Comments

Chienworks wrote on 12/19/2002, 2:45 PM
Yes.
pwppch wrote on 12/19/2002, 3:40 PM
Yes, but you will probably experiance problems if the cards are different.

1. Unless the cards are locked to a common clock source, you will record at different sample rates as no two cards will have the exact same crystals. This will lead to drift over time.

2. There is no mechanism to assure synchronous start of record between multiple different cards. Most hardware vendors implement their drivers such that all inputs and outputs are started synchronously. This is even possible using multiple cards from a single vendor where a single driver is used for both devices. When you use two different cards that have different drivers, then one card will start before the other. The difference can be minor or significant based on the driver. This will result in each card's recording to be offset by the delay in time that it takes for one device to start and the next device to start.

Peter
grig wrote on 12/20/2002, 4:57 AM
thanx for the infos, guys!!

will try this asap!!

peace,
Grig
momo wrote on 12/20/2002, 8:39 AM
I've not done this myself, but I know someone who sucessfully used four separate SB cards as inputs (mixed PCI and ISA, too!). For the valid reasons described above, this is not an ideal or very robust setup by any means, but remarkably, it does seem to work. Do yourself a favour, though, and get a good quality multi-input I/O. It's worth it in the end.