Found this signal testing software, works very well.
http://www.ymec.com/store/en/
Was looking for a way to visualise the noise floor, and find the cause of a slight noise on TT.
This one is stylus in an un-grooved band on test vinyl.
This one motor running arm up.
Never realised how sensitive the TT really is, the software picks up my foot stomps on a tile floor 2m away, although I cannot hear it through the speakers.
http://www.ymec.com/store/en/
Was looking for a way to visualise the noise floor, and find the cause of a slight noise on TT.
This one is stylus in an un-grooved band on test vinyl.

This one motor running arm up.

Never realised how sensitive the TT really is, the software picks up my foot stomps on a tile floor 2m away, although I cannot hear it through the speakers.