Re: [LAU] USB audio interfaces >= 8 channels

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To: <linux-audio-user@...>
Date: Tuesday, May 15, 2012 - 4:10 pm

On Tue, May 15, 2012 at 12:07:36PM +0200, Robin Gareus wrote:

> It has only balanced outputs but otherwise fits the bill.

Usually you can use them as unbalanced. In some cases this
requires a special cable, but that's unlikely.

> What seems weird with with this box: it has a word-clock out but no

Not a real one, but it will sync to SPDIF or ADAT.

> What is not clear to me is

Better not. Ground lifting can damage your inputs unless

1. the inputs are physically isolated by a transformer
(not the case),

2. the common mode voltage (the difference between the two
grounds) is small.

Unless you have transformer isolation, you need a more or less
common ground. And then, if the inputs are really balanced and
you use balanced cables, there is no need to lift the ground.

Ciao,

--
FA

A world of exhaustive, reliable metadata would be an utopia.
It's also a pipe-dream, founded on self-delusion, nerd hubris
and hysterically inflated market opportunities. (Cory Doctorow)

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Messages in current thread:
[LAU] USB audio interfaces &gt;= 8 channels, Robin Gareus, (Tue May 15, 10:07 am)
Re: [LAU] USB audio interfaces >= 8 channels, Fons Adriaensen, (Tue May 15, 4:10 pm)
Re: [LAU] USB audio interfaces &gt;= 8 channels, Robin Gareus, (Tue May 15, 6:44 pm)
Re: [LAU] USB audio interfaces &gt;= 8 channels, Fons Adriaensen, (Tue May 15, 8:59 pm)
Re: [LAU] USB audio interfaces &gt;= 8 channels, Paul Davis, (Tue May 15, 10:34 am)
Re: [LAU] USB audio interfaces &gt;= 8 channels, Robin Gareus, (Tue May 15, 10:41 am)
Re: [LAU] USB audio interfaces &gt;= 8 channels, Fons Adriaensen, (Tue May 15, 12:36 pm)
Re: [LAU] USB audio interfaces &gt;= 8 channels, Robin Gareus, (Tue May 15, 1:31 pm)
Re: [LAU] USB audio interfaces &gt;= 8 channels, Clemens Ladisch, (Tue May 15, 6:03 pm)
Re: [LAU] USB audio interfaces &gt;= 8 channels, Robin Gareus, (Tue May 15, 11:24 pm)
Re: [LAU] USB audio interfaces &gt;= 8 channels, Paul Davis, (Tue May 15, 8:16 pm)
Re: [LAU] USB audio interfaces &gt;= 8 channels, Robin Gareus, (Wed May 16, 9:28 am)
Re: [LAU] USB audio interfaces &gt;= 8 channels, Fernando Lopez-Lezcano, (Wed May 16, 11:13 pm)
Re: [LAU] USB audio interfaces &gt;= 8 channels, Paul Davis, (Wed May 16, 2:14 pm)
Re: [LAU] USB audio interfaces &gt;= 8 channels, Fernando Lopez-Lezcano, (Tue May 15, 5:10 pm)
Re: [LAU] USB audio interfaces &gt;= 8 channels, Emanuel Rumpf, (Tue May 15, 8:52 pm)
Re: [LAU] USB audio interfaces &gt;= 8 channels, Fernando Lopez-Lezcano, (Tue May 15, 5:11 pm)
Re: [LAU] USB audio interfaces &gt;= 8 channels, Paul Davis, (Tue May 15, 11:03 am)