Extremely Stupid Sound Level Question

[tolgaocal80]

I've done some searching and cannot find the answer to my question.

Basically, I want to use the masked track in the room I spend most time in during the day. 

I use a sound level where I can hear the trickling or ocean tracks from afar clearly. I then switch to US at the exact same sound level. Frequensee is picking up that the ~20 khz range is working correctly as well. 

With this configuration the sub should be working correctly at US (masked), correct?

if you want to use masked (ocean or trickling) and if you can clearly hear the lowest sound in ocean surf from all areas in the room than you can use that volume to listen all tracks. (ultrasonic(US), ocean, trickling doesn't matter).

With this configuration the sub should be working correctly at US (masked), correct?

it should be work fine with US(Ultrasonic) or masked(ocean or trickling) as I know.

btw not a stupid question, sometimes this question makes me mad , i want to be sure it is working fine and recheck it.