27 May
2003
27 May
'03
6:16 p.m.
Patrick Shirkey wrote:
Mark Knecht wrote:
that should be divided by three to get bytes as there are 8 bits in
every byte the quattro uses 24 with 3 periods (not packed in four like
other cards).
24 * 3 bytes * 48000 = 3072000 bytes
=> 3072 Kb
=> 3.072 Mb/S
Doh,
96000 * 3 * 24 = what Tobiah said. Better to read his explanation than
mine as mine was still a bit confused.
--
Patrick Shirkey - Boost Hardware Ltd.
Http://www.boosthardware.com
Http://www.djcj.org - The Linux Audio Users guide
========================================
Being on stage with the band in front of crowds shouting, "Get off! No!
We want normal music!", I think that was more like acting than anything
I've ever done.
Goldie, 8 Nov, 2002
The Scotsman
Another
thing about the quattro is that even the windows drivers will
not allow you to record and playback on all 4 channels at one time.
You can use
4 in, 2 out 48khz 24 bit
2 in, 4 out
2 in, 2 out 94 khz 24 bit
I think I am running up against this with my latest attempts. It may be
that the quattro cannot do all 8 channels because of a hardware switch
maybe for power consumption or something. They do run awfully hot and I
can imagine that it would be possible to melt something if their is too
much power running through them.
USB 1.0/1.1 is built on a 12Mb/Sec physical layer.
96000 * 24-bits * 4-channels = 9.216Mb/S if I did the calculations
correctly.