Originally Posted by eazyriderr
Hi , just wanted some feedback regarding my sound issue. Several times now when attempting to watch my Blu Ray ISO movies from my external hard drive I will encounter a issue with sound suddenly becoming distorted (high pitched distorted ) eventually after a few minutes it will seem to have returned but only the soundtrack eg. music,sound effects will be audible no dialogue.
This behavior is random and I have tried everything, new WD external HDdrives, new highspeed HDMI cables, different HDMI inputs on my receiver. However I do not seem to have this issue when I watch actual BluRay disks.? This is confusing me because I thought that my Onkyo receiver was malfunctioning but then why has this never happened while watching off a actual disk? Could the culprit be the WD external hard drive? This happens when I'm playing them off my OPPO and also when watching from my POPCORN HOUR A200.
Popcorn hour A200
2x "new" WD External Harddrives.
I would appreciate any advice. Thanks.
Most likely culprits are either the tracks themselves or the OPPO. Is it possible that your video ripping process or the download source that you are using has some glitches? Is it possible that the video is being upsampled to a higher resolution than it is on the actual commercial Blu Ray disc?
Are the points in the media where things break up always the same or do they change significantly every time you play a given piece of media?
Everything else that you've mentioned seems unlikely to make any difference. Not the HDMI cables, not the HDMI inputs, and really not the AVR itself.
IME, if a HDMI link works reliably, stably and well at all for several minutes at a given video resolution, it generally continues to do so unless something else changes. 1-2 meter HDMI cables are pretty much the same for this kind of thing unless there are problems with the connection being intermittent due to a broken cable or connector.
The HDMI inputs on an AVR are generally as alike as peas in a pod unless they are damaged in which case they generally don't work at all. There seems to be some kind of a bottleneck in your situation. Playing a USB storage device as opposed to playing actual Blu Ray media use several very different functions of your OPPO. So it makes some sense that Blu Ray discs can play well while there are problems playing media off of a storage device.
What happens if you try to play the media off of the storage device with a PC?
I'd defrag the storage device just to make sure.
I've recently been working with CAT 5E extenders for HDMI which can be sensitive to cable lengths near their length limits, and their reliability drops as I push video resolution beyond a certain point. So, I've been able to take HDMI links to the edge and watch how they behave. It's digital, so there is only a narrow range of parameters where they are flakey. There is a huge safe area before things start breaking, and once it starts breaking trying to press things even a little further generally breaks things totally.