Acoustic Echo Cancellation

[pgb]

Morning all,

I've done a search, but couldn't find anything relevant. Are there any free tools out there for doing acoustic echo cancellation on audio files?

TIA.

[Mug Funky]

not in this lifetime :)

cancelling echoes requires (near) complete knowledge of the room the audio was recorded in. anything else is a guess.

however, you can "push down" an echo using a fairly gently acting noise gate (dynamic compressor/expander).

audacity (free) might be able to handle it. i use Audition (not free) for this kind of stuff.

additionally you can try a heavy noise/hiss reduction - it'll remove echo as well, but you'll probably end up with a "tin can" sound.

[pgb]

I had a feeling that might be the case.

Thanks!