Re: [LAU] Sample rate vs. SNR

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To: <len@...>
Cc: linux-audio-user <linux-audio-user@...>
Date: Wednesday, January 23, 2013 - 11:13 pm

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On Wed, Jan 23, 2013 at 5:10 PM, Len Ovens wrote:

>

Gb NIC sales: in the millions
MADI PCI(e) card sales: low thousands if you are lucky, hundreds if not

> For audio quality, it seems FW, USB and ethernet _could_ give better
results if designed right.

none of them live "on the bus" the way a PCI card can. all of them are
subject to a separate clock, in addition to the audio sample clock and the
PCI bus clock (which is so high a frequency as to be mostly irrelevant).

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On Wed, Jan 23, 2013 at 5:10 PM, Len Ovens <len@ovenwerks.net&=
gt; wrote:

I have been reading what I can on audio interfaces... I am thinking there
are very few good ones. I am thinking that some parts of the system are
vastly over priced like ADAT and MADI interfaces, both of which seem to
cost about 10X (at least) what they should cost... like how come a Gb NIC
is well under $100 and MADI PCI(e) card (100Mb) is $800? =
Gb NIC sales: in the millionsMADI PCI(e) card=
sales: low thousands if you are lucky, hundreds if not> For aud=
io quality, it seems FW, USB and ethernet _could_ give better results if de=
signed right.
none of them live "on the bus" the way a PCI card =
can. all of them are subject to a separate clock, in addition to the audio =
sample clock and the PCI bus clock (which is so high a frequency as to be m=
ostly irrelevant).

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Messages in current thread:
[LAU] Sample rate vs. SNR, Len Ovens, (Wed Jan 23, 2:52 pm)
Re: [LAU] Sample rate vs. SNR, Ralf Mardorf, (Wed Jan 23, 4:43 pm)
Re: [LAU] Sample rate vs. SNR, Joe Hartley, (Wed Jan 23, 8:20 pm)
Re: [LAU] Sample rate vs. SNR, Len Ovens, (Wed Jan 23, 10:10 pm)
Re: [LAU] Sample rate vs. SNR, Florian Faber, (Thu Jan 24, 7:53 am)
Re: [LAU] Sample rate vs. SNR, Len Ovens, (Thu Jan 24, 9:52 pm)
Re: [LAU] Sample rate vs. SNR, Fons Adriaensen, (Fri Jan 25, 1:43 am)
Re: [LAU] Sample rate vs. SNR, Len Ovens, (Fri Jan 25, 2:45 pm)
Re: [LAU] Sample rate vs. SNR, Fons Adriaensen, (Fri Jan 25, 3:21 pm)
Re: [LAU] Sync and digital audio transport, Len Ovens, (Fri Feb 1, 2:38 pm)
Re: [LAU] Sample rate vs. SNR, Ralf Mardorf, (Fri Jan 25, 7:15 pm)
Re: [LAU] Sample rate vs. SNR, Len Ovens, (Sat Jan 26, 2:04 am)
Re: [LAU] Sample rate vs. SNR, Ralf Mardorf, (Sat Jan 26, 9:42 am)
Re: [LAU] Sample rate vs. SNR, Len Ovens, (Sat Jan 26, 3:18 pm)
Re: [LAU] Sample rate vs. SNR, Ralf Mardorf, (Sat Jan 26, 3:26 pm)
Re: [LAU] Sample rate vs. SNR, Len Ovens, (Sat Jan 26, 5:21 pm)
Re: [LAU] Sample rate vs. SNR, Ralf Mardorf, (Fri Jan 25, 2:53 pm)
Re: [LAU] Sample rate vs. SNR, Paul Davis, (Wed Jan 23, 11:13 pm)
Re: [LAU] Sample rate vs. SNR, Charles Z Henry, (Thu Jan 24, 1:14 am)
Re: [LAU] Sample rate vs. SNR, Paul Davis, (Thu Jan 24, 2:31 am)
Re: [LAU] Sample rate vs. SNR, Len Ovens, (Thu Jan 24, 3:48 am)
Re: [LAU] Sample rate vs. SNR, Ralf Mardorf, (Thu Jan 24, 1:32 am)
Re: [LAU] Sample rate vs. SNR, Charles Z Henry, (Wed Jan 23, 10:50 pm)
Re: [LAU] Sample rate vs. SNR, Fons Adriaensen, (Wed Jan 23, 4:17 pm)
Re: [LAU] Sample rate vs. SNR, Len Ovens, (Thu Jan 24, 4:26 am)