I've been using faac via ffmpeg on 64 bit ubuntu 8.04 LTS and have had faac hang when up sampling audio from 8000 Hz to 44100 Hz. When I up sample from 8000 Hz to 22050 Hz everything seems fine.. At least this has been my experience so far.

Has anyone else had this experience? Does anyone have any answers to getting around or working through this issue?

Thanks!