EASE GLL Calculations

The excitation signal in EASE is band-limited pink noise, calculated as follows:

1. The AES2 standard signal is band-limited for the cut-off frequencies 88.4 Hz and 11.3 kHz (band limits for the one-third octaves 100 Hz and 10 kHz, respectively).
2. The maximum input voltage allowable for the system with this signal is checked. => MIV
3. This broadband signal level is then evenly distributed to all one-third octaves (pink spectrum). => Each band reduced by 13.22 dB (10 * log10(21)).

If you wish to compare the maximum SPL of a GLL between the GLL Viewer and EASE, please use the following settings in the GLL Viewer:
As EASE only evaluates and uses a frequency range from 88.4 Hz and 11.3 kHz (band limits for the one-third octaves 100 Hz and 10 kHz), please set those limits in the Calculation Parameters for the AES2 Band-Pass Input Signal.

e8f09553431a8955cdd1a889aeceeaa1.pngAfterwards the results of both programs are comparable.