Subject: Re: [LAU] rme fireface 400 on debian?

From: Pieter Palmers <pieterp@...> · Date: Wednesday, February 13, 2008 - 6:05 pm

Arnold Krille wrote:

quoted text> Am Mittwoch, 13. Februar 2008 schrieb Malte Steiner:

>>> good to hear about latency issues as I'm still considering a firewire

>>> hardware device for laptop use - and for mobility, sturdy, public space

>>> and traveling use.

>>> the search goes on...

>> So I guess you have one with PC EXpresscard so PCMCIA is not a solution,

>> or? One thing particular for laptop use: Depending on the model you might

>> encounter the laptop humming noise and buzz. Some models are better but the

>> only way to get rid of it for once and all is to decouple the

>> converters from the computer via optical transcievers, for instance ADAT

>> compatible connection for multichannel.

>

> Or by lifting the ground on the XLR connections between the device and the

> mixer/pa.

>

> I am also thinking about experimenting with lifting the ground on the

> firewire. What do the experts say about that?
I have been thinking about that too, but one of the showstoppers is the

fact that firewire uses common-mode signaling for low-speed communication.
I have to look into it further though.
Pieter

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