I've been searching for hours, tried everything, and nothing has worked.

From a prompt, this does not cause a chirp in the output:
[code]ffmpeg -i test.mp3 -acodec libmp3lame -b 192k test-out.mp3[/code]

Yet the same command-line (-f mp3 instead of -i) in kdenlive causes a chirp. If I render two mp3s, there are two chirps - it just happens at the beginning of mp3 playback and then the mp3 plays as normal.

I experience the same problem in another software, so it's not necessarily kdenlive's fault, but I'm at a loss as to where to begin changing things to progress on this.

I've re-installed PulseAudio, changed the Playback settings to each of the manual options in kdenlive, etc.

The problem also, of course, happens when rendering the mp3s as tracks in any video in any format. I am on Ubuntu 10.04 Lucid/64 on a Gateway DX4720-03. Thanks for any advice. :)

This was fixed with an upgrade from Ubuntu 10.04 to 10.10 and (possibly) a further resulting kdenlive upgrade

I figured it might have been the melt-ffmpeg interface... since the problem happened in other programs, too.

Loving kdenlive