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Audio/Video sync issues

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Hi,

 

I am evaluating vmware player 4.0.1 running under Win 7 64 bit Home Premium SP1 Intel i5 4GB RAM

 

I've got two VM's up at the moment:

 

1 x XP Pro 32 bit SP3

 

1 x Unbuntu 11.10

 

Using VLC if I play a local mpeg2 (All in Windows XP VM) the lip sync is off (My guess around 300ms)

 

If I do the same in Ubuntu VM I get a similar discrepancy (Again, I think around 300ms. It's enough to be quite noticable)

 

[If I run the tests under Windows 7 host native op system it seems to lip sync fine]

 

(The problem also manifests in an identical fashion, under the VM's, with streaming YouTube/Flash media - i.e. a similar audio/video lag)

 

Two questions for you:

 

1/ Is it reasonable for me to expect reasonable lip sync under the VM's ?

2/ If the answer to 1 is Yes then how do I trouble shoot this?

 

Many thanks in advance, Stef

 

PS The i5 dual cores do not seem to be stressed at all (Below 20% utilization)


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