Thesycon DSD workaround ?

[MikeyFresh]

In the latest moOde 7.6.0 update we see

Updated WIP release notes.

- Bump to MPD 0.23.4 with new DSD option "thesycon_dsd_workaround"

One might reasonably ask oneself: Self, what the heck is this workaround and why do I need it?

Here's some lines I found in the MPD source code repo

Code:

  * - **thesycon_dsd_workaround yes|no**
    - If enabled, enables a workaround for a bug in Thesycon USB
      audio receivers.  On these devices, playing DSD512 or PCM
      causes all subsequent attempts to play other DSD rates to fail,
      which can be fixed by briefly playing PCM at 44.1 kHz.

which is part of commit #3413b1ae, Nov 4, 2021. The commit doesn't reference any issue and I couldn't find one quickly searching on 'Thesycon' or 'DSD'.

Pardon my ignorance but I thought Thesycon specialized in driver toolkits for Windows systems. Does anyone know of a "Thesycon USB audio receiver" which displays the symptom described?

Regards,
Kent

That's always been my understanding as well, not only have I not had any problems with DSD and Moode using various different DACs, but I've only ever heard of Thesycon in the context of Windows drivers, and never as any sort of "USB audio receiver" which sounds like hardware of some sort but perhaps that's just a poor wording of the description.