Dear Gianni,
We=92re on the same page here! It=92s highly desirable to have a sonogram i=
ndex image that can be scanned quickly to locate sounds that might be of in=
terest.
-Dan
> On Jan 14, 2018, at 1:50 AM, Gianni Pavan [naturer=
ecordists] <> wrote:
>
>
>
> Dear Dan and Klas,
> other than using pocket recorders for nature recordings, either =
short recordings on selected subjects or long unattended recordings for sou=
ndscapes. I also use autonomous recorders for long term soundscape recordin=
g. As I use several recorders in different places, then the main problem is=
analyzing them or at least getting a picture of their contents. For this p=
urpose I use my own software to produce compact spectrograms showing a whol=
e day. I like to record 10 minutes every 30 minutes, 24/24h, to get 48 fram=
es/day. In this web page (http://www.unipv.it/cibra/cibra_sabiod.html <http=
://www.unipv.it/cibra/cibra_sabiod.html> - I'=ECm sorry it is in italian), =
you can see my "compact spectrograms". I use them to have a global picture =
of what I recorded, I can then focus on days with clenaest and richest reco=
rdings, discover recognizable and recurrent sound patterns, and also discov=
er unusual sound patterns. By using these spectrograms I can also compare s=
ites with different soundscapes, e.g. with different sound diversity and so=
und richness, or with different levels of anthropogenic noise. To speed up =
analysis, I can easily recognize and skip silent days or rainy days and foc=
us only on the best recordings. I use these images as an index of my record=
ings and then I focus with higher resolution spectrograms on specifc patter=
ns and events, down to few seconds spectrograms to recognize species or eve=
nts. The freeware version of my software does not includes this option yet,=
but I'm planning to release it soon.
>
> If interested, in the following paper you can find the same compact spect=
rograms with an overview of the research project behind them:
> https://www.researchgate.net/publication/284164121 <https://www.researchg=
ate.net/publication/284164121>
>
> I'm also searching for other software to make easier the organization, ca=
taloguing, and analysis of huge amount of files at different time scales, e=
..g. from seconds to hours and to days. Do you have any hint ?
>
> Thanks for all the valuable infos and thoughts I get form your posts, and=
ciao to all my friends on the list
>
> Gianni Pavan
>
>
>
>
>
> 2018-01-13 0:06 GMT+01:00 Klas <=
..se> [naturerecordists] < <naturere=
>>:
> Hi Dan,
>
> for sonograms and editing I use a very old version of Audicity. Nagra SD=
> gives me 60 min files and Olympus and Sony 3h 23m files. It takes about
> a minute to open such a long file. You can save it as a .aud project.
> No, I don=B4t save the sonograms. If I use Audicity to make any kind of
> filtering or EQ however, I save a screen dump of the settings. A cut
> will be named after what happens, or the bird, animal or event + the
> original file name and stored with the original file in a folder named
> after year, equipment used and place. I often take a picture of the
> equipment used and add a text file into the folder with the same name as=
> the folder or "lead words". Writing .txt in the search function makes
> the search much faster. For documentary purposes, for what it is worth,
> I save at least 10-15 full days from every year.
>
> Was that an answer?
>
> Klas.
>
> On 2018-01-12 20:12, Dan Dugan <>=
[naturerecordists] wrote:
> > Dear Klas, you wrote,
> >
> >
> >> Making SoundScapes is different. Then I place a mic and a recorder out
> >> somewhere, often at a place that I am familiar with from before, and
> >> leave it till the next day or longer. Coming back, I replace the batte=
ry
> >> and the card and start recording again. Since many years, I have one
> >> test site where a stereo mic and recorder is out 24/7 from February to
> >> the end of June. It=B4s a 2-3 hours job to sonogram and listen to the
> >> files, but also very relaxing and rewarding.
> >>
> > What software do you use to make sonograms of your long files? Do you k=
eep the sonograms as indexes to the audio files?
> >
> > -Dan
> >
> > ------------------------------------
> > Posted by: Dan Dugan< <>>
> > ------------------------------------
> >
> > "While a picture is worth a thousand words, a
> > sound is worth a thousand pictures." R. Murray Schafer via Bernie Kraus=
e.
> >
> >
> > ------------------------------------
> >
> > Yahoo Groups Links
> >
>
> Posted by: Klas < <>>
>
>
> --
> Centro Interdisciplinare di Bioacustica e Ricerche Ambientali
> Universit=E0 degli Studi di Pavia
> Via Taramelli 24, 27100 Pavia
> http://www.unipv.it/cibra <http://www.unipv.it/cibra>
> http://mammiferimarini.unipv.it <http://mammiferimarini.unipv.it/>
> http://sites.google.com/site/ecoacousticssociety/ <http://sites.google.co=
m/site/ecoacousticssociety/>
>
>
>
>
>
>
>
"While a picture is worth a thousand words, a
sound is worth a thousand pictures." R. Murray Schafer via Bernie Krause.
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