[mythtv-users] Audio missing

[PJR]

On 04/07/12 11:28, Alan Chandler wrote:
> On 04/07/12 09:12, Nick Rout wrote:
>> On Wed, Jul 4, 2012 at 8:07 PM, Alan Chandler
>> <alan at chandlerfamily.org.uk>  wrote:
>>> On 04/07/12 08:33, Jean-Yves Avenard wrote:
>>>> On 4 July 2012 17:06, Alan Chandler<alan at chandlerfamily.org.uk>  
>>>> wrote:
>>>>> This should say "The recordings made DO not contain audio"
>>>> oh .. my bad.
>>>>
>>>> Then you need to provide mode information such as the recording type
>>>> (DVB-T you mentioned ?)
>>>> _______________________________________________
>>> Yes - DVB-T - I have a Hautpage NovaT 500 and a Pinnacle pctv
>>> nanostick t2
>>> 290e
>>>
>>> Not sure what it was recorded with yet - I thought the Nova T, but in
>>> testing other stuff this morning I wonder if I made a mistake.
>>>
>>> I'm going to leave it until this evening to explore further as I
>>> have a day
>>> to go and live right now.
>> It would be odd for a digital card not to record audio. Can you run
>> mediainfo over one of  the recorded files and post the results?
>> _______________________________________________
>>
>
> Strange - yesterday it wasn't working.  Today I get the Audio fine.
>
>
After some investigation I've found that the recordings that don't
playback sound are the ones that say they are multi-channel sound (ITV1
HD), stereo is ok. No amount of changing  the audio setup makes any
difference. I've also found that playing live TV, BBC HD, which has
multi-channel sound, has sound both and when played back from the
recording. I'll record another ITV1 HD movie and see what the result is.
Given that this problem so far has shown up on commercial TV, I wonder
if it's something to do with advert detection?  I've also tried playing
back the recordings directly via VLC and they just freeze around the
point the sound goes.  Problems is I don't think advert detection nor
transcoding jobs are enabled. Mystified!