. I want to make a skype call and I have my USB soundcard as mic input, is there a way to set up the default input as my soundcard passing through a compressor (for high gain purposes)?

  • what you want is a standalone compressor. Sometimes soundcards also includes mixer + effects (which is apparently not your case). I can't answer precisely to your answer but it is possible. Note that skype already compress your sound. Best !
    – JSmith
    Commented Jul 13, 2016 at 10:58

1 Answer 1


Your question is very unclear, however, unless your undefined 'USB soundcard' has an AU-compatible front-end or its own input gain stage, then you'd have to use something like Audio Hijack.
You can't easily use VSTs on the input without an ASIO/VST controller & even then, they would normally be strapped to the output... which you would then need something like Audio Hijack to re-route...

[Previously, SoundFlower (freeware) would be the go-to solution, but since Mavericks it is no longer stable]

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.