As long as the PCM is being decoded correctly by Kodi there should be no loss in audio quality to your receiver. The only real difference is where the decode is taking place, Kodi or your receiver. I'd recommend having kodi decode the audio and send out multichannel PCM. If the encoded formats of your video file is just the one that Kodi can not decode, you have two choice: one, transcode the video/container to the Kodi enable decode one, second, give up. To solve no sound with Kodi issues, you can go to Settings/System/Audio output settings as a reference method. In other word, when enable Dolby digital (AC3) capable Receiver, Kodi will automatically attempt to direct play AC3 audio if the audio in PCM format, but if the video/container are not compatible then you will get no audio at all. All manipulation of audio in the digital domain is always done on audio in the PCM format, therefore functions in Kodi such as volume control can only be done on PCM data, therefore if audio is in one of the Encoded Formats Kodi must decode the audio to PCM in order to manipulate it for volume control.
#Dolby digital dts decoder code
When analog audio is converted into the digital domain the near universal format used is Pulse Code Modulation (PCM). To understand how Kodi processes audio you must first have a basic understanding of how audio in the digital domain works. So, TLDR version, do I lose anything at all by moving to multichannel PCM with decode happening in Kodi instead of on my receiver? Will this fix my sync issue by allowing me to enable "sync playback to display"?Īlso, is it better to have Kodi send the receiver 5.1 multichannel PCM to match my 5.1 speakers, or is it better to have Kodi send 7.1 multichannel PCM to my 7.1 receiver, and let my receiver use Neural X or some other tech to mix it down to my 5.1 speakers?īulletDust, I'd greatly appreciate your input on this subject, as you seem very knowledgeable, and we just talked about this in another thread! If I have a 7.1 receiver (running with 5.1 speakers, two speakers are unpopulated for future upgrades) do I lose anything by going with this approach? I know it will probably increase CPU load on my Kodi box as it now has to do all the decoding, but it is a Haswell i5-4570T, so I think it can handle it no problem. What if, instead of using passthrough, I do all audio decoding in Kodi and present my receiver with multichannel PCM in 5.1? The question is, how can I work around this for now? It seems like a mistake to disable passthrough if "sync playback to display" is enabled for this reason. Is the fact that "Player -> Sync Playback to Display" is forced to be off in order to enable passthrough preventing the AC3 passthrough in the passthrough menu from working?
It would seem as if AC3 transcoding would solve this sync problem.
#Dolby digital dts decoder how to
(Yes, this is Krypton, I just switched the skin back to Confluence, as I didn't want to have to teach everyone in the house how to use the TV again, they already complain it is too complicated) The reason why is listed in the config description: It required me to disable "Player -> Sync Playback to Display" for passthrough to work. (recorded and local files seem to work fine though)Īfter I upgraded to Krypton, passthrough stopped working all together. The Kodi team - however - just moved their latest version (Krypton, v17) to stable and it has kind of messed with my surround receiver.įirst, I had no audio passthrough to my receiver at all, and then I found that I had to disable "sync playback to display" in order to get passthrough to work, but now I randomly have audio/video sync problems when watching live TV. So since getting my Denon AVR-x1300w receiver, I've been using Dolby/DTS passthrough mode, and it has been working well.
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