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Re: What Mid-range USB Sound Cards Work with Linux?

From "Martin McCormick" <martin.m@suddenlink.net>
Newsgroups linux.debian.user
Subject Re: What Mid-range USB Sound Cards Work with Linux?
Date 2016-05-24 23:20 +0200
Message-ID <rCrU6-cB-17@gated-at.bofh.it> (permalink)
References <rCpfz-6NU-19@gated-at.bofh.it> <rCpyV-6Uj-15@gated-at.bofh.it> <rCqv0-7wp-17@gated-at.bofh.it>
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Joe <joe@jretrading.com> writes:
> For recording, good signal to noise ratio is important, and the four or
> five internal cards I've used over the years have all been very poor in
> this respect, maybe in the low 40s in dB.
> 
> USB devices I've tried have had much less noise, particularly if the
> audio ground side is linked to the tower case independently of the USB
> cable.

	The inside of a P.C. case is a hostile environment when
it comes to EMI (Electro-magnetic interference.)

	The worst issues I have had are ground loops between the
P.C. case and other grounded devices in which there are a few
millivolts of AC difference between the two so-called Earth
connections. That is why recording studios and broadcast stations
usually use ballanced lines for all their audio connections.

Martin

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Thread

What Mid-range USB Sound Cards Work with Linux? "Martin McCormick" <martin.m@suddenlink.net> - 2016-05-24 20:30 +0200
  Re: What Mid-range USB Sound Cards Work with Linux? deloptes <deloptes@gmail.com> - 2016-05-24 20:50 +0200
    Re: What Mid-range USB Sound Cards Work with Linux? Joe <joe@jretrading.com> - 2016-05-24 21:50 +0200
      Re: What Mid-range USB Sound Cards Work with Linux? "Martin McCormick" <martin.m@suddenlink.net> - 2016-05-24 23:20 +0200
    Re: What Mid-range USB Sound Cards Work with Linux? "Martin McCormick" <martin.m@suddenlink.net> - 2016-05-24 22:40 +0200
    Re: What Mid-range USB Sound Cards Work with Linux? "Martin McCormick" <martin.m@suddenlink.net> - 2016-05-25 03:10 +0200
      Re: What Mid-range USB Sound Cards Work with Linux? Lisi Reisz <lisi.reisz@gmail.com> - 2016-05-25 10:20 +0200
      Re: What Mid-range USB Sound Cards Work with Linux? deloptes <deloptes@gmail.com> - 2016-05-25 11:30 +0200
        Re: What Mid-range USB Sound Cards Work with Linux? Michael Lange <klappnase@freenet.de> - 2016-05-25 12:00 +0200
        Re: What Mid-range USB Sound Cards Work with Linux? "Martin McCormick" <martin.m@suddenlink.net> - 2016-05-25 17:10 +0200
      Re: What Mid-range USB Sound Cards Work with Linux? Jude DaShiell <jdashiel@panix.com> - 2016-05-25 15:30 +0200
        Re: What Mid-range USB Sound Cards Work with Linux? Joel Roth <joelz@pobox.com> - 2016-05-26 05:50 +0200
  Re: What Mid-range USB Sound Cards Work with Linux? Jude DaShiell <jdashiel@panix.com> - 2016-05-25 00:10 +0200
  Re: What Mid-range USB Sound Cards Work with Linux? Håkon Alstadheim <hakon@alstadheim.priv.no> - 2016-05-25 02:00 +0200
  Re: What Mid-range USB Sound Cards Work with Linux? Joel Wirāmu Pauling <joel@aenertia.net> - 2016-05-25 03:30 +0200
    Re: What Mid-range USB Sound Cards Work with Linux? Joel Wirāmu Pauling <joel@aenertia.net> - 2016-05-25 03:30 +0200
    Re: What Mid-range USB Sound Cards Work with Linux? "Martin McCormick" <martin.m@suddenlink.net> - 2016-05-25 04:20 +0200

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