I am pretty sure that smoothing/averaging setting only affects the display, not the measurements.I have been using 1/48 smoothing filter in my Preferences. Should I use another smoothing filter like 1/6 instead ? What is the impact on using 1/6 vs 1/48 besides smoothing out the measured curve ? Tks
Zheka has it right: No smoothing for low-freq graphs, 1/6 or 1/3 for full range. Due to comb filtering caused by reflections, most rooms deliver a “ragged” graph for the upper frequencies. Smoothing allows you to see the underlying trend in frequency response.I think the rule of thumb is to use very little or no smoothing for the low frequency graphs and heavier (1/6 or even 1/3) smoothing for full range graphs.
Ethan Winer of Real Traps recommends setting smoothing at 1/24 for LF and 1/3 for MF and HF range graphs