I have finally gotten fed up with flying blind with no measurements other than an spl meter.
Room eq wizard microphone.
A calibrated measurement microphone for which we recommend the umik 1.
Connect a room measurement microphone like the umik 1 to the host pc or mac s audio input.
Route the mac or pc s audio output to the loudspeaker system.
Rew is free room acoustics analysis software for measuring and analysing room and loudspeaker responses.
Check the user manual for the relevant plugin or product for the capability to do advanced biquad programming room eq wizard rew which is a free download for windows mac os x and linux.
For testing purposes you ll need an omni directional microphone with a flat frequency response.
The audio measurement and analysis features of rew help you optimise the acoustics of your listening room studio or home theater and find the best locations for your speakers subwoofers and listening position.
Finally you ll set the microphone levels for testing.
However i have no idea what type kind of microphone to purchase to take measurements into the subsonic freqs.
Rew room eq wizard is a free download for windows macos or linux.
I have decided to download room eq wizard for my laptop.