[plug] Re: [OT] Television

[Shayne O'Neill]

I *think* these things actually look for diferences in the scan lines and
compression levels in the sound track. TV ad's are often highly compressed
in the audio to give the psychoacoustical appearance of 'loudness'. Its a
pretty suspect theory, and I doubt it works consistently at all.

------------------------------------
"Must not Sleep! Must warn others!"
-Aesop.
Shayne O'Neill. Indymedia. Fun.
http://www.perthimc.asn.au

On Mon, 2 Feb 2004, Lawrie Abbott wrote:

> senectus wrote:
>
> >MythTV has this sort of feature, but it has flaws.. ie a friend of mine has
> >a mythtv setup, and he was recording an episode of "west wing" where there
> >were "blackouts" in the story line.. Unfortunately the myth TV though that
> >every time there was a blackout in the show, it was the beginning of an
> >advert.. and so stopped recording till it came back on..
> >
> >
> >
> I wonder how it can tell the difference between an advert and the 'show'
> at all?  As far as I am aware there is no difference in the tranmitted
> signal although adverts _usually_ are louder (overall) and the colors
> are much more saturated. But automatic detection of adverts based on
> these qualities would be extremely unreliable.
>
> Lawrie
>
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