Topic: hdsp/cardbus/sonnet/startech/thunderbolt, win10: intriguing problem
Well, "intriguing", "confounding", "frustrating"... take your pick. In any case, I have a multiface with cardbus hdsp card. I am using the now-seems-standard chain to connect that to a Dell Precision 7740 (really nice music production platform!) thunderbolt 3 connector:
multiface hdsp cardbus -->
cardbus-to-expresscard/34 adapter -->
expresscard-to-TB2 (Sonnettech Echo Pro) -->
TB2-to-TB3 (Startech) -->
PC thunderbolt 3 (usb-C connector)
Almost always, it sees the multiface upon boot up. Cubase can see all the I/O listed. Sound goes through the device. Great.
But... I do hear glitches upon playback (at least with buffers up to 256, possible any buffer setting, not sure).
Here's the interesting thing that I hope sparks an idea in someone with more experience with this. If I enable a second stereo pair of outputs in Cubase, even if I do not use that pair, the audio glitching increases.
And if then enable a *third* stereo pair of outputs in Cubase, again, even if I don't send any audio to that output pair, the audio completely falls apart in a sea of glitching so bad it almost sounds like ring modulation.
Does this ring any bells? Is this a thunderbolt subsystem issue? It doesn't seem like I am overpowering the CPUs (8 cores, turbo to 5ghz). At least, the Resource Monitor graphs don't appear to be maxing out.
Is it because there is something fundamentally fatal with the older cardbus hdsp?
I have a ticket open with Dell, but there's only so much they can do without being able to duplicate the whole interface and adapter chain.