I can hear the musicians rearing up to complain that the ear can detect variations that the instruments can’t handle, but yes, there are analysis tools. This is given you have a dead quiet, echo-free room and a very good microphone – two things you’re not likely to have.
One is analyze > Plot Spectrum. This is a spectrum of a G piano note.
Thank you so much I have a sound proof hearing test booth and a very good microphone. Do you have better reccomendations? Anything would be very helpful, thanks I will give your input a test.
A “very good” microphone might not be the best tool. A “very good” vocal mic is designed to make vocals sound very good, not to give accurate measurements. You will probably get more useful measurements using a microphone that is designed for measurements. Behringer make an inexpensive measurement microphone: http://www.behringer.com/EN/Products/ECM8000.aspx (it requires “phantom power” so it needs to be plugged into a desk or pre-amp that can supply phantom power).
The hearing test booth is likely to be a great asset, but if it is quite small and enclosed (as I assume it is) then the bass (low frequency) measurements are likely to be a bit off. Confined spaces can do strange and unpredictable things to low frequencies.
Wow. After my test from your advise you have been right on. Keep them coming. The bass was defiantly overkill I opened the door and it went back to normal / Average measurements. You may be shocked by the instrument I am measuring. It is a air instrument. Made of Wood some times acrylic. I am curious what you might think it is.