Joined: 10 Nov 2006
|Posted: Mon Nov 12, 2012 11:44 am Post subject: How to mitigate an echo
|Everyone who likes to record audio will someday encounter this echo
problem. Audio software can do a lot, but not remove an already
recorded echo. An awkward situation, but hey most of us have learned
to live with it.
At the time and place of the recording there are all kinds of
precautions possible, like special mics and acoustic foam enclosures.
The only thing Amadeus (or any audio software) can do, is improve
intelligibility by filtering out unnecessary parts of the signal.
Probably institutions like the CIA have a special computer that can
remove echo, at a very special price.
Gerard Bik grafische vormgeving
Van Aerssenstraat 263
2582 JM Den Haag
Amadeus forum mailing list
Unsubscribe / change settings at http://two.pairlist.net/mailman/listinfo/forum_list
Joined: 07 Feb 2008
Location: Southern California, USA
|Posted: Thu Nov 15, 2012 8:56 pm Post subject: room echo
I've run into the problem on interviews recorded in acoustically "live" rooms (conference rooms, hotels, etc.) and, you're right, there's no easy solution. Sometimes noise reduction can help as echo is part of the ambience. I've found the NR in Izotope RX works pretty well. Another thing to try is EQ. A lot of room echo/ambience seems to be in the low end. Set up a high pass curve that starts reducing lows from around 150hz and you might hear an improvement. Slide the curve back and forth to find a range that reduces your echo. Won't be "studio," but it could help.