How do I separately extract the amplitude and frequency data from a signal?

[Intern Liz]

I have been trying tbob's method of using extract tones but then I keep hitting roadblocks. Yes I am getting the tones extracted but then it only extracts one. I have put a loop around hoping that will fix it but nothing. I know there is something wrong with the placement of the loop I just cant figure out what. I have attached the VI in vers. 8.2

[tbob]

Look at attached vi and read comments.

[Intern Liz]

You were right. I needed that extra for loop. Plus I was wiring them completely wrong. Now my only issue is that I only ever get 4 tones out of it. Even when I set the threshold to 0 or -1.

[tbob]

In the Extract Multiple Tone Information vi, the Max Num Tones input defaults to 4.  That is why you only get 4 tones.  If you set this to -1, you will get more tones than you probably want.  If you know how many tones you expect, set this input accordingly.

[Intern Liz]

thanks tbob. thats exactly what I needed to know.