On Tue, Dec 08, 2009 at 12:47:32AM +0100, Jörn Nettingsmeier wrote:
i thought the same, until i happened upon the website
of a bat fancier
who is recording his favourite animals with a pimped condenser mic with
extended hf response, and then either uses the sonographic "voiceprints"
to differentiate between species, or pitch-shifts the bat sounds into
the audible range. quite fascinating.
and it makes me think of david monacchi, that italian prof who played
his rainforest archival recordings at the ambi symposium in graz - for
those applications, it might actually make sense (iff you can get that
extended hf out of your signal chain, without excessive radio
interference - a rainforest should be a relatively rf-friendly
environment, if your colleagues keep their mobiles off...)
No such problem a few meters deep in the water. If you want
to cover all sorts of sonar applications as well, pump up the
sample rate to 1 MHz or so...
Ciao,
--
FA