Hi, I often have this problem too. Depending on the interest I have, on the
contents I'm searching for, and on the type of recording I'm browsing I
have these approaches, but no one completely satisfactory:
1) load everything in Audition and look at the energy content of the files
by showing, say, 10 min at a time on the screen.
2) play the files at 10 times their original speed while visualizing the
spectrogram (30 sec, 1 or 2 minutes on screen depending on the sound
contents - I do this with my software Seapro or Seawave)
I'd love to hear about other solutions
Gianni
2013/4/7 chrishails50 <>
> **
>
>
> Dear all
>
> Related to my last question, I wonder if anyone has any great tricks for
> reviewing long duration recordings ?
>
> I have over the years amassed enough reasonable mics and machines to have
> at least two sets (and maybe a third) that can be left out unattended
> overnight. I would like to survey my local woods and forests and catch so=
me
> of the owls that are out there that I have not yet recorded.
>
> But my question is how to review an 8-10 hour session efficiently ? In th=
e
> past I have had them playing background whilst I do other tasks, but
> normally I can only spend maybe 2 hours doing that. I then moved on to
> scanning the waveform files (for night-time this works I think): I apply =
a
> 100% notch filter below 600Hz to get rid of passing planes and boy racers
> then scroll the waveform (I use Audition 3)and look for peaks that could =
be
> interesting sounds. But as I have just discovered even this takes a chunk
> of time if I have two machines running overnight.
>
> I know a real field guy would spend the night wandering the forest with
> his parabola, but I have a day job too.....has anyone else faced this ?
>
> Thanks for any tips or ideas.
>
> Chris
> http://www.wildechoes.org
>
>
>
--
Centro Interdisciplinare di Bioacustica e Ricerche Ambientali
Universit=E0 degli Studi di Pavia
Via Taramelli 24, 27100 Pavia
http://www.unipv.it/cibra
http://mammiferimarini.unipv.it
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