[Kyle Splittgerber]

Hi Dominic,

We're still looking into what the root cause could be for this issue. We tested a number of different audio devices before releasing the feature, but didn't see this problem. In the meantime, can you use ADAT format instead of S/PDIF? I see the ADI-2 Pro supports it:

"The optical SPDIF input is fully compatible with all ADAT optical outputs. The internal receiver detects the format and automatically switches between SPDIF and ADAT mode. RME's unsur- passed Bitclock PLL prevents clicks and drop outs even in extreme varipitch operation, and guarantees a fast and low jitter lock to the digital input signal. A usual TOSLINK cable is suffi- cient for connection.

To not break the concept and to simplify operation, only channels 1/2 of the ADAT input signal are taken. Even in multi-channel USB mode ADAT uses only the SPDIF input channels 5/6 – not more. Still the information of all 8 ADAT channels is used in two cases: in SMUX (96 kHz) and SMUX4 (192 kHz) operation, where channels 1/2 are built up from the information spread about 4 and 8 channels. And in Digital Through mode, where only channels 1/2 can be moni- tored, but all 8 channels are passed through to the output if set to ADAT."