[mythtv] Mythmusic visualizations lagged??

Stuart Auchterlonie stuarta at squashedfrog.net
Thu Apr 28 15:33:32 UTC 2005


On Thu, Apr 28, 2005 at 04:52:41PM +0200, Kai Fritzowsky wrote:
> On Thu, Apr 28, 2005 at 07:23:07AM +0100, Ed Wildgoose wrote:
> > >Is it me (or my machine), or do some of the "better" mythmusic 
> > >visualizations (Goom, synaesthesia, bumpscope) seem to lag the 
> > >playback music by 1/2 - 3/4 of a second?  Mad props to the folks who 
> > >wrote Goom....it's an awesome visualization, but it doesn't seem to 
> > >get along real well with slower machines.
> > Hmm, shouldn't do?  The code is supposed to account for that, but you 
> > could be right...  Need to provide more info...
> 
> On my machine, which is really slow (P3-450 + PVR350), the music lags the
> visualizations. Some sort of over-compensation?
> 

I'd say the machine is so slow that the visualization being shown is the
previous one just running very late. 

To put that in perspective, if the visualization trigger is the beat 
of the music, on a fast machine the visualization happens just after 
the beat and so looks in sync.

On a slower machine it takes a while to draw the visualization so it
seems late.

On a really slow machine it only just finishes drawing the visualization
just before the next trigger comes in, so it seems EARLY because it is
closer to the next trigger.


Make sense (was about as clear as mud....)?
Stuart



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