Asus D2X - Manual (Page 87)

81 ASUS Xonar D2X
Q10: Why is the sample rate of the original music file changed after the file is
converted by PMP into a WMA file?
Answer:
The sample rate of a WMA file must be limited at 44.1KHz.
Q11: Why is the ALT recording volume reduced?
Answer:
If you connect a device, such as a headphone or speakers, the device will reduce
the recording volume. When the situation happens, remove the device and try the
function again.