The ornamental design for a microphonecontroller, as shown and described.
FIG. 1 is a perspective view of the front, top and right side of a microphone controller showing our new design;
FIG. 2 is a front view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a right side view thereof, the left side view is a mirror image of the right side view;
FIG. 5 is a top plan view thereof;
FIG. 6 is a bottom view thereof; and,
FIG. 7 is a perspective view thereof, shown in an environment of use.
The broken lines shown in FIGS. 1-6 illustrate portions of the microphone controller that form no part of the claimed design. The broken lines illustrating the extra base in FIG. 7 are environment that form no part of the claimed design, while the remaining broken lines in FIG. 7 illustrate portions of the microphone controller that form no part of the claimed design.