From: JimmyB_101 (jiva_at_humboldt1.com)
Date: 2001-12-23 04:43:08
--- In buildcheapeeg_at_yahoogroups.com, Jim Peters <jim_at_uazu.net> wrote:
>
> What I'm finding so far is that what I want to do, e.g. shift a
256Hz
> sampled signal up 8 octaves, has been implemented in theory many
> times, but the detail makes these solutions completely inappropriate
> for our particular application.
>
> (An 8-octave shift (256x) would map 0.2Hz to 51Hz, and 40Hz to
10kHz.
> This seems a fairly good mapping of interesting brain-wave
frequencies
> to the audible range, although other shifts than 8-octave should
also
> be possible from the same code. I'd like to keep with whole
octaves,
> so that the frequencies have a clear relation to the original
> frequencies, in case that matters).
>
for one thing, this would seem to bring the possibility of using
a sound card for A>D back into the picture.
This archive was generated by hypermail 2.1.4 : 2002-07-27 12:28:36 BST