[mythtv-users] Commercial detection idea

[David Whyte]

Being a UK expat, I can tell you it is much worse here in Aus. You can't 
fall alseep to the TV here, otherwise you get woken up at every ad becuase 
the 'apparent' change in volume is insane.

I do think this is a great idea, and because they do what they do to make 
the ads appear louder (this energy thing Brad mentioned), it should be 
programmatically relatviely easy enough...I think!

Good luck with it,
Dave

On Apr 8, 2005 7:30 PM, Steve Christall <mythtv at mctubster.com> wrote:
> 
> Brad Templeton wrote:
> 
> > And it might also be worth looking not just at the lulls but in sudden
> > changes in the mean energy.
> >
> > The rules prohibit commercials from actually being louder than the show,
> > but that's the peak they measure. The show uses the peak only for loud
> > things, like explosions, but the commercial tries to get as close to it
> > as it can. At least some do.
> >
> Yes, don't get me started how much they crank the volume of commercials
> here in the UK.
> 
> As it stands the commercial detection code in the UK (CVS as of end
> Mar05) basically doesn't work. Maybe the channels in the US dont mix it
> up as much as here?
> 
> Anyway back to the sound. Yes the average sound levels during the ad
> breaks really crank (at least in the UK). To me it appears that all ads
> / promos are run through a compressor, decreasing dynamic range and
> increasing the average energy much much higher that the shows. This
> combined with statistical analysis ... eg commercials run 3-4 mins, four
> or six breaks an hour, I would have thought this would work.
> 
> I can't code to save myself, but I can and will have a look at the
> average levels of a statistically significant number of shows to see if
> it is obvious.
> 
> Stay tuned
> Best
> Steve
> _______________________________________________
> mythtv-users mailing list
> mythtv-users at mythtv.org
> http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
> 



-- 
GMAIL is 'da bomb baby....YEAH

I have GMail invites, if you want one, email me direct.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://mythtv.org/pipermail/mythtv-users/attachments/20050409/a014487a/attachment.htm