IE-45 Noise Criteria (NC and NR)

After capturing your measurements into IE‑45 memory files, easily view them on your PC, and use the Ivie45 XLS software templates with your Microsoft Excel software to graph and print your data.




The power and breadth of features in the IE‑45 are evidenced in the Noise Criteria (NC) function of the IE‑35. By invoking NC, the user can see a set of NC contours overlaid on the display screen and observe the RTA octave bars in relation to the NC contours. In addition, a working real time calculation of the current NC value is provided in the SPL window on the RTA screen. The reference level of the RTA display is adjustable while making NC measurements.

Noise Reduction (NR) curves are also available as a menu selection.