3 ms·
I can't find any reference to multiple microphones or phase shift analysis in the source material. This paragraph from the source material, specifically, leads
by bradleyland 15y ago
I can't find any reference to multiple microphones or phase shift analysis in the source material. This paragraph from the source material, specifically, leads me to believe it's using the acoustics of the touch, not the location:
> Through gesture recognition techniques we detect different kind of fingers-touch and associate them with different sounds.
Notice the language "different kind of", rather than "the location of". I just don't see anything here that would indicate spacial information is gathered.
- mojuba 15y agoThat's understood, I'm just asking why not doing phase shift analysis with multiple microhpones, as another idea.
- bradleyland 15y agoYou could probably do something like this, but accuracy is going to be a problem. Sound waves are not uniform events. If you could rely on precise clicks at precise frequencies, with minimal echo, you could get acceptable accuracy, but relying on finger thumps in varied substrate is going to be difficult. I think the reason you don't see more of this is that there are better solutions to the problem of establishing touch interfaces on suitable surfaces.