2021-09-13, 13:04
Pretty sure I got 2ch PCM out of Kodi before but it could have been with PCM forced on FireTV's end, have to do more testing.
I did also test the 96kHz thing on fixed setup and I now remembered what was the issue with this one. At least our local TV broadcasting just drops audio every few seconds if I force Kodi to 96kHz. With 48kHz stereo PCM and DD+ are fine. This could be limited to specific stereo sources though, I don't really have extensive library of stereo content to test this with, but it definitely is an issue while I'm using Kodi's TV through MediaPortal TV Server.
Fixed + 96kHz setting (could be that 192kHz works too, didn't retest yet) did pass LPCM through on movies properly so I think there is something that could be done with all this, basically if one forced "Best Match" setting on Kodi to use higher sampling rate than 48kHz on 5.1+ audio tracks, it would probably work fine on all occasions on my end.
As a side note juggling between these settings often results to FireTV going into state where it either:
- doesn't output any sound
- slowly starts to stutter the stream until it dies
- with above scenario, this often results on getting hard reset on whole firetv if one keeps playing back video
after full hard reset, things work again until you swap the setting enough. This isn't really an issue for me, it just makes testing different settings bit more tedious as it's slower to see the real impact (would need to do full system reset to really see if the setting works as intended).
I did also test the 96kHz thing on fixed setup and I now remembered what was the issue with this one. At least our local TV broadcasting just drops audio every few seconds if I force Kodi to 96kHz. With 48kHz stereo PCM and DD+ are fine. This could be limited to specific stereo sources though, I don't really have extensive library of stereo content to test this with, but it definitely is an issue while I'm using Kodi's TV through MediaPortal TV Server.
Fixed + 96kHz setting (could be that 192kHz works too, didn't retest yet) did pass LPCM through on movies properly so I think there is something that could be done with all this, basically if one forced "Best Match" setting on Kodi to use higher sampling rate than 48kHz on 5.1+ audio tracks, it would probably work fine on all occasions on my end.
As a side note juggling between these settings often results to FireTV going into state where it either:
- doesn't output any sound
- slowly starts to stutter the stream until it dies
- with above scenario, this often results on getting hard reset on whole firetv if one keeps playing back video
after full hard reset, things work again until you swap the setting enough. This isn't really an issue for me, it just makes testing different settings bit more tedious as it's slower to see the real impact (would need to do full system reset to really see if the setting works as intended).
