The ornamental design for a white noisemachine, as shown and described.
FIG. 1 is a perspective view of a white noise machine showing my new design.
FIG. 2 is a front view of the white noise machine.
FIG. 3 is a rear view of the white noise machine.
FIG. 4 is a left side view of the white noise machine.
FIG. 5 is a right side view of the white noise machine.
FIG. 6 is a top view of the white noise machine; and,
FIG. 7 is a bottom view of the white noise machine.
Any shading and cross-hatching are not features of the design but are utilized to illustrate the surface contours of the white noise machine in the drawings.
The broken lines shown in the drawings depict portions of the white noise machine that form no part of the claimed design.