3 Jul
2008
3 Jul
'08
4:28 a.m.
Hi
I'm no techie but isn't the calculation regarding how fast your harddisk
must be quite simple, if we assume working in 44100KHz ?
A normal CD delivers 150Kb pr. second and its two tracks, so storing
multichannelrecordings in 44100 must be something like 75Kb per second X
times as X is the number of tracks.
I have no doubts that my Lenove T61P with sata disk can store more than
the 75Kb * 18 my RME Multiface offer, else the thing is broken.
/Sv-e
ons, 02 07 2008 kl. 21:20 +0200, skrev David Forsyth:
Date: Wed, 02 Jul 2008 13:38:11 +0200 (CEST)
From: "Kjetil S. Matheussen"
David Forsyth:
>
> At this point, I'd be happy to do an 8 track recording. For
> important live recordings I would not use a laptop, but instead a
> decent desktop with a RAID 0 array of at least 3 SATA2 disks for
> the audio files, with the system on another disk.
>
I think that is complete overkill. I just tried
recorded 128 channels
of 32bit/44100hz at once, without problem. And my machine is 5 years
old 2Gz barebone, using only a single PATA ide disk.
This was using jack_capture, and only recording
silence (ie.
non-connected jack ports). Maybe the silence makes a difference.(?)
I think you're missing all the interrupts that would happen if your
audio hardware was sampling and sending data to the jack ports.
and then the conflict between the PCI transfers of that data and the
DMA->PCI transfers to disk...
I had trouble with my 8 channel setup until I sorted out the SATA
settings. I still say that for a large important (one chance) recording
I'd use more hardware than a laptop can supply, even if I have to hire
it or assemble it specially for the show.
256 channels did not work very well though.
heh (-: