APx Sound Level Meter Utility (Version 6.0.0) is a tool from Audio Precision which is used along with APx500 series analyzer to perform click and pop measurement. This utility takes advantage of the file recording capability of the APx500 software. This method of click and pop measurement is preferred over any other discrete interval measurement methods because,in a discrete measurement method, even at a relatively fast measurement rate of 250 per second, a transient click or pop event can get missed between acquisitions. But in this method, by making a digital recording at a 48kHz sample rate, we can be sure that any audible transients can get captured.

APx Sound Level Meter Utility comes-up with an interface as shown in Figure 6-10. Click the Load Project button in the interface and select the AP project file path which was stored with all required configuration needed for the click and pop measurement.