I have an HTPC connected to my RX-V673 over HDMI. The HTPC has Realtek onboard audio and Intel HD 4600 video (Gigabyte GA-H97M-D3H mobo).
If I just let the audio pass through the PC and have the receiver do the processing, which is obviously preferable, I run into a small issue from time to time. The audio will drop out for a fraction of a second, and the receiver screen will change from "Dolby Digital" to "Decoder Off" while this is happening. The weirdest part is it is not random; it happens at fixed places in certain media files only. For example it will happen at 19:45-19:46 on a certain media file, I can play that section again and it will happen at exactly the same place. It is typically places where the background noise in the movie drops to almost nothing, and the dialogue too gets very quiet, for example the actor is mumbling. I read about the silent stream bug
and excitedly thought that was my problem, but unfortunately I don't think it is, since the fix in that thread does not change anything, nor does the integrated setting in XBMC to "keep audio device alive."
The problem occurs in multiple media players that pass through pure Dolby Digital sound. In other media players that do their own processing, they pass PCM to the receiver and the problem does not exist! But obviously this is not a solution since I was to pass a pure signal to receiver.
Any ideas? Thanks!