Hi ygg owners.
A lot of e-ink was spent about that special burrito DSP filter and I was wondering, maybe there was a way to truly test it. According to schiit that is "a digital filter/sample rate converter designed to convert all audio to 352.8 or 396KHz sample rates".
An almost perfect test would be to take a 16/44 track, upsample to 24/352 on a PC (e.g. foobar+sox) and that would (completely?) bypass iggy's DSP filter. A comparison between that playback chain and the same 16/44 track fed directly to the iggy would be a very good way to asses just how much a difference that buritto DSP makes.
Unfortunately iggy only takes 24/192 input. But even so, maybe someone can do the following comparison:
16/44 foobar-upsampled to 24/176 and into iggy
vs.
16/44 directly from foobar into iggy
It should be quite easy to a/b, you just need to enable/disable sox upsampling in foobar. Bonus points if you add some objective blindness to the test (e.g. have a friend enable/disable sox for you and see if that's audible). I'd say that would still be a reasonably good test to tell whether the iggy DSP is indeed mega-burrito, or just good burrito.
P.S.
I guess that someone from Schiit or with good EE skills can still perform the 'true' test with 24/352. Whaddayasay mr
baldr, would that be a relevant and interesting test for a headfi meet? And is schiit *that* open and confident about burittos?