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RE: Or get the clock out of the PC

Posted by Jim F. (A) on January 12, 2009 at 08:05:04

In Reply to: Or get the clock out of the PC posted by Jim F. on January 12, 2009 at 01:18:56:

I assume, BTW, that part of the popularity of USB DACs is
that they also allow the word clock to be local to the DAC,
while leaving the USB interface to buffer the data from
the computer asynchronously. However, most of them are
limited to 44.1 kHz, with the newer hardware supporting (only)
up to 96 kHz.

Some of the pro Firewire interfaces have built-in
DACs and can go up to 24/192. I'm thinking of something
like the Prism Orpheus (though that's $5100 for 8 channels,
and includes such features as microphone preamps, so
it might be considered something of a waste for 2-channel
audio).

(Some of the professional Firewire units, BTW, can also be
configured via their control-panel software while the unit is
connected to the computer via the Firewire, and then
**detached** from the PC to use as a stand-alone DAC.
Interesting option.)

I had a bad experience a couple of years ago with an
(admittedly low-end) M-Audio "Audiophile" Firewire 24/96
interface. I could not get it to work (at least with the
PC I was using, which is in fact the exact same PC
that I'm using now with the Rosetta) at 24/96 without
intermittent clicks (clearly visible in a Wavelab-magnified
view of the waveform as missing samples).

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