Re: [LAU] Awful noise out of FA-66

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Ken Restivo wrote:
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I plugged my spiffy new linux laptop into an amp tonight and used it
as an instrument with a band, using an M-Audio Axiom49 as a MIDI
controller.

Not everything works yet on this new machine, but what I needed most
for tomorrow night's show (specimen, with a couple specialized
samples), worked fine.

Except for the noise. The FA-66 was producing the most awful, buzzy,
glitchy digital background noise.

I ran the following chain, and got horrible aliasing noise: Laptop ->
 ExpressCard Firewire -> FA-66 -> SWR bass/keyboard amp

The FA-66 is powered by its wall-wart, since the ExpressCard doesn't
power it (even though it is a 6-pin connector).

My question is this. What's up with that awful noise?

When googling around I found at least one other person having the same issue with the FA-66.

I've noticed similar noise at some places with my QuataFire line out's.

Some things to try:
- unplug the power supply of the laptop (for test)
- put a DI box inbetween the amp and the edirol (enable ground lift)
- use another power supply for the edirol (preferably a transformer based one).


Pieter
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