Acoustic Echo Cancellation

pgb · 14th August 2006, 10:55

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 · 14th August 2006, 11:21

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 · 16th August 2006, 09:35

I had a feeling that might be the case.

Thanks!

14th August 2006, 10:55	#1 \| Link
pgb Friendly Coder Join Date: Jun 2005 Posts: 18	Acoustic Echo Cancellation 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.

14th August 2006, 11:21	#2 \| Link
Mug Funky interlace this! Join Date: Jun 2003 Location: i'm in ur transfers, addin noise Posts: 4,555	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. __________________ sucking the life out of your videos since 2004

16th August 2006, 09:35	#3 \| Link
pgb Friendly Coder Join Date: Jun 2005 Posts: 18	I had a feeling that might be the case. Thanks!