Hi Gianni,
Yes, I know that you do this kind of digital signal processing also for a v=
ery long time. So, please accept my apologies.
Regards,
Raimund
--- In Gianni Pavan <> wrote:
>
> Hi Raimund,
> all the features available in our sound analysis packages (the
> commercial version, the most advanced research version dedicated to our o=
wn
> work, and the freeware version) come from a long development path dating
> back to 1980 with the development of computer software for spectrogram
> generation (initially on a Tektronix desktop computer, then on a HP 1000,
> then on a Sinclair QL, then on the first 8086 PCs available in 1986, then=
in
> 1989 by using boards with DSP I entered in the world of real-time analysi=
s
> of ultrasounds, later in 1995 I started working on windows to develop the
> very first versions of SeaPro that were made available in 1997 with suppo=
rt
> . In 1980 the generation of 1 second long spectrogram required 20 minutes=
,
> now it takes 10ms....).
> The use of advanced digital analysis hardware and software is well
> documented by many papers (see below) published since 1983 and presented =
in
> detail in conference presentations, some of which were attended by you. T=
he
> real-time shifting features we use since 2009 during naval surveys to
> aurally detect dolphins comes form software developed many years before f=
or
> just post-processing ultrasonic recordings (see paper published in 2001).
> So I could say that you may have learned from my work while developing yo=
ur
> software.... but I was always so kind not to tell in a public list.
>
> Here some references (I'm sorry the very first papers are in italian...):
>
> http://www.unipv.it/cibra/res_dspwstory_uk.html
>
> *Pavan G.*, 1983. Ricerche di elettronica applicata alla biologia. 1.
> Analisi computerizzata del canto degli uccelli. Pubbl. Ist. Entom. Univ. =
di
> Pavia, 24: 1-43.
>
>
>
> 2) PAVAN G., MAZZOLDI P., 1984. Banca dati della distribuzion=
e
> geografica di 22 specie di mammiferi in Italia. Dispense Corso di
> qualificazione per Guardie ecologiche volontarie, Volume 2. Comunit=E0 Mo=
ntana
> del Triangolo Lariano, Canzo
>
>
>
> *Pavan G.*, 1985. Analisi con calcolatore delle emissioni acustiche degl=
i
> uccelli. Annuario EST (Enciclopedia della Scienza e della Tecnica) 1985.
> Arnoldo Mondadori, Milano: 135-140.
>
>
>
> *Pavan G.*, 1985. Analisi con calcolatore delle emissioni acustiche degli
> uccelli. Atti III Conv. ital. Orn.. Dip. Biol. Anim. Univ. di Pavia:
> 289-291.
>
>
>
> MANZI R., *PAVAN G.*, FRUGIS S., 1988. Variation in the song of Cetti's
> warbler (*Cettia cetti* Temm.): a preliminary study. Monitore zool. ital.
> (N.S.), 22 (3): 287-298.
>
> *PAVAN G.*, 1992. A portable DSP workstation for real-time analysis of
> cetacean sounds in the field. European Research on Cetaceans, Cambridge
> (UK), 6: 165-169.
>
> TREMATERRA P., *PAVAN G.*, 1995. Role of ultrasound production and chemic=
al
> signals in the courtship behaviour of* Ephestia cautella* (Walker), *Ephe=
stia
> kuehniella* Zeller and *Plodia interpunctella* (H=FCbner) (Lepidoptera
> Pyralidae). Proc. 6th Int. Working Conference on Stored-product
> Protection. Vol.
> 1: 591-594.
>
>
>
> TREMATERRA P., *PAVAN G.*, 1995. Ultrasound production in the courtship
> behaviour of *Cadra cautella* (Walk.), *Ephestia kuehniella* Z. and *Plod=
ia
> interpunctella* (Hb.) (Lepidoptera Pyralidae). J. stored Prod. Res., 31 (=
1):
> 43-48.
>
> *PAVAN G.*, PRIANO M., DE CARLI P., LACHAUD J.-P., FANFANI A., GIOVANNOTT=
I
> M., 1997. Stridulatory organ and ultrasonic emission in certain species o=
f
> Ponerine ants (Genus *Ectatomma* and *Pachycondyla*, Hymenoptera,
> Formicidae). Bioacoustics, 8 (3&4): 209-221.
>
> *
> *
>
> *Pavan G.*, Manghi M., Fossati C., 2001. Software and hardware sound
> analysis tools for field work. Proc. 2nd Symposium on Underwater Bio-sona=
r
> and Bioacoustic Systems. Proc. I.O.A., Vol. 23 (part 4): 175-183.
>
> Riccobene G. and NEMO Collaboration*. 2009. Long-term measurements of
> acoustic background noise in very deep sea. Nucl. Instr. and Meth. A. 604
> (2009) S149-S157. * "NEMO Collaboration" includes *G.Pavan*
>
>
>
> 2011/4/8 Raimund <>
>
> >
> >
> > 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 dev=
ice
> > variants that come with the bundled Avisoft-RECORDER software and that
> > should still support sample rates from 250 to 1000 kHz, depending on th=
e
> > model. So, stay tuned...
> >
> > Regards,
> > Raimund
> >
> >
> > --- In Gianni Pavan <gpavan@> 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
> > spectrogram
> > > on the screen. THEN you can play back the files with the "Play speed"
> > option
> > > (in the "basic settings" panel) at reduced speed while maintaing the
> > correct
> > > frequency/time measures on the spectrogram display.
> > > I'm now working to add to seawave an option, already developed for ou=
r
> > own
> > > 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 si=
gnal
> > is
> > > still mono) you can get on the headphone two shifted bands, e.g. 40-6=
0kHz
> > on
> > > the right channel and 60-80 on the left channel. A further option sti=
ll
> > in
> > > development allows to "compress" the spectrum into the audible range,=
of
> > > course with artifacts, but still useful to "hear" the ultrasounds.
> > >
> > > Gianni
> >
> >
> > Reply to sender<=3DRe%3A%20New%20ultrasound%=
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> > "While a picture is worth a thousand words, a
> > sound is worth a thousand pictures." R. Murray Schafer via Bernie Kraus=
e.
> >
> >
> --
> Centro Interdisciplinare di Bioacustica e Ricerche Ambientali
> Universit=E0 degli Studi di Pavia
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