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No audio via MVP when playing digital sourced recordings

 
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No audio via MVP when playing digital sourced recordings
NI2O
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Posts: 82
Threads: 12
Joined: Dec 2007
#1
2008-01-15, 01:42 AM
I'm pretty sure that this is a CODEC issue but I don't know how to solve it.

On the machine proper I can play back ALL my recorded shows regardless of capture source. On my 2 MVP's however I can play all the files but I get no sound on files/recordings that were made via my QAM or ATSC cards.

Also, when streaming live tv over the network I get sound when the source is analog but not when digital.

I would have never noticed this issue had it not been for my children's liking of Qubo and PBS Kids both of which are only available to us via OTA ATSC.
System 1:
Emachines W3502 Intel Celeron D 3.2GHz - NVidia 8400 series with 256MB - 1.5GB RAM - 500GB HDD
WinTV PVR USB2 (analog video) - Pinnacle PCTV HD (ATSC) - WinXP Pro SP3

System 2:
Re-purposed CaptiveWorks CW3000HD 3.01GHz Dual Core Athlon 64 X2 6000+ - NVidia 6100 series with 256MB - 3GB RAM - 500GB HDD
Hauppauge HVR-1600 (ATSC/analog video) - Twinhan 1020 - WinXP Pro SP3 - 3x MVP1000 1x M34A

http://www.g7ltt.com
sub
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NextPVR HQ, New Zealand
Posts: 106,809
Threads: 769
Joined: Nov 2003
#2
2008-01-15, 01:46 AM
Your QAM/ATSC recordings most likely have AC3 audio. The MVP can only play MPEG1 Layer 2 audio.
NI2O
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Posts: 82
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Joined: Dec 2007
#3
2008-01-15, 01:51 AM (This post was last modified: 2008-01-15, 02:08 AM by NI2O.)
sub Wrote:Your QAM/ATSC recordings most likely have AC3 audio. The MVP can only play MPEG1 Layer 2 audio.

Aha! That would explain things.

Is there anyway to transcode this on the fly? I don't usually transcode to AVI as I don't need the disk space (500gb HDD installed) and I also find that I get a severe performace hit when my system is transcoding as well as recording and playing all at once. Cancel the transcode and things run smoothly.
System 1:
Emachines W3502 Intel Celeron D 3.2GHz - NVidia 8400 series with 256MB - 1.5GB RAM - 500GB HDD
WinTV PVR USB2 (analog video) - Pinnacle PCTV HD (ATSC) - WinXP Pro SP3

System 2:
Re-purposed CaptiveWorks CW3000HD 3.01GHz Dual Core Athlon 64 X2 6000+ - NVidia 6100 series with 256MB - 3GB RAM - 500GB HDD
Hauppauge HVR-1600 (ATSC/analog video) - Twinhan 1020 - WinXP Pro SP3 - 3x MVP1000 1x M34A

http://www.g7ltt.com
sub
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NextPVR HQ, New Zealand
Posts: 106,809
Threads: 769
Joined: Nov 2003
#4
2008-01-15, 01:53 AM
There is nothing built-in that will handle this. If you had been transcoding your recordings to some non-MPG file format, then the audio would have been corrected with the on the fly transcoding - otherwise there isnt really much I can suggest.
NI2O
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Posts: 82
Threads: 12
Joined: Dec 2007
#5
2008-01-15, 02:06 AM
sub Wrote:otherwise there isnt really much I can suggest.

Oh well, Looks like I'll be transcoding The Saddle Club and Caillou then. Good job I don't want to watch TV during the day :}

Thanks Sub!
System 1:
Emachines W3502 Intel Celeron D 3.2GHz - NVidia 8400 series with 256MB - 1.5GB RAM - 500GB HDD
WinTV PVR USB2 (analog video) - Pinnacle PCTV HD (ATSC) - WinXP Pro SP3

System 2:
Re-purposed CaptiveWorks CW3000HD 3.01GHz Dual Core Athlon 64 X2 6000+ - NVidia 6100 series with 256MB - 3GB RAM - 500GB HDD
Hauppauge HVR-1600 (ATSC/analog video) - Twinhan 1020 - WinXP Pro SP3 - 3x MVP1000 1x M34A

http://www.g7ltt.com
mvallevand
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Ontario Canada
Posts: 53,196
Threads: 958
Joined: May 2006
#6
2008-01-15, 02:07 AM
mvpmc will decode and play the ac3 audio but it will be out of sync, but sometimes it surprises me. You might want to give it a try, just to give it a listen.

Martin
NI2O
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Posts: 82
Threads: 12
Joined: Dec 2007
#7
2008-01-15, 02:10 AM
mvallevand Wrote:mvpmc will decode and play the ac3 audio but it will be out of sync, but sometimes it surprises me. You might want to give it a try, just to give it a listen.

Martin

Definately no audio on the MVP. My daughter sat and watched The Saddle Club for about 20 minutes before complaining that the audio wouldn't come on.
System 1:
Emachines W3502 Intel Celeron D 3.2GHz - NVidia 8400 series with 256MB - 1.5GB RAM - 500GB HDD
WinTV PVR USB2 (analog video) - Pinnacle PCTV HD (ATSC) - WinXP Pro SP3

System 2:
Re-purposed CaptiveWorks CW3000HD 3.01GHz Dual Core Athlon 64 X2 6000+ - NVidia 6100 series with 256MB - 3GB RAM - 500GB HDD
Hauppauge HVR-1600 (ATSC/analog video) - Twinhan 1020 - WinXP Pro SP3 - 3x MVP1000 1x M34A

http://www.g7ltt.com
mvallevand
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Posting Freak

Ontario Canada
Posts: 53,196
Threads: 958
Joined: May 2006
#8
2008-01-15, 02:13 AM
With the mvpmc dongle?

Martin
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