Position and multiple microphones

phyphox Sonar: reflected signal on a distance scaleThe echo peak is mapped to distance in centimeters
phyphoxphyphox Sonar: reflected signal on a distance scale
  1. The echo peak is mapped to distance in centimeters
© RWTH Aachen University / phyphox · Source ↗

Acoustic signals can help locate a source or obstacle. Phone movement and additional channels can expand the observations.

Design tips

  • A single stationary microphone without a model does not reliably provide a full 3D direction.

Examples