Well, that was interesting! I may have accidentally learned more about the tones by recording a bunch.
Just waving different coins or trash one by one by the coil at normal sweep speed left a lot of blank space and made big files. Beside, most of the coins came in as the same high tone anyway. I tried to edit it down, but it was easier to start over. After a few more aborted attempts, order and methodology went out the window.
I waved fairly fast 4 or so times at each setting and altered tones with the other hand as I waved. I then paused, switched modes or objects and waved some more. Then I compressed the files to 8bit mono.
The tones come stacatto quick but are repeated several times. At the end, a quarter and a washer got into an argument or something. I did that to show how fast the audio response is.
There's really too much variety to run through things so they might make actual sense to anyone listening. I just put as many of the tones in as short a space as I could.
I forgot to do pinpoint, but it's an increasing pitch as it gets nearer the object. Some of the audio modes are reminiscent of my Gold Bug 1.
I have the following files, all too large to post here, but I can email them. If anyone finds them interesting or useful feel free to host them or post them.
1. t2talk.wav - 1.2 meg, 29 second stream of tones.
2. t2talk2.wav - 800k, 18 second shortened version of above, just clipped extra tones and blank space.
3. rustycap.wav - 676k 16 seconds of waving a rusty cap while turning it in my hand and also advancing through the tone modes. At one point you can hear it breaking into multiple tones.
4. noise.wav - 144k 3.2 sec file of interferance noise in single tone mode, with a target waved by three times.
Yeah, it'll talk to ya alright!
Here's an email you can write me at to let me know which file you'd like, I'll email it out for a few days: btraders1@aol.com
I'll block the email soon so I'm not still getting requests a year from now.
-Ed