300 blackout SUPPRESSED! Subsonic vs Supersonic

You can hear very similar noises in the Butler rally. A trick you might not have noticed in Paramount's sound/flash test
https://rumble.com/v5b10z1-paramount-shoots-subsonic-.223-through-suppressor-from-windowtakes-decibel-.html

Is he used supersonic round to show how impossible the flash is in the daytime. However, this is a LOUDER round, as you can see here, which has the opposite effect on silenced shot audio, and leads one to think suppressed fire would be much louder than it is, and much different than Clay Martin and Cullen describe, and is heard in Dave's footage. False!