No sound with .ts file (Windows 7)

[McBainUK]

I get no sound when playing a UK Freeivew recording in GB-PVR on Windows 7. I do get sound using WMP on the same machine.

The decoders you need depend on what is in that specific .ts file. For DVB-T in the UK, you'd need an MPEG2 video decoder, and a MPEG1 Layer 2 audio decoder, exactly same as it would if you were recording to a .mpg or .dvr-ms file.

So I don't think it's the AAC codec problem discussed elsewhere.

Any ideas?

[dennit]

I get no sound when playing a UK Freeivew recording in GB-PVR on Windows 7. I do get sound using WMP on the same machine.
So I don't think it's the AAC codec problem discussed elsewhere.

Any ideas?

My idea is that WMP is using one set of codecs, GBPVR is using another. You know the file isn't damaged, so it's just a matter of getting GBPVR to use the right codecs.

There are various ways to approach this, and since I don't use W7, I'm not sure what's best, but my preference is to use GraphEdit to find out what GBPVR is using, then modify the graph to make it work.

[sub]

I get no sound when playing a UK Freeivew recording in GB-PVR on Windows 7. I do get sound using WMP on the same machine.


So I don't think it's the AAC codec problem discussed elsewhere.

Any ideas?

In the UK Freeview DVB-T system it uses MPEG1 Layer 2 audio, so you probably just need to change the "audio decoder" setting on the playback tab.

[McBainUK]

but my preference is to use GraphEdit to find out what GBPVR is using, then modify the graph to make it work.

GraphEdit crashes when opening a graph and the "connect to graph" list is empty :confused:

In the UK Freeview DVB-T system it uses MPEG1 Layer 2 audio, so you probably just need to change the "audio decoder" setting on the playback tab.

Tried this before posting but still no sound. Looking at the filters list in the PVRX2.exe-native.log file it looks like the audio track is being routed wrong and it's trying to "play" the subtitle track.

System default (Microsoft DTV-DVD Decoders for both audio and video)
2009-07-16 08:36:41.886 VERBOSE Graph contains the following filters:
2009-07-16 08:36:41.886 VERBOSE - GB-PVR DVB Subtitles
2009-07-16 08:36:41.886 VERBOSE - Microsoft DTV-DVD Audio Decoder 0001
2009-07-16 08:36:41.886 VERBOSE - Default DirectSound Device
2009-07-16 08:36:41.886 VERBOSE - Video Renderer
2009-07-16 08:36:41.886 VERBOSE - Microsoft DTV-DVD Video Decoder
2009-07-16 08:36:41.886 VERBOSE - Microsoft DTV-DVD Audio Decoder
2009-07-16 08:36:41.886 VERBOSE - GB-PVR Flow Status
2009-07-16 08:36:41.886 VERBOSE - MPEG-2 Demultiplexer
2009-07-16 08:36:41.886 VERBOSE - SOURCE

Microsoft DTV-DVD audio Decoder and MPEG audio decoder
2009-07-16 08:41:24.889 VERBOSE Graph contains the following filters:
2009-07-16 08:41:24.889 VERBOSE - GB-PVR DVB Subtitles
2009-07-16 08:41:24.889 VERBOSE - MPEG Audio Decoder
2009-07-16 08:41:24.889 VERBOSE - Default DirectSound Device
2009-07-16 08:41:24.889 VERBOSE - Video Renderer
2009-07-16 08:41:24.889 VERBOSE - Microsoft DTV-DVD Video Decoder
2009-07-16 08:41:24.889 VERBOSE - Microsoft DTV-DVD Audio Decoder
2009-07-16 08:41:24.889 VERBOSE - GB-PVR Flow Status
2009-07-16 08:41:24.889 VERBOSE - MPEG-2 Demultiplexer
2009-07-16 08:41:24.889 VERBOSE - SOURCE


I've also attached the full logs in the hope they will be useful.

You can see the graph created by WinXP for the same file here.

[mvallevand]

could you cut a 20 MB sample and put it on megaupload I am curious about the aac content in the graph and in the BBC News log.

Martin

[McBainUK]

See post #29 here (60mb though).

[mvallevand]

I checked and there are two mp2 audio channels, one for the visually impaired which doesn't have any audio on this files. Maybe gbpvr is picking the wrong one? I'd suggest using tsremux on the file to cut out one of the audio streams to see if that is the problem. Select the audio channel with the lowest number and the video channel.

Martin

[McBainUK]

Thanks for the tip.

Is GB-PVR TS Reader supposed to appear on the list of filters from post #4? I notice it is in the Graph but not in the log files from Win7.

[whurlston]

Yeah, it's supposed to be in the graph. It's listed a "SOURCE" in the logs (last filter listed).

[McBainUK]

I'd suggest using tsremux on the file to cut out one of the audio streams to see if that is the problem. Select the audio channel with the lowest number and the video channel.

Doing this created a .ts file which is unplayable in WMP or GB-PVR. Any suggestions?