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From: et472@FreeNet.Carleton.CA (Michael Black)
Subject: Re: Detection of television commercials
Date: 6 Dec 2002 18:07:00 GMT
Organization: The National Capital FreeNet
Reply-To: et472@FreeNet.Carleton.CA (Michael Black)
NNTP-Posting-Date: 6 Dec 2002 18:07:00 GMT
X-Given-Sender: email@example.com (Michael Black)
> Kevin Aylward wrote:
>> John Jardine wrote:
>>> Richard Haendel wrote in message
>>>> Can anyone provide information on how to do this? I'm not looking to
>>>> build a "commercial killer" but I need to record and log certain
>>>> ones for a client.
>>> Have occasionally thought of picking up ad's by monitoring their
>>> greater loudness wrt normal programming.
>>> The perceived loudness increase appears to be from being
>>> 'compressed' up to the hilt and should be distinguishable by a very
>>> flat audio spectrum.
>> Not in the UK. No question about it, they simple turn the volume way up
>> on adverts.
> They can't.
> TV audio is broadcast at a certain level.
> Attempt to turn it up beyond that level and limiters in the transmitter will
> kick in.
I thought that was the point. It's not that commercials are higher in
volume, just that they are compressed so most of the commercial is as
loud as it can get, rather than the wide dynamic range of regular
programming. It never gets louder than some limit, but all of it
is closer to that limit.
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