IMHO your problems is your mixer settings.
Do you get the hum with a nominal audio track ? ie mp3 or wav or avi file?
If not, and if it comes from recording, then you need tune your settings there.
IMHO your problems is your mixer settings.
Do you get the hum with a nominal audio track ? ie mp3 or wav or avi file?
If not, and if it comes from recording, then you need tune your settings there.