Re: Shotgun microphone

["Raimund Specht" <>]

--- In  "Martyn Stewart"
>I agree, I get better response from my
>Telinga dish to low frequencies
>than I do from my shotguns

I guess that this phenomenon is caused by the infrasound-rejection
filter that is implemented in the MKH shotguns (Sennheiser added
that filter in order to reject the inherent sensitivity of shotguns
to infrasound). They specify a cutoff frequency of 50 Hz. As it can
be seen from your sonogram, the maximum energy of the grouse sound
is below 50Hz. It seems, that the Telinga does not have such an
internal high-pass filter and is therefore able to pick up these low
frequencies. But the dish should have no significant effect at those
frequencies.

Raimund



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