Dolby Digital/Plus problem

[JokerLuk 0]

Hi, I'm new here. First of all, I apologize for my English. I have a problem with decoding. Win11 server, PC to TV (x95j) with HDMI 2.1. TV is connected to the speakers (Logitech Z906) with Toslink, no HDMI input. Logitech has support Dolby Digital/DTS. I looked at the stream info while playing various movies. Movie with Dolby Digital Plus codec has stream audio DIRECT, with Dolby Digital SOFTWARE DECODE. According to Logitech support, shouldn't it be the exact opposite? Direct on Dolby Digital Plus it doesn't bother me, but I would like to Direct on Dolby Digital. Thanks for the help.

[Abobader 3464]

Hello JokerLuk,

** This is an auto reply **

Please wait for someone from staff support or our members to reply to you.

It's recommended to provide more info, as it explain in this thread:

Thank you.

Emby Team

[Luke 42080]

 

Hi there, let's look at an example. Please attach the information requested in how to report a media playback issue. Thanks!

 

[JokerLuk 0]

17 minutes ago, Luke said:

 

Hi there, let's look at an example. Please attach the information requested in how to report a media playback issue. Thanks!

 

App - Emby for Android TV, server PC Windows 11 - Google Chrome

I hope I have everything.

Thy

embyserver.txt

[Luke 42080]

Where exactly do you see software decode?

[JokerLuk 0]

10 minutes ago, Luke said:

Where exactly do you see software decode?

In the media player in the statistics. Info about stream - audio codec. I also tried movie with DTS codec -direct. Logitech Z906 has support for DTS and Dolby Digital.

[ebr 16185]

3 hours ago, JokerLuk said:

with Toslink, no HDMI

Hi.  DD+ isn't supported over that connection so we are decoding it internally.

[JokerLuk 0]

53 minutes ago, ebr said:

Hi.  DD+ isn't supported over that connection so we are decoding it internally.

Hi. I understand that, but as I wrote in the first post and it can be seen in the pictures: Movie with DD+ codec has stream audio DIRECT, with DD SOFTWARE DECODE. According to Logitech support and Toslink connection, shouldn't it be the exact opposite? DTS is direct, so DD should be direct too. DD is my problém, not DD+.

[ebr 16185]

Ah, okay.  

Can you please play that item for a few seconds and then follow the instructions to send a log from the app?

Please send the log right from the playback OSD.

Thanks.

[JokerLuk 0]

25 minutes ago, ebr said:

Ah, okay.  

Can you please play that item for a few seconds and then follow the instructions to send a log from the app?

Please send the log right from the playback OSD.

Thanks.

I just sent it. Thanks.

[JokerLuk 0]

The Movie being played was Nope DD codec - software decoded. User Lukáš

[ebr 16185]

Hi.  The example you sent is a 7.1 track which is not supported over optical.

Edit: Okay, that was at the start of playback.  Then you switched to the 5.1 DD track and it is direct playing.  Did you confirm that the stats still said it was decoding in software?  That may be a display issue due to the fact that you started with the THD track that was software decoding.

[JokerLuk 0]

13 minutes ago, ebr said:

Hi.  The example you sent is a 7.1 track which is not supported over optical.

How am I supposed to understand this picture? AC3 5.1 isn't native, but decoded from TrueHD? So the movie with only DD will be direct? Thanks for helping.

[ebr 16185]

Hi.  There are two audio tracks.  The True HD one is the default so it was automatically selected when you first played it.  Then you selected the plain DD track and it switched to that.  The DD track is direct playing to your receiver (you should see that indication on the receiver).

[JokerLuk 0]

10 minutes ago, ebr said:

Hi.  There are two audio tracks.  The True HD one is the default so it was automatically selected when you first played it.  Then you selected the plain DD track and it switched to that.  The DD track is direct playing to your receiver (you should see that indication on the receiver).

but in the info about stream - audio codec is DD (software decode, not direct), so the error is only in the wrong display?

[ebr 16185]

1 hour ago, JokerLuk said:

but in the info about stream - audio codec is DD (software decode, not direct), so the error is only in the wrong display?

Possibly but did you confirm that was still the case in the example you sent the log from?  Also, you may need to wait 10 seconds after the audio switch for the display to update.

I can tell you from your log that, once you switched tracks, it was bitstreaming the DD.

[JokerLuk 0]

22 minutes ago, ebr said:

Possibly but did you confirm that was still the case in the example you sent the log from?  Also, you may need to wait 10 seconds after the audio switch for the display to update.

I can tell you from your log that, once you switched tracks, it was bitstreaming the DD.

Yes, I set the AC3 codec, cca 30 seconds playing, info about stream was DD (software decode) and than I sent the log. Even if I set the AC3 codec before playing the movie, it still shows DD (software decode). Maybe I could try playing the movie with just the single DD codec, if that would tell us anything. Bittstreaming is the same as passthrough?

[ebr 16185]

51 minutes ago, JokerLuk said:

Bittstreaming is the same as passthrough?

Yes.  Does your outboard audio equipment allow you to see the signal it is receiving?

[JokerLuk 0]

5 hours ago, ebr said:

Yes.  Does your outboard audio equipment allow you to see the signal it is receiving?

There is only a decode light. I tried a movie with a single DD codec audio source, there was direct. The problem with the DD software decode is therefore only for a movie that also contains TrueHD, maybe another one codec. So either it's just showing up incorrectly, or there's a problem with multiple audio codecs.

[ebr 16185]

16 hours ago, JokerLuk said:

or there's a problem with multiple audio codecs

Hi.  There is no problem.  I confirmed from your log that the DD is being sent directly out.

[JokerLuk 0]

1 hour ago, ebr said:

Hi.  There is no problem.  I confirmed from your log that the DD is being sent directly out.

Ok, so it's a small bug where it just shows incorrectly in specific cases. Thanks for help.