Subject:
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Nic_1
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Newsgroups:
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lugnet.robotics
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Date:
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Fri, 10 Feb 2006 11:16:23 GMT
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Viewed:
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1747 times
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If you want to see Nic_1, a sound following robot, go to
http://www.convict.lu/Jeunes/ultimate_stuff/Nic_1.htm
Nic_1 runs a program on the RCX that first samples two RCX sensor input ports at
36000 Hz (there is no mistake here !) to receive 300 samples from both
microphone channels. Then the program operates a fast and simplified
cross-correlation, yielding the phase-lag between both audio-signals. This value
is used to indicate the direction towards which Nic_1 is supposed to turn. The
program prunes erroneous values that might appear due to room reverberation. The
program was written with Ultimate ROBOLAB.
The video shows Nic_1 whilst tracking radio-music. It also could be a music
instrument or a human voice.
Enjoy.
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Message has 2 Replies:
 | | Re: Nic_1
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| (...) A robot that follows Kelly Clarkson around! Now that's the kind of computing that I can really get into. Thomas (19 years ago, 10-Feb-06, to lugnet.robotics)
| | | Re: Nic_1
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| (...) Hey that's pretty amazing for the standard RCX firmware. I guess calculation time doesn't really matter though. I'm a graduate EE taking estimation theory this semester so I'll keep this close to my heart. :-p I can't wait to try 2 mics on the (...) (19 years ago, 10-Feb-06, to lugnet.robotics)
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