My setup consists of: Ugoos AM6B+ with latest CPM A14 release → Sony A95L TV → Sony Bravia Quad speakerset.
I’m having audio dropouts in the 1-2 second range on lossless atmos or dts:x tracks only. And only via eARC bitstream passthrough. So zero dropouts on direct hookup to the audioset. The dropouts seem to be deterministic in relation to the scenes in which it occurs, but not in frequency. I.e. it happens consistently in scenes in which a sudden spike of audio objects is noticeable (lots of sounds going around). But it only occurs about 20% of the time.
For sure the Sony A95L is partially to blame. The latest v112.631.085.1 firmware made a significant decrease in the frequency of it occurring, going from about 90% of the time to 20%.
However, I have a feeling the AM6B+ might also be partially to blame. On dropouts this is mentioned in the logs:
ActiveAE::SyncStream - average error 115.899031 above threshold of 100.000000
ActiveAE::SyncStream - delay frames:5563 error 96ms
ActiveAE::SyncStream - delay frames:4603 error 76ms
ActiveAE::SyncStream - delay frames:3643 error 56ms
I made a couple of videos showcasing the issue here