What is the type of audio signal output from DVD?

[mqwhale]

Is it Floating Signal or Ground-Referenced Signal?

If I acquire this signal ,which is the best way of test?

RSE? NRES? DIFF?

Thanks!

[shoneill]

It depdends on the implementation of your DVD player.

If available, I would look into getting the data via optical connection, this way you can basically define the scheme yourself.

Shane