hello Peter,
> I'm glad to hear that these kinds of things are being planned. But >what =
exactly is meant by "draw a box around a signal"? If you mean drawing on a =
spectrogram then I'm certainly in favour of that.
Not completely sure what Elias meant of course, but I took it to mean exact=
ly that. One of the obvious uses would be to annotate different species or =
sound types in a recording.
> Where do the spectrograms I see on Xeno Canto come from? Are they auto ge=
nerated.
They are generated by the web server during uploading.
> How would you deal with spectrograms for half hour recordings?
Half an hour is a bit extreme, but the problem is not so much in generating=
them I think, but in the presentation.
That will have to be tackled before the annotation.
Here is an example of a long spectrogram: http://www.xeno-canto.org/sounds/=
uploaded/WOEAFQRMUD/ffts/XC62894-full.png
> Are you encouraging the uploading of ambient recordings with lots of spec=
ies in them?
Oh yes. Especially if you know which species can be heard. Such recordings =
bind the collection together nicely. Of course to upload them you would nee=
d to be able to identify at least one species :-) The recording belonging t=
o the long sonogram I just mentioned, notes a number of "background specie=
s": www.xeno-canto.org/62894
WP
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