2015-10-09, 16:32
Hello folks,
Again I have spent well over a month researching Clipping and or Distorted HDMI audio out from XBMC/Kodi. This seems to have been an issue for some time without any resolve and has been around since mid to late XBMC years.
Has anyone come up with a fix for the issue with Kodi using PulseAudio or ALSA?
Please take note: This is not an issue with any other media player or web browser based media.
The HDMI audio is going directly to my Vizio TV. I have bypassed my Onkyo due to bad capacitors on the HDMI switching board. Something I am repairing myself and has nothing to do with this audio issue.
Apparently it has something to do with the sampling or timing since the distorted clicking sound has very distinctive pattern which can be heard mostly during music, long musical note or tone. The audio also distorts on peaks. I have tried setting levels in Alsa via the terminal and this does not have any effect at all with Kodi. The only changes I can make is via PulseAudio Volume Control. This only adjusts the levels but does not make any difference with the clicking or distortion, it is still there, but just at lower audio levels.
I thought maybe it could be that the output of Kodi was over driving Pulse, in turn over driving the HDMI, but that does not seem to be the issue.
I have also noticed that the voice seems to go out of phase as if to remove the voice and leave the music and other non voice items in the video. This issue is not as annoying as the clipping and distortion.
I have my system updated just about daily and Kodi is set to Nightly.
Here is my current kernel info. LinuKodix HTPC 3.16.0-50-generic #67~14.04.1-Ubuntu SMP Fri Oct 2 22:07:51 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
lspci | grep udio
00:07.0 Audio device: NVIDIA Corporation MCP67 High Definition Audio (rev a1)
01:09.0 Multimedia video controller: Conexant Systems, Inc. CX23418 Single-Chip MPEG-2 Encoder with Integrated Analog Video/Broadcast Audio Decoder
I also tried this change in etc/pulse/default.pa
load-module module-udev-detect tsched=0
This did not make any difference for my situation and actually it makes the distorted clicking sound worse.
Thanks for your time reading this and any help would be greatly appreciated not only by me but others with this ongoing issue.
Again I have spent well over a month researching Clipping and or Distorted HDMI audio out from XBMC/Kodi. This seems to have been an issue for some time without any resolve and has been around since mid to late XBMC years.
Has anyone come up with a fix for the issue with Kodi using PulseAudio or ALSA?
Please take note: This is not an issue with any other media player or web browser based media.
The HDMI audio is going directly to my Vizio TV. I have bypassed my Onkyo due to bad capacitors on the HDMI switching board. Something I am repairing myself and has nothing to do with this audio issue.
Apparently it has something to do with the sampling or timing since the distorted clicking sound has very distinctive pattern which can be heard mostly during music, long musical note or tone. The audio also distorts on peaks. I have tried setting levels in Alsa via the terminal and this does not have any effect at all with Kodi. The only changes I can make is via PulseAudio Volume Control. This only adjusts the levels but does not make any difference with the clicking or distortion, it is still there, but just at lower audio levels.
I thought maybe it could be that the output of Kodi was over driving Pulse, in turn over driving the HDMI, but that does not seem to be the issue.
I have also noticed that the voice seems to go out of phase as if to remove the voice and leave the music and other non voice items in the video. This issue is not as annoying as the clipping and distortion.
I have my system updated just about daily and Kodi is set to Nightly.
Here is my current kernel info. LinuKodix HTPC 3.16.0-50-generic #67~14.04.1-Ubuntu SMP Fri Oct 2 22:07:51 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
lspci | grep udio
00:07.0 Audio device: NVIDIA Corporation MCP67 High Definition Audio (rev a1)
01:09.0 Multimedia video controller: Conexant Systems, Inc. CX23418 Single-Chip MPEG-2 Encoder with Integrated Analog Video/Broadcast Audio Decoder
I also tried this change in etc/pulse/default.pa
load-module module-udev-detect tsched=0
This did not make any difference for my situation and actually it makes the distorted clicking sound worse.
Thanks for your time reading this and any help would be greatly appreciated not only by me but others with this ongoing issue.