naturerecordists
[Top] [All Lists]

Re: New ultrasound microphone - The Ultramic200K

Subject: Re: New ultrasound microphone - The Ultramic200K
From: "Raimund" animalsounds
Date: Fri Apr 8, 2011 8:03 am ((PDT))
Hi Gianni,

it seems that SeaWave now learns all the features that I implemented in my =
Avisoft-RECORDER software during the last 12 years ;-)

Bye the way, there will be soon considerably cheaper UltraSoundGate device =
variants that come with the bundled Avisoft-RECORDER software and that shou=
ld still support sample rates from 250 to 1000 kHz, depending on the model.=
 So, stay tuned...

Regards,
Raimund


--- In  Gianni Pavan <> wrote:
>
> Hi,
>      if you use the Ultramic200 with SeaWave, even on a small tablet or
> netbook pc you can record to disk at 200k sampling and see the spectrogra=
m
> on the screen. THEN you can play back the files with the "Play speed" opt=
ion
> (in the "basic settings" panel) at reduced speed while maintaing the corr=
ect
> frequency/time measures on the spectrogram display.
> I'm now working to add to seawave an option, already developed for our ow=
n
> research on dolphins, that allows - while recording and displaying - to
> shift in real-time a 20 kHz frequency band down to audible range, e.g. 60=
-80
> kHz down to 0-20 kHz; if working in 2 channels mode (but the input signal=
 is
> still mono) you can get on the headphone two shifted bands, e.g. 40-60kHz=
 on
> the right channel and 60-80 on the left channel. A further option still i=
n
> development allows to "compress" the spectrum into the audible range, of
> course with artifacts, but still useful to "hear" the ultrasounds.
>
> Gianni







<Prev in Thread] Current Thread [Next in Thread>
Admin

The University of NSW School of Computer and Engineering takes no responsibility for the contents of this archive. It is purely a compilation of material sent by many people to the naturerecordists mailing list. It has not been checked for accuracy nor its content verified in any way. If you wish to get material removed from the archive or have other queries about the archive e-mail Andrew Taylor at this address: andrewt@cse.unsw.EDU.AU