Correct comments

AudioFilter90Deg_F32.h

@@ -36,7 +36,7 @@
  * is needed.
  *
  * No default Hilbert Transform is provided, as it is highly application dependent.
- * The number of coefficients is an odd number with a maximum of 250.  The Iowa
+ * The number of coefficients is an odd number with a maximum of 251.  The Iowa
  * Hills program can design a Hilbert Transform filter. Use begin(*pCoeff, nCoeff)
  * in the .INO to initialize this block.
  *
@@ -56,6 +56,8 @@
  *    251 tap Hilbert (including 0's) 646 microseconds
  *   Same 121 tap Hilbert on T4.0 is 57 microseconds per update()
  *   Same 251 tap Hilbert on T4.0 is 114 microseconds per update()
+ *
+ * Rev 7 Feb 23 - Corrected type cast and comments.  RSL
  */
 
 #ifndef _filter_90deg_f32_h
@@ -98,7 +100,7 @@ public:
 
         // For the equalizing delay in q, if n_coeffs==19, n_delay=9
         // Max of 251 coeffs needs a delay of 125 sample periods.
-        n_delay = (uint8_t)((n_coeffs-1)/2);
+        n_delay = (uint16_t)((n_coeffs-1)/2);
         in_index = n_delay;
         out_index = 0;
         for (uint16_t i=0;  i<256; i++){