Audio out of sync with nVidia PureVideo (1 Viewer)

[thkogel]

Windows Version: XP Pro SP 2, all Updates
CPU Type: AMD Athlon 64 Venice
Memory: 512 MB DDR
Motherboard: MSI RS482-M4ILD
Motherboard Chipset: ATI Xpress200
Motherboard Bios: newest
Video Card: onboard
Video Card Driver: newest Omega driver
Sound Card: onboard Realtek
Sound Card AC3:
Sound Card Driver:
1. TV Card: Hauppauge Nova-S Plus
1. TV Card Type: DVB-S
1. TV Card Driver: normal BDA (not for MCE)
2. TV Card:
2. TV Card Type:
2. TV Card Driver:
Video Codec: nVidia PureVideo
Audio Codec: MPEGdec...
Satelite/CableTV Provider: Astra 19.2° East
HTPC Case: CM Cavalier 2
Power Supply: CM
Remote: Hauppauge 45-Buttons
TV: Philips 32" 16:9
TV - HTPC Connection: S-Video

When using the nVidia PureVideo Codec (in Video) then Audio is out of sync in myTV. In Video the sync is better but no good
Testet with all Audio Codecs.
When useing another video codec the sync is ok.

 

[infinite.loop]

When using the nVidia PureVideo Codec (in Video) then Audio is out of sync in myTV. In Video the sync is better but no good
Testet with all Audio Codecs.
When useing another video codec the sync is ok.

sounds like a codec issue. i am not sure if the devs can do anything against it. i will keep you posted.

 

[Broceliande]

Windows Version: Windows XP pro SP2
CPU Type: AMD Athlon 3200+
Memory: 1 Go DDR 400 ( dual channel enabled )
Motherboard: FS45 (Shuttle Inc)
Motherboard Chipset: Nforce 2
Motherboard Bios:
Video Card: Nvidia Geforce 5900XT
Video Card Driver: Last Forceware v 8.1.9.8
Sound Card: Nvidia AC97
Sound Card AC3:
Sound Card Driver: 6.14.442.30
1. TV Card: Hauppauge Wintv Nova-t Usb2
1. TV Card Type: DVB-T
1. TV Card Driver: 1.0.12.23189
2. TV Card: Pinnacle pctv 310i
2. TV Card Type: Hybride DVB-T/Analog
2. TV Card Driver: 1.3.3.0
Video Codec: Nvidia (Purevideo)
Audio Codec: Nvidia decoder
Satelite/CableTV Provider:
HTPC Case:
Power Supply:
Remote: Ati remote wonder I
TV:
TV - HTPC Connection:

Just to be sure ....maybe unusefull...
Did you check 'use hardware acceleration' in the purevideo settings in mediaportal config?
Why don't U use nividia audio decoder that comes with the video decoder?
Do U use ffdshow postprocessing ( try to uncheck if in that case )?
Is it the same if timeshifting disabled ?
I had no out of sync issues when using this decoder, so i guess something in your config slows down the codec so that audio and video can't be sync...
I don't think it's the Nvidia codec.

 

[thkogel]

Did you check 'use hardware acceleration' in the purevideo settings in mediaportal config?

in mediaportal i don't know. I the nVidia settings 'hardware acceleration' is checked

Why don't U use nividia audio decoder that comes with the video decoder?

I don't know too

Do U use ffdshow postprocessing ( try to uncheck if in that case )?

ffdshow is installed, but postprocessing isn't checked. I use ffdshow only for avi's.

Is it the same if timeshifting disabled ?

no testet.

 

[Broceliande]

Sorry , i have no more directions to follow for now...and have no dvb-s to test it...
All is fine with nova-t usb2

 

[thkogel]

When useing 'default DirectSound' as audio renderer I have no problems with the sync.
I the tv options was another audio renderer 'HD Realtek'. I dvd and video 'default DirectSound'. Never test to change this option befor.
When I use another audio renderer audio is out of sync.

It seems it is not a bug. :sorry: for posting here.

 

[Broceliande]

Well , that's fine if you could make it work.
The default directsound renderer is the most often the best way for an application to 'talk' to your soundcard, just because when you install the soundcard driver, the directsound default is especially set to use the sc driver directly, with best access time, so that the latency time will be optimal.
The fastest you access to your soundcard, the fastest it will do the job .
That's a simple explaination, but this is nearly how it work.