Peter,
Down in Puerto Rico right now, and time is short, so I'll be brief. Check o=
ut the Similar Songs section on my website. www.birdsongidentification.com=
That was exactly my approach. For the deeper explanations you need my book=
, Bird Song Defined Decoded Described and the PDF file from my website, but=
the songs are grouped there.
All the best,
Ernie Jardine
-----Original Message-----
From: Peter Shute [naturerecordists] <=
hoogroups.com>
To: naturerecordists <>
Sent: Fri, Feb 6, 2015 10:19 pm
Subject: Re: [Nature Recordists] Birdsong study software
That sounds interesting, but I've got a pc so I can't try it.
The idea of it is to learn to recognise bird calls? I've often thought it w=
ould be handy to be able to quickly select sections of recordings of simila=
r sounding birds, and be able to play the sections one after the other in a=
loop so you can hear the differences.
Can your program do anything like that?
I like the idea of being able to grab recordings from xeno canto.
Peter Shute
Sent from my iPhone
On 7 Feb 2015, at 11:46 am, Hugh Livingston <ma=
ilto:>; [naturerecordists] <=
hoogroups.com<>>; wrote:
After last week=E2=80=99s discussion of ways to master birdsong, I decided =
to draft up a little app that would work like musical ear training, so I=E2=
=80=99ve made it available for download. It only is compiled for OSX for no=
w; I may be able to compile it for windows later.
https://www.dropbox.com/s/z8mshz1rd5k03nw/BirdMixer.zip?dl=3D0
It=E2=80=99s simple to operate but here are the details of making it work.
At the top you can turn on the bird track in the square toggle box, and add=
in tracks of water and wind which help with the overall blend and make it =
more naturalistic (since these particular bird files are not smooth edits).=
You can use the "open" buttons to loop your own background files (wav and =
aiff only). Levels are controlled just below so you can make your own mix.
On the left are the 3 controls. Density is the number of birds that will ap=
pear in any given time frame, so you can start with few birds and work up t=
o a forestful. Variety allows you to let in only some of the birds, and gra=
dually increase the species diversity. However, in the current implementati=
on, it is only affecting the files as they appear in alphabetical order (to=
p of the scale is all files included, bottom is only the first file). There=
are 28 files in the current package, representing 5 or 6 birds. They are j=
ust some placeholders to show how it might work. If people like this, I can=
start working on ways to read from any folder you select on your disk, and=
eventually to go to a source like xenocanto and bring web-based files into=
the mix.
The final control is distance. The birds are randomly placed into a 360-deg=
ree binaural field (put on your headphones!) and are random distances from =
your head in the center of the field. Top of the scale is entirely distant =
(you probably won=E2=80=99t hear them they are so far away!), and bottom of=
the scale is randomly from very close to the full spectrum of distance ava=
ilable.
The display on the right provides various indications of what is happening.=
The largest spectrogram is a composite of all the birds. The bottom five s=
how the last five audio files that have played, individualized to help with=
recognition. The filenames appear to the left as your verification of ID, =
though eventually I should be able to extract metadata and put more user-fr=
iendly data into this field. I can also make it appear on a delayed basis, =
so you can attempt your own ID before it appears,
The circular indicators show the direction in the binaural field where the =
bird was placed by the spatial randomizer.
Let me know if you like it and if you have any suggestions!
Thanks
Hugh
"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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