* so we can multiply by an amplitude in the range 0..100 to get a
* signed short value to put in the output buffer.
*/
-static short beep_wform[256] = {
+static const short beep_wform[256] = {
0, 40, 79, 117, 153, 187, 218, 245,
269, 288, 304, 316, 323, 327, 327, 324,
318, 310, 299, 288, 275, 262, 249, 236,