In Reply to your post 9587044
Originally Posted by mosfetman
Comcast Audio dropouts are system-wide and affect all users.
Along with a number of other engineers, we have researched the Comcast Audio dropout issue in depth and we can assure you all of the following:
1. It makes no differnece whether you use a digital out into your receiver or if you use analog out.
2. The problem exists for both PVR and non-PVR versions of the Comcast STBs.
3. The problem is 30% worse (dropouts more frequent) on VOD
4. Time of Day is a factor, problem is worse during peak usage times.
5. We are mixed in our beleifs that the hole (dropout) is in the datastream, not created in the STB due to a buffer overflow or checksum error.
In my area the problem is too bad for me to live with. Techs have come out several times and said that nothing is wrong even thogh they witnessed the dropouts while they were in the house.
If anyone has any more info on this problem, I would appreciate the input.
I do have more data, I think.
I have a Motorola DCT6412 III on Mediacom, connected to a 58 inch Panasonic 1080p plasma and home theater system. HDMI from DCT to TV, optical digital to sound system. Also have a PlayStation III connected to TV via separate HDMI.
I get intermittent sound drop outs of 1 to 2 seconds sometimes more than once a minute, sometimes much
less often. The problem never occurs when playing games or movies through the PSIII. The problem never occurred with a previous provider using a simple HD cable box (no DVR). Switching the HDMI connections has no effect, confirming it's neither a bad cable nor bad port on the TV.
The is worst when watching a high def show live or with short delay (ie: paused and restarted, watching first part of show while later part still being received.)
I do not recall seeing it when watching a show purely from previously recorded content, but cannot rule this out since I have watched only two such shows in the month or so since getting the DVR.
If I experience a dropout then immediately "rewind" and play the segment again, the sound will be here! This indicates the signal was in fact received by the DVR, buffered to disk, but NOT sent to TV.
The problem is not with the service provider but the DVR. It seems to happen with several providers, but is not observed on any provider without a DVR.
The DVR is inadequate to record and play at the same time without occasional sound glitches in playing. It gives priority to recording, so this mostly works.
It will playback properly if not also recording. Watching live, it is always doing both because of the buffering to permit rewind.
Supporting observation: The problem seems
much worse on high def channels, which would make sense because there is more data.