inguz;230255 Wrote: 
> the mic response is not 20dB down at 5020Hz, it's 20dB *up*).

No, I think you were right all along.

drc believes that your mic is 20dB down at 5020Hz. drc sees that the
measured impulse response is relatively flat (green), and deduces that
your speaker+room system must be 20dB up. Therefore it produces a
filter with 20dB attenuation (purple).

Right?

inguz;230255 Wrote: 
> 
> 100.00 -20
> 110.00 0
> 5010.00 0
> 5020.00 -20
> 

For anyone trying this, note that drc can give strange results unless
the first line is 0Hz, and the last line half sample rate.
http://drc-fir.sourceforge.net/doc/drc.html#PSPointsFile


-- 
htrd

Toby Dickenson
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