Audio Jack Sampling Rate?

Fox Mulder Quakeman1 at
Sun Sep 21 12:06:12 CEST 2008

Here's another approach:
Why not use two freerunner on different locations which do have one ir
input attached. They synced the clock with ntp and both of them save the
time difference between mic and ir data. You know the exact location of
both and you could sync the data over wlan/gprs and calculate the
resulting position.

Just an idea i have when reading this thread. :)


Neil Jerram wrote:
> Hi Charles,
> 2008/9/21 Charles Pax <charles.pax at>:
>> I'm considering the plausibility of a little hardware project that would
>> turn a Freerunner or any computer with an adequate sound card into a mimio
>> [1] device.
> [...]
>> Any input from the community?
> Assuming I've understood this even half-way correctly...
> It sounds like the accuracy of your triangulation will be limited by
> the small size of the FR; and when you add in the hardware and
> software path latency, I wonder if this will work accurately enough.
> (I'm assuming the marker would be a few metres away from the FR, is
> that right?)
> I think that points in a similar direction to Al's comment, i.e.
> moving some of the solution outside the FR, over USB.  That would
> allow you to have more distance between the inputs, and so get more
> accuracy.
> Regards,
>      Neil
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