AVS Forum Addicted Member
Join Date: Jan 2001
Location: upstate NY
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The "silent stream bug" happens with audio being sent over HDMI. It normally happens at the start of an audio "transmission": the first second or so of sound is lost while the HDMI protocol is waiting for the HDMI/HDCP handshake to complete. As a result, many Windows notification sounds can't be heard at all, since they're less than a second long. Dropouts don't happen in the middle of a transmission unless something changes in the HDMI configuration (e.g. a TV is turned off).
At least that's what I experience. AVR Audio Guard prevents the symptoms I've described above. It also provides a hardware reset function which often can fix other HDMI related problems.
In my experience, most intermittent recurring dropouts are caused by deficient or broken HDMI cables. Make sure you're using cables that are Certified High Speed. You don't have to use expensive boutique cables like Monster, though. Monoprice is a popular supplier on AVS.
Marantz SR7009 avr + MM9000 amp --> Atmos 7.1.4
Fronts=NHT 2.9+AC2, FH+TM=DefTech PM1000, LCR+TM amped