I've been using audacity because it's simpler,
but it's oss based,
so there are complications. Can only get 2 channels working
perfectly so far.
You need Audacity version 1.1.3 or later for multichannel - I
recommend building wxGTK 2.4.0 from source rather than using the
Mandrake RPMS, which install a later version of wxGTK that the
Audacity developers do not recommend. Audacity 1.2.0-pre3 was the
latest release for Linux, I think.
It also helps multichannel performance if you set up a simple
.asoundrc file in your home directory, I've found. We've recorded
with up to 8 inputs on a Delta 1010 using Audacity.
Make sure to tell audacity that your project is
in 48k bps, since the card seems to play at that rate no matter
what audacity says, and you'll get screwed up wav/mp3 headers
otherwise.
I haven't experienced that with the Delta 1010, although with more
than 6 input channels the performance was better at 48KHz than
44.1KHz. 8 channels at 44.1KHz caused some sync problems between
tracks.
Cheers
Daniel