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 (-: > _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user
