Hi, Chris. Echo’s one of those things you can’t really get rid of. I read about this filter, played around with it a bit and maybe it can help a little.
Open the audio in Soundtrack Pro. There’s a filter you get to through the Process Menu > Effects > Dynamics > Enveloper > Show User Presets (twirl them open) > Roomkiller. It works a bit like a noise gate – maybe a bit more sophisticated. Play with the threshold, attack and release time, and negative gain (the gain control to the right). Maybe the addition of a little audience ambiance might help mask the echo. Good luck.
John
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