cd's have no trouble encoding <20hz, infact, i think cd's have a better
time with low frequencies than vinyl does, (no needle inertia issues).
most decent sound systems have low frequency filters to keep speakers from
doing unnecessary work, of course there is not much threat of encountering
any decent sound systems while shopping at radioshack. i think for my
next project i'm going to attach a subwoofer directly to my face and see
which artists/labels use ultra low frequency eliminators during mastering.
if you were very clever you could hide information in the ultra low
frequency range of cd's. a listener could access that information by
playing the cd at ten times normal speed. hmm... i might try this.
n.
quoted 4 lines If the lowest frequency you can get out of a CD is 20 Hz, how did you> > If the lowest frequency you can get out of a CD is 20 Hz, how did you
> > achieve the lower frequencies?
>
> i guess you generate them straight from the sound card?
trade secret.
quoted 4 lines -->
> --
> david
>