For DOS and Windows I already have a real-time high-resolution spectrogram
software I developed for bioacoustic research.
A free version for both platforms is available on the net
(http://www.unipv.it/cibra/softw.html).
On a PIII 500, the Windows version runs up to 96kHz/2 channels while
recording to disk.
I'm looking for something similar in Linux.
Gianni
At 14.50 17/03/2002 -0500, you wrote:
>At 02:16 PM 3/17/02 -0500, Walt wrote:
> >Many of the sound editors can do the waveform as in some forms of
> >detailed editing you might be editing that by drawing down at the sample
> >by sample level. Most don't generate it as you play, but generate this
> >on opening and run a marker line along it while playing. No real math is
> >involved in generating the waveform display.
>
>Walt:
>
>Cool Edit Pro, on PCs, set to only slightly low res settings (resolution
>256 bands, window width 100%, Style: Log plot energy range 120 dB) it
>keeps up fine with both making a spectrum and recording an incoming
>44.1kHz, 16 bit stereo signal. The software automatically scrolls to the
>left, while making new chunks of spectrum (0 to 22 kHZ) at the cursor on
>the right. Every now and then a single spectrum-chunk gets by it,
>especially on startup. During "play to end" with the visible window set
>to 10 seconds, it also scrolls very smoothly on playback for the full
>length of the cut (> 10 minutes).
>
>I make many recordings in the spectrum mode this way, to see the spectrum
>on input, both channels, recognize incoming bird sounds with high pitched
>components my hearing sometimes misses. This is on a year-old $900 Win
>box, Pentium III 700 MHz. Smooth as silk. You can probably get one used
>for less than $500 now, and the software is $ 275?
>
>my very best,
>
>Marty Michener
>MIST Software Associates
>75 Hannah Drive, Hollis, NH 03049
>
>coming soon : EnjoyBirds bird identification software.
>
>
>
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Gianni Pavan
Email
Centro Interdisciplinare di Bioacustica e Ricerche Ambientali
Universita' degli Studi di Pavia
Via Taramelli 24, 27100 PAVIA, ITALIA
Tel/Fax +39-0382-525234 Laboratori
Tel/Fax +39-0382-526208 Segreteria
Web http://www.unipv.it/cibra
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