Automatic position calibration of multiple microphones

@article{Raykar2004AutomaticPC,
  title={Automatic position calibration of multiple microphones},
  author={Vikas C. Raykar and Ramani Duraiswami},
  journal={2004 IEEE International Conference on Acoustics, Speech, and Signal Processing},
  year={2004},
  volume={4},
  pages={iv-iv}
}
We describe a method to determine automatically the relative three dimensional positions of multiple microphones using at least five loudspeakers in unknown positions. The only assumption we make is that there is a microphone which is very close to a loudspeaker. In our experimental setup, we attach one microphone to each loudspeaker. We derive the maximum likelihood estimator and the solution turns out to be a non-linear least squares problem. A closed form solution which can be used as the… CONTINUE READING
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