I forgot to spec a PCI port on my latest motherboard, so I have been 
without my Audiophile 24/96 for months.  I will be composing some music 
for my new software company in the next while, so I finally had to go 
hunt down a solution to this problem.

I came up with the Focusrite Scarlett 2i2 after spending a few hours 
researching my options.  It was reported working as far back as 2012, 
and nothing since then gave me pause.  I like their attitude toward 
Linux, which seems to be, in a nutshell, "We don't support Linux, but if 
anybody is writing a driver for Linux, here are some technical details 
for you."

http://us.focusrite.com/usb-audio-interfaces/scarlett-2i2

I haven't done any real work with the interface yet, but my first 
impressions are really positive.  I plugged it in, and it worked.

Specifically, here's how I rigged it up:

onboard audio -> Behringer Eurorack UB1002 mixer -> 2i2 -> external amp

I left pulseaudio running on the ac97 on my motherboard and configured 
JACK to use "Scarlett 2i2 USB."

I recorded a mixture of some Youtube video (pulseaudio -> ac97 -> 
Behringer mixer -> 2i2) with one of the Rosegarden sample files that 
uses DSSI synth plugins (rosegarden -> jackd -> 2i2) and everything 
worked.  I have fiddling to do to optimize the setup and get the levels 
right and so forth, but this was highly encouraging.

The audio quality is crisp, clean, and noise free.  I would probably 
want one of the variants with more inputs if I didn't have the mixer, 
and some of those variants were NOT reported as working.  The 2i2 was, 
and it does.

USB audio interfaces appear to be a very evil thing in modern times. 
They used to work well in the USB 1.0 days, but most current offerings 
are USB 2.0, and most of those are not class compliant.  I poked around 
for a few hours researching this that and the other before settling on 
the choice I did make.  It appears to be one of a very limited number of 
available options, and this one is now tested and approved by yours truly.

(Next up, a review of the Korg Triton Taktile 49.  My old controller 
keyboard is so obscure googling it just shows all the places I've talked 
about it over the years.  It's built like a tank, and should be 
repairable, but I just want something new after 20 years.  It has a MIDI 
OUT, but input comes from USB only.  I have no clue if I will be able to 
access the built-in sounds from Linux, and will report back once the 
keyboard arrives.)
-- 
D. Michael McIntyre

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