Wind noise at high speed

Noise begins to hear at approximately 70 km / h, the maximum volume at 115km / h. Noise is tied to the sound of tires. But in view of the fact that the volume of the tire is the same for all the trucks, and the volume of different engines, had riveted three identical fashion with different volumes of wind and tire themselves. Accordingly modes include one that will not irritate their persistence (over volume) and to complement the overall sound picture.

For example:
– Events “wind vol.1” (quiet) I set up under the engine Scania’s V8;
– Events “wind vol.2” (moderate) under the Iveco Hi-Way;
– Events “wind vol.3” (loud) under the Volvo FH, DAF XF Euro6, Renault Magnum.
Volume was fitted only for these tractors, without sound mods to the engine.

Test 1.21.1