Eric Frans writes:
quoted 6 lines } "watermarked" audio for purposes of copy-protection (from the idea of a> } "watermarked" audio for purposes of copy-protection (from the idea of a
> } sharp "inaudible" notch filter to e_mod's Liquid Audio format).
>
> So with this notch filter idea, they would completely eliminate a
> small bandwidth of frequency from the recording? Any URLs for more info.
> on this? Thanks.
don't worry, it died the death it so rightfully deserved. this was a
long time ago (maybe circa 1990?). i remember ads in the music rags
against this which showed a piano with a bunch of keys missing. i
even joined a mailing list for an organization that was dedicated to
stopping this abomination before it started.
the SCMS (serial copy management scam, er, scheme) code was instituted
instead but most pro-DATs either let you switch it off or just ignore
it entirely. and it only affects 44.1 transfers.
--
Jon Drukman jsd@gamespot.com SpotMedia Communications
...I was an infinitely hot and dense dot...