[PD] Measuring position between two microphones?

Chris chris at proquariat.de
Sat Jun 23 22:12:53 CEST 2007


Hi,
I made a patch to locate the position of a sound source between two 
microphones, which looks like this:
[adc~]
|         |
|        [threshold~ 0.2 100]
|                                        |
[threshold~ 0.2 100]      |
                    |     [delay 10]
                    |      |
                  [timer]

So a number of 10ms means that the source is exactly between the two 
microphones. This patch works kind of reliable and accurate. But I was 
wondering if there is a better possibility with higher resolution? At 
the moment I can distinguish the position with an accuracy of 1.333 ms, 
means I get about 12 different values out of my tube.

Has anyone an idea how I can get more precise readings? I thought about 
comparing the amplitudes of the two waves I get, but I have no idea how 
to do this or if this would be more exact.

Thanks for any help,
Chris




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