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Windows => Television => Topic started by: konkeydong75 on May 22, 2023, 11:02:07 am

Title: Default Audio Stream on UK DVB-S/S2 channels
Post by: konkeydong75 on May 22, 2023, 11:02:07 am
I am in the UK and using DVB-S/S2. Whenever I scan for channels and add new ones, the default audio stream is always the audio description stream which narrates everything. Is there any way during scanning to set the preferred audio stream to be used, or to change channels en-masse after scanning?

This is probably more of an issue in the UK as our DVB channels move almost every day requiring very regular re-scans to keep on top of things.

I'm not comparing MC to Windows MCE here - I moved from that product long ago, but when scanning/re-scanning using that, the standard audio stream was always set and not the audio description so I am assuming there a way of picking this up that I might be able to work with?
Title: Re: Default Audio Stream on UK DVB-S/S2 channels
Post by: Yaobing on May 22, 2023, 01:17:00 pm
The default is always the first available stream.  So there is no way of specifying it during the scanning stage.  You can not mass-edit DVB channels either.  The way I recommend is to do a right-click, Audio Programs, choose correct audio, and then Right-click, Audio Programs, Use current audio as default, while playing a channel.  Alternatively you need to open Manage Channels and edit each channel by setting the correct audio PID for each. 

That said, I will take a look at the scanning code and see if we get any info about the type of audio we are getting in each stream.  If we can, we might try avoiding choosing the "audio description for visually impaired" type.
Title: Re: Default Audio Stream on UK DVB-S/S2 channels
Post by: konkeydong75 on May 22, 2023, 01:26:03 pm
Hi Yaobing,

Thanks for replying. I figured as much.

I currently edit the channels by right clicking on them.

It's probably not as much of an issue in other countries - I don't know why we move channels around so much over here!

If you are able to find anything, please let me know as I'd be more than happy to do some testing for you.
Title: Re: Default Audio Stream on UK DVB-S/S2 channels
Post by: Yaobing on June 02, 2023, 06:54:24 pm
MC31 build 17 is available on MC31 board.  I made an attempt to address the issue.  Please try it and let me know how it works.
Title: Re: Default Audio Stream on UK DVB-S/S2 channels
Post by: konkeydong75 on June 09, 2023, 11:00:42 am
Hi Yaobing,

Thanks for the update and once again, I appreciate your work.

I have updated and it does now appear to be correctly labeling the additional audio stream with "audio description for the visually impaired".

Now that that label is present, is there anything that I can expose through a smartlist or other setting to not select that audio stream as the default, or is it still a matter of manually changing each channel?
Title: Re: Default Audio Stream on UK DVB-S/S2 channels
Post by: Yaobing on June 13, 2023, 04:59:26 pm
You need to rescan channels.  First try rescanning without deleting the existing channels.  If that does not work, you need to delete existing one first and rescan. 

Each channel has a single audio PID saved with it (or not at all).  If there is a PID saved in the channel, we have to honor it, because we have no way of knowing whether it is user's decision to choose that particular PID. 
Title: Re: Default Audio Stream on UK DVB-S/S2 channels
Post by: konkeydong75 on June 16, 2023, 11:21:34 am
Hi Yaobing,

That makes sense.

I have deleted a couple of channels that I know for certain always come up with the visually impaired audio stream.

One of the them is fine and the other stream was selected. For the second channel, neither audio stream was labelled with "audio description for the visually impaired".

Is there any more information I can provide with you on this one?
Title: Re: Default Audio Stream on UK DVB-S/S2 channels
Post by: Yaobing on June 16, 2023, 09:20:04 pm
Try capturing a log of scanning for channels and then playing this particular channel.
Title: Re: Default Audio Stream on UK DVB-S/S2 channels
Post by: konkeydong75 on June 17, 2023, 03:49:01 am
How do I capture a log of a channel scan?

Is this it?

https://yabb.jriver.com/interact/index.php/topic,52448.0.html
Title: Re: Default Audio Stream on UK DVB-S/S2 channels
Post by: Yaobing on June 17, 2023, 10:46:52 am
How do I capture a log of a channel scan?

Is this it?

https://yabb.jriver.com/interact/index.php/topic,52448.0.html

Yes, follow that instruction.  You do not need to do item 5.  Just send the log files.
Title: Re: Default Audio Stream on UK DVB-S/S2 channels
Post by: konkeydong75 on June 19, 2023, 04:21:58 am
Hi Yaobing,

Logs generated, how should I send them over to you?
Title: Re: Default Audio Stream on UK DVB-S/S2 channels
Post by: JimH on June 19, 2023, 07:22:21 am
Hi Yaobing,

Logs generated, how should I send them over to you?
Post on dropbox or similar and send a link.  If they're small enough send to yaboing at jriver.
Title: Re: Default Audio Stream on UK DVB-S/S2 channels
Post by: konkeydong75 on June 19, 2023, 08:00:01 am
Many thanks Jim,

Have emailed to Yaobing.
Title: Re: Default Audio Stream on UK DVB-S/S2 channels
Post by: Yaobing on June 21, 2023, 08:03:16 am
For an unknown reason, maybe the TV station did not label the audio stream with PID 662 as a special audio stream.  Its audio type code is still 0 (normal audio), and I would expect it to be 3.  On the other hand, its ISO639 language code is "NAR".  Anyone knows what this means?  Maybe "NAR" indicates that it is a special audio stream?  Note that ISO's code "nar" means Iguta language, but when it is all in capital letters?
Title: Re: Default Audio Stream on UK DVB-S/S2 channels
Post by: Yaobing on June 21, 2023, 08:09:38 am
I think "NAR" means "narrated".  So I guess I should avoid using an audio stream with "NAR" for default audio.
Title: Re: Default Audio Stream on UK DVB-S/S2 channels
Post by: konkeydong75 on June 21, 2023, 08:43:13 am
Hi Yaobing,

Yes that is correct, some use NAR for a narrative audio stream.

Many thanks for the update.