SignalScope FFT Analyzer for Setting Azimuth

I use a now ancient Signet Cartridge Analyzer and the Shure test LP made to work with the Signet.  I agree with Captain Winters; I don't see why you'd need to use FFT, but I guess your question is related to the fact that you already own the computer program of which it is a part. Therefore, you wouldn't have to spend any more money. The Signet has a 'scope output, optional. I do own a 'scope but I've never connected it to the Signet. I just use the built-in db meter.

Thanks captain_winters and lewm.  I used the Sound Level Meter and Meter Bridge in the SignalScope app, along with the Oscilloppoi app to fine tune the azimuth.  I know you can't get it absolutely 100% even for crosstalk levels, but I was able to get it very, very very close.

Great success with Fozgometer

Pitbull, There is disagreement even among the extreme cognoscenti about whether the goal should be equal crosstalk in both channels or best possible crosstalk in EACH channel, while disregarding any difference between the two channels.  One thing is for sure, you usually cannot have it both ways; the setting that gives equal crosstalk, L into R and R into L, will generally not be the same as the setting that gives the best possible numbers, in terms of db. That's my personal experience, and it fits with what has been written. You can find essays on this subject at Vinyl Asylum and possibly on Vinyl Engine.