Kodi Community Forum

I experience a nasty distortion sound when a Movie starts or when I skip within the file.

I use Teufel Cinebar 50, which is a VirtualSurround-Soundbarsystem.
The manufacturer told me to check that my Mediaplayer should be set to direct output (bitstream) and not PCM.

ATV2 is set to 16-Bit sound. I understood that XBMC provides AC3 passthrough.

• Does this mean that ATV2 "bitstreams"?
  

Note: the distortion doesn't happen with all video files:
most of the DTS-encoded movies work just fine, but mostly all of the DolbyDigital-encoded movies produce that short static noise.

I assume this it somehow related to the ATV2's relatively high default audio output level, which also seems to be the case with the Cinebar. This may accumulate to the problem.

Unfortunately I cannot adjust the input level of my VirtualSurround-Soundsystem.
While playing AC3/DTS-Files, the Volume Level in XBMC's context menu cannot be adjusted, either.

• Can the Output Level be reduced within XBMC? Or is there another way to fix this?
  

Hello, I have the same problem.
Please exist a fix?

There is an option to drop/duplicate data on either the video or audio stream to sychronise the two. Try changing to video.

beside thatthere is no output level on digital outputs ... its digital ... the amp decides how loud it gets...

g-off Wrote:There is an option to drop/duplicate data on either the video or audio stream to sychronise the two. Try changing to video.

Please, can you tell me where to find this option? I don't find it.

lumos Wrote:Please, can you tell me where to find this option? I don't find it.

It's under video settings a/v sync method Video Clock (Drop/Dupe audio)

Jester Wrote:It's under video settings a/v sync method Video Clock (Drop/Dupe audio)

Hello, I have tried but I always hear the audio scratch when playing ac3 videos.

I have an Asus At5iont-i Atom/ION2 setup with HDMI video/audio connected directly to my TV. I've modified the asound.conf file to get sound over HDMI. Sound and video work perfectly through the TV speakers at this point. Since I would rather listen to music, movies, etc through my stereo speakers rather than the tv speakers I have the audio out on the TV hooked up to my stereo via RCA cables (I would use the TV's optical audio out, but my stereo does not have an optical in connector, only RCA). The audio is then passing through the TV to my stereo. I have my PS3 hooked up this same way so that the video/audio goes to the TV via HDMI and the audio is then passed back out of the TV to my stereo via the same RCA cables. There are no problems with the sound from my PS3, however, when I attempt to play music or a movies through my OpenElec system I get horrible distortion. I can fix this by simply changing the input on the TV to any of the other inputs and then back to my OpenElec system. The sound plays great through the stereo until I select a different movie and I get the distortion again. Switching the TV inputs again solves the problem. I've switched HDMI cables and used the same HDMI TV input as the PS3 to test the HDMI connectors. It seems to do the same thing. I'm not sure if there is some setting in XBMC that needs to be changed.
I've tried setting the audio to Analog with the audio output device (HDMI) set to plughw:0,7. I thought this worked, however, about three minutes into the show I started getting distortion again. I've also tried disabling/enabling the AC3 and DTS capable receiver options with no luck.
Thanks for any suggestions.

And you totally got into the wrong forum. Go to the linux forum with your problem - this here is about iOS (iPhone, Atv2 and so on).

(2011-12-07, 00:51)g-off Wrote: [ -> ]There is an option to drop/duplicate data on either the video or audio stream to sychronise the two. Try changing to video.

THIS TOTALLY WORKED FOR MY iOS..!! MUCH THANKS..!!!!

Aj