I have one of the older Fat PS3's and take good care of it. I never dropped it, and it is always in a well ventilated TV stand. Lately for some reason, the audio from the PS3 will cut out or go so low you can barely hear. It will generally only do this for a few seconds and then come back on. I did a lot of testing to see if it was indeed the PS3 and not the TV or my soundbar. I even tried different cables. It seems to be the PS3 itself doing this.
It happens with HDMI and component. I don't really notice the problem as much when using the composite L +R audio. I think at the most the volume drops down a bit. I've also double checked the output format of the audio settings.
I experience the audio problems when watching Vudu streaming movies, playing games, listening to music on HDD, and possibly while watching a DVD. Interesting enough when using my Wireless Headset I have absolutely no problems.
Anyone else have similar problems? Either the hardware is going bad for some unknown reason, or it is a software/firmware issue.