Fix some spelling mistakes.

plug-ins/limiter.ny

@@ -71,7 +71,7 @@ $control makeup (_ "Apply Make-up Gain") choice (
 (defun get-env (sig step lookahead limit)
   (let* ((sig (mult (/ limit) sig))
          (pad-time (* 3 lookahead))       ; padding required at start (seconds)
-         (pad-s (* 3 step))               ; padding smaples
+         (pad-s (* 3 step))               ; padding samples
          (padding (snd-const (peak sig pad-s) 0 *sound-srate* pad-time))
          (peak-env (snd-avg sig (* 4 step) step OP-PEAK)))
     (extract 0 1

plug-ins/spectral-delete.ny

@@ -65,7 +65,7 @@ $copyright (_ "Released under terms of the GNU General Public License version 2"
 (defmacro validate-low-hz (hz fmin fmax)
   ;; Discard if out of valid range.
   ;; Do NOT coerce into range if too high - if multiple tracks with
-  ;; different sample rates, that could cause very unepected results.
+  ;; different sample rates, that could cause very unexpected results.
   `(if (or (not ,hz) (< ,hz fmin) (> ,hz fmax))
        (setf ,hz nil)))
 

plug-ins/vocalrediso.ny

@@ -274,7 +274,7 @@ $control high-transition (_ "High Cut for Vocals (Hz)") real "" 9000 1 24000
 
 *track* ;Return original audio if something goes wrong
 
-;;;  we start with some variable assignements
+;;;  we start with some variable assignments
 (setf *sr* *sound-srate*)
 
 ;; hard coded STFT parameters

plug-ins/vocoder.ny

@@ -66,7 +66,7 @@ $control radar-f (_ "Frequency of Radar Needles (Hz)") real "" 30 1 100
 (setf *radar-table* (list *radar-table* (hz-to-step radar-f) T))
 
 ;; increase the volume of the audacity track in the middle of the slider
-;; the sqrt trick is something like an artifical db scaling
+;; the sqrt trick is something like an artificial db scaling
 (setf track-vol (sqrt (/ track-vl 100.0)))
 ;; decrease the volume of the white noise in the middle of the slider
 ;; the expt trick is an inverse db scaling