An Automatic Highway Noise Monitor
The development of a unique system for the automatic detection and identification of noisy vehicles is described. The instrument produces a continuous chart record of the A-weighted sound level at the monitoring location. Vehicles whose sound level exceeds a pre-set limit are automatically photographed by a split image camera which simultaneously records the relevant portion of the chart record. The optimum moment for photography of the vehicle is determined by a novel array utilizing cross correlation techniques.
Click to purchase paper as a non-member or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!
This paper costs $33 for non-members and is temporarily free for AES members.