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Article #19638Re: VCR comercial eliminator
From: Ian Moor
Date: Wed, 31 Aug 1988 18:37
Date: Wed, 31 Aug 1988 18:37
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A means of detecting adverts that I saw proposed a few years back was to examine the mean volume and dynamic range of the sound, the sound track of an advert is usually compressed and the mean volume is raised. Thus an advert sounds louder than the surrounding program. I never saw a published circuit though. I have the circuit for a `DJ killer' that produced a signal when a music changed to speech.
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!attcan!uunet!mcvax!ukc!eagle!icdoc!tgould!iwm From: iwm@asun3.ic.ac.uk (Ian Moor) Newsgroups: sci.electronics Subject: Re: VCR comercial eliminator Message-ID: <IWM.88Aug31193714@asun3.ic.ac.uk> Date: 31 Aug 88 18:37:46 GMT References: <257@ivucsb.UUCP> <16314@apple.Apple.COM> <898@amelia.nas.nasa.gov> Sender: news@doc.ic.ac.uk Organization: Dept. of Computing, Imperial College Lines: 7 Posting-Front-End: GNU Emacs 18.45.3 of Fri Jun 26 1987 on asun3 (berkeley-unix)