I need to built microphone for measuring?

[Igor1920]

It is my first speaker.
Just put ETON tweeter 25sd1 and woofer 7-360/37hex in box.
Crossover was made on Mundorf component with BassBox X-over software. Crossover point 2000Hz. Not bad but not really amaizing. Tomorrow I will get box for ER4 with 7-372/32het I guess it should be much better. For now I can only change L-pad for tweeter then listen. Sure now I need measuring for tweeking crossover. Please adwize me how to build microphone for measuring software by myself. I know that the microphone shold be calibrated, how to calibrate? or I just need response curve of microphone, where I can get the one? I have LSPLAB and LSPCAD what you reccomend for beginner?
Also I would be glad if you give me recomendation on crossover.

 

[youyoung21147]

I've built a very good mic for 30 euros. It doesn't need any calibration for the frequency response.

You just have to calibrate your computer with a SPL meter and the microphone, or use a noise source that you know the SPL. The computer must know which level matches a given SPL.

Have a look here

http://www.freazer.com/perso/youyoung/micro.html
Or here if the link is down :

http://youyoung21147.site.voila.fr/micro.html

Greets !