spectrum math help

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I am trying to make a unit test sort of thing that looks at audio and tries
to determine if it is "clean" (what that means is to be determined, but I
think I am on the right track).

I am kinda floundering, I am hoping someone can understand what I am doing
and understand what I am looking for in the way of help.

This gives me something nice to look at:

gst-launch-1.0 audiotestsrc freq=8820 ! spectrascope ! videoconvert !
autovideosink

I would like something that my python code also thinks is nice.  But the
numbers I am getting aren't as nice.  I think.

https://github.com/CarlFK/veyepar/blob/master/tests/gst/gst-spectrum.py

The interesting numbers:

-56.050777435302734
-58.094539642333984
-35.57657241821289
-15.861119270324707
-14.443975448608398
-29.120201110839844
-56.85686111450195
-56.68980407714844

I am hoping for something squarer.

I think it is just a matter of the right freq and bands?

But I'm only mostly sure that's what I need. Anyone understand what I am
looking for?

-- 
Carl K

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<div dir=3D"ltr"><div dir=3D"ltr"><div></div><div>I am trying to make a uni=
t test sort of thing that looks at audio=C2=A0and tries to determine if it =
is &quot;clean&quot; (what that means is to be determined, but I think I am=
 on the right track).</div><div><br></div><div>I am kinda floundering, I am=
 hoping someone can understand what I am doing and understand what I am=C2=
=A0looking for in the way of help.=C2=A0 =C2=A0=C2=A0</div><div><br></div><=
div>This gives me something=C2=A0nice to look at:</div><div><br></div><div>=
gst-launch-1.0 audiotestsrc freq=3D8820 ! spectrascope ! videoconvert ! aut=
ovideosink</div><div><br></div><div>I would like something that my python c=
ode also thinks is nice.=C2=A0 But the numbers I am getting aren&#39;t as n=
ice.=C2=A0 I think.=C2=A0=C2=A0</div><div><br></div><div><a href=3D"https:/=
/github.com/CarlFK/veyepar/blob/master/tests/gst/gst-spectrum.py" target=3D=
"_blank">https://github.com/CarlFK/veyepar/blob/master/tests/gst/gst-spectr=
um.py</a></div><div><br></div><div>The interesting numbers:</div><div></div=
><div><br></div><div>-56.050777435302734<br>-58.094539642333984<br>-35.5765=
7241821289<br>-15.861119270324707<br>-14.443975448608398<br>-29.12020111083=
9844<br>-56.85686111450195<br>-56.68980407714844</div><div><br></div><div>I=
 am hoping for something squarer.=C2=A0=C2=A0</div><div><br></div><div>I th=
ink it is just a matter of the right freq and bands?</div><div><br></div><d=
iv>But I&#39;m only mostly sure that&#39;s what I need. Anyone understand w=
hat I am looking=C2=A0for?</div><div><br></div><span class=3D"gmail_signatu=
re_prefix">-- </span><br><div dir=3D"ltr" class=3D"gmail_signature" data-sm=
artmail=3D"gmail_signature"><div dir=3D"ltr"><span>Carl K<br></span></div><=
/div></div>
</div>

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