I suggest reducing the fft window size. At least in Soundtrack Pro it enables
me to view a longer sample at a time, and gives a smoother experience, since it
takes away some of the strain on the processor.
As of my understanding, I believe the resolution is only critical on lower
frequencies. So a reduction in resolution and some tweaking of the frequency-
and amplitude display, should point out any anomaly pretty quickly. I usually
get 15 minutes worth of recordings on screen at a time, where most activity is
fairly protruding.
Lowering the resloution to, say 512, makes scrolling unproblematic.
I may not fully understand the science of it, but in my experience this works
pretty well.
Best
-A
--- In Peter Shute <> wrote:
>
> I can see that it would be useful for short listing sections to include in an
> edited version, but remember that the original request was for methods of
> finding owl calls in long recordings.
>
> Peter Shute
>
> Sent from my iPad
>
> On 08/04/2013, at 11:14 PM, "rapsac" <<>> wrote:
>
>
>
> Well, you don't get much of an impression from a single fragment, but
> you get a feeling for changes over time and if anything stands out you
> can just stop skipping. It's not a great method but it saves the time of
> trying to think of a smart solution ;)
>
> Caspar
>
> Peter Shute skrev 2013-04-08 12:46:
> > Caspar, are you listening to a short burst every few seconds though the
> > recording? What sort of impression can you get from a fraction of a second?
> >
> > Peter Shute
> >
> > Sent from my iPad
> >
> > On 08/04/2013, at 6:28 PM, "rapsac"
> > <<rapsac%40bredband.net><<rapsac%40bredband.net>>>
> > wrote:
> >
> >
> >
> > Hi,
> >
> > I first divide the recording into shorter manageable files, then scan
> > them using Sound Forge by clicking through the waveform while playing
> > back. With some practice you only need to listen to a fraction of a
> > second for each "click".
> >
> > Caspar
> >
> > chrishails50 wrote 2013-04-07 18:20:
> >> 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
> >> some 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 the
> >> 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
> >>
> >>
> >>
> >> ------------------------------------
> >>
> >> "While a picture is worth a thousand words, a
> >> sound is worth a thousand pictures." R. Murray Schafer via Bernie Krause.
> >>
> >> Yahoo! Groups Links
> >>
> >>
> >>
> >>
> >
> >
> >
> >
> > ------------------------------------
> >
> > "While a picture is worth a thousand words, a
> > sound is worth a thousand pictures." R. Murray Schafer via Bernie Krause.
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
>
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