A sound perception issue with this video ?
To ram that poor Wimpy, this Bf109 starts an boom 'n' zoom attack with a flips over, manoeuvring at a speed of 350 km/h, pulling from the dive, 1000m lower with ~600 km/h showing on the air speed indicator...
... and there is absolutely no changes of frequency, amplitude, intensity of the aerodynamic sound !
Notice on this video (p-51), as the speed decreases, how the aerodynamic sound vanishes to let the engine sound roar into the cockpit at the end of this short climb .
...