Abstract: The present invention provides a system and method for altering the audible sounds generated by a tire during operation by altering airflow through the tread. The tread includes tread blocks and the tread blocks include a plurality of tread block sides. Airflow through the tread blocks is altered by notches placed in the tread block sides. In an embodiment, at least one tread block side includes a notch. The notch serves to alter airflow through the tread of the tire and alter the audible sounds of the tire.