| 摘要 |
An autocalibration system includes two loudspeakers (2, 4) spaced from three microphones (16, 18, 20). Acoustic transient pulses are emitted by each loudspeaker (2, 4) in turn and from the reception of of these pulses by each of the microphones (16, 18, 20), the time-of-flight for each pulse to each microphone may be derived. From these time-of-flight measurements are also derived the distance and angular displacement of each microphone (16, 18, 20) from a reference point (12) flanked by the loudspeakers (2, 4). <IMAGE> |
