David Santamauro wrote:
Since upgrading my audio PC to 64-bit,
Hardware or software upgrade?
the delta 1010 analog inputs emit a constant 'hiss' -36 -30dB. Analog outputs and digital ins and outs are fine. The delta 1010 from a hardware perspective is fine as I tested it on the same pc hardware under windows7 64-bit.
In theory, this sounds like a driver bug.
So far, I have tested it in a 32-bit fedora, 32-bit windows vista and 64-bit windows7 all successfully. This problem arises only in 64-bit fedora.
Does the 32-bit Linux use the same driver version? If yes, then it's possible that the 32-bit and 64-bit kernels configure the PC differently; for example, there might be noise on the power line due to a different kind of power management.
Regards, Clemens