Hello from Sweden!
Maybe I am missing out some of the original questions about the wave-form
representations of sounds, but I thought I should just mention the
wave-form representations used at http://freesound.org/ There are two
modes, one is more traditional spectrogram and the other (main mode) is
amplitude + different colors depending of present frequencies. Both modes
gives a visual and fast reading of what might happen at different sections.
I don=B4t know what the plugins are used and if it is possible to find for
applications elsewhere. If someone finds out I am interested to know more
about that aswell.
Here is a specific sound of a thunderstorm:
http://www.freesound.org/people/RHumphries/sounds/2525/
All the best,
Bj=F6rn Eriksson
On Tue, Jan 24, 2012 at 6:43 PM, Dan Dugan <> wrote:
> **
>
>
>
> On Jan 24, 2012, at 4:09 AM, Volker Widmann wrote:
>
> > Dan,
> >
> > that is great!
> >
> > Did you use Sonic Visualiser for that?
>
> No, the 24-hour graphic I referenced is published by the Natural Sounds
> Program Center of the National Park Service in Colorado Springs. They hav=
e
> software that makes it up from =E2=85=93-octave data, rather than from au=
dio
> directly. That process is a legacy of smaller memory capacity in the
> field--their automated monitoring stations used to record =E2=85=93-octav=
e data
> continuously and a few minutes of actual audio every hour. Things are
> different now, but I don't think they have adapted the software yet to wo=
rk
> with audio files. I wish they would!
>
> > Can you go more into detail about the parameters fiddled with?
>
> If you get Sonic Visualiser I can send you the parameters I start off wit=
h.
>
> > I think here a pictures tells more than listening to hours of sound.
>
> It sure does!
>
> -Dan
>
>
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