No audio with HE-AAC in one channel (others work)

[Barsk]

I am having problems with one channel here in Sweden (Axess TV) that does not give me any audio. It is MPEG-4 video, HE-AAC audio, SD resolution.

The thing is that HE-AAC works in all other channels with HE-AAC, just not in this one.
I am beginning to think it is demuxed wrongly, but that is just a theory.

I have tried Monogram, Arcsoft and Divx AAC decoders and no difference.

Sub, if you PM me I will provide you with an FTP login where you can get a small sample (just 7 MB).

[sub]

Ok, PM me the login details.

[Barsk]

You have the login details in a PM now.

[sub]

There is no audio packets in that file, which is why you hear nothing.

[Barsk]

Ok, then the question is why? In both live and recorded mode NPVR shows the audio stream to be HE-AAC, and I am quite sure there is nothing wrong with the transmission. This problem has been from start. I even tried to delete the channel and then scan for it again if there was some changes to the transmission, but that made no difference.

All other HE-AAC channels with mpeg-4 works...

[sub]

You could try creating a c:\temp directory, set HKEY_LOCAL_MACHINE\Software\npvr\LogTSWriter=1 (DWORD), then reproduce the problem then zip and attach the c:\temp\writer-x.txt file

[Barsk]

Now, this is really strange. I have put in hours to try fix the audio problem to no avail, and today when I should apply the registry setting etc above - it suddenly worked! I did do a reboot. Maybe that somehow fixed something? Maybe I had had not restarted the NPVR service after I rescanned the Axess TV channel? Anyway. It works now and I have no idea how to reproduce the original error. So, I guess we have to leave it as is...

Thanks for your help though Sub!

If you have the time I would appreciate if you could have a look at my other thread about PreferAC3=1. I get serious sync issues with that setting, and I am not alone....