gain selection allows you to boost the audio level in software. this applies only to digital audio sources (aes/ebu, dv, and embedded sdi).analog audio sources (unbalanced and balanced audio) have hardware gain, controlled by the volume slider on the mixer applet).

    the default value of 2 is sufficient for recording from most sources including camcorders, cd players, and walkman radios. if you have audio sources that are at lower levels, increase the gain value. the registry values which control this are below. the x stands for the device number of the osprey-540 card. numbering starts at 0, so the first osprey-540 is device 0.

    hkey_current_user\software\osprey\osprey2000\devicex\audio\gain

    the default value of gain is 2. set it higher for increased software audio gain. set it below 2 to decrease gain.