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Hi Paul,
that shouldn't be so... According to my
favourite hex editor, I get the same result as you for Stefan's samples.
But my first samples should be
698.0 1628.0
2096.01 -4322.74
1390.22 -914.946
-1856.24 1887.09
etc.
The sign seems to be preserved in your numbers
(mostly?). But the magnitude is apparently being limited to
one. Is ebnaut-rx software expecting sample values to be smaller
than unity?
The reason behind the vastly different magnitudes
between Stefan and myself is that we have ticked different
formatting options for SpecLab FFT export (float versus scaled-up integer). But
this should have no side effects other than a different global scale
factor.
Best 73,
Markus
Sent: Saturday, April 02, 2016 9:09 PM
Subject: Re: VLF: 8270: now 8269.990Hz
Markus wrote:
> I have uploaded
the wavs
Thanks I'm looking at those.
Your wav 04010012.wav
contains only samples values
of +/- 1,
eg
sample
ch1 ch2
0
1 1
1
1 -1
3
-1 1
4
-1 1
5
-1 -1
6
-1 1
...
Stefan's dk7fc_04010002.wav has
samples like
sample
ch1 ch2
0 5.2787364e-06 -6.6896901e-06
1
-3.0420255e-05 4.7603622e-05
2
-2.1549407e-05 -2.1126121e-05
3
4.9282797e-05 -9.3932264e-05
4 -2.4563633e-05
-7.9385005e-05
5 2.7562026e-05
1.3096724e-05
6 -0.00012802938
0.00018837629
...
Is that intentional? I expect it might
lose a dB or two.
--
Paul
Nicholson
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