Hi,
Using decimation or the large transform size in baudline will enable yo=
u to zoom in / scroll around the frequency domain. Using the color aperture=
will set the full scale db range of interest, hence if you wish to see 65-=
66 db setting the aperture to 65 and 66 will use the full color range for j=
ust one dB. - The blip Fourier transform will enhance resolution to bring =
out details. like all software learning to drive it can take time.
Rather off topic but heres baudline analyzing seti data:-
http://baudline.blogspot.com/2010/04/setiquest-kepler-exo4-1420-mhz.html
To answer the question by ear the ear wins, to answer according to the anal=
ysis of a pre-recorded sound, perhaps spectrogram software, but often ive t=
ried to identify something that can be heard clearly yet cannot be displaye=
d in the detail required no matter how many configurations I try in baudlin=
e. Also acoustic / field knowledge far outweighs any analysis software. =
-Mike.
--- In Rob Danielson <> wrote:
>
> At 4:44 PM -0700 8/14/10, Dan Dugan wrote:
> >
> >
> > > Just curious: Can a human hear and distinguish more acutely than a
> >> computer spectrogram can display or visualize?
> >
> >I would say yes and no--If you can hear something, you can adjust a
> >spectrogram software to show it, but there's no one setting that
> >would show everything you can hear.
> >
> >-Dan
> >
>
> None of the sonogram tools I've used have come very close. Maybe I'm
> not using them to their full abilities or using the right tools. It
> not unusual for me to discern differences of 1/2 dB and 1/24th of an
> octave while making adjustments by ear. The sonogram apps I routinely
> use have a minimum amplitude range of 20dB. Are there sonogram apps
> that can distinguish fractions of a dB while only examining a 1/4 of
> an octave? This would be a very useful tool if it could also display
> these factors in real time. Rob D.
>
>
>
>
> --
>
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