COMPARISION: 3&SQ - No Notch, Notch & Equalization.


This plot has a frequency range from 1000Hz to 9000Hz, which is the range in which the passive notch filter has effect on the frequency response. Note that the passive notch filter does not eliminate the cavity resonance. Parametric equalization can and does fully solve the problem!

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Microphone at 2 meters distance and a height of 1 meter.
MLS: 32 averages, 432/4096 point FFT, Half-Bingham window.
1/12 octave smoothing - Amplitude Axis @ 6dB per division.
Nominal 'ZERO' dB line @ -6dB on plot.
Commentary to follow.


Baffle: 3&SQ Left - No Notch Filter.
Responses with Reflections Included.
Table of Contents - Two-Sided Baffles.
Table of Contents - Main Menu.