> /usr/bin/ffmpeg -i infile.mp4 -f mp4 -vcodec libx264 -vpre medium -acodec libfaac -g 15 -r 15 -b:v 360k -ar 22050 -b:a 48k -async 2 -vsync 1 -s 512x288 -t 900 outfile.mp4 2>&1 Have you tried with 44Khz audio? -roger-