I have the following system running: MacMini M1, 8 GB RAM, ROON + HQ-Player, Intel Celeron N4020 Windows Bridge (NAA-software and T+A firmware USB-driver installed), T+A MP3100 HV (3 stage True One Bit converter DSD, Amanero USB board) via USB.
My HQP-setting is the following:
Device: Desktop-Celeron: T+A USB ASIO 1.03
Ch. Offset: 0
SDM Pack: none
Buffer time: 100 ms
DAC bits: 32
48k DSD: checked
Default output mode: SDM (DSD)
Poly-sinc-Gauss-long (1x oversampling)
Poly-sinc-Gauss-hires-lp (Nx oversampling)
Bit rate: 44.1k x 256
Multicore DSP: grey
Adaptive output rate: grey
Upsampling to DSD 44.1k x 256 runs stable (with rare artefacts depending on the background activity of the Mac) with amazing SQ. Nevertheless I would like to try 44.1k x 512 (my DAC supports this). Unfortunately in the same HQP setting as depicted above this leads to serious distortions and dropouts (I suppose because of the limited performance of the MacMini?). What do you recommend to change in the HQP setting to get a stable 44.1k x 512 upsampling without loosing too much quality within the signal path? Thank you very much in advance for your help.