FIG. 1 is a top, front perspective view of the audio mixer according to the present invention;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a top, plan view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a rear elevational view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines are used to show environmental structure only, and form no part of the claimed design.