diff --git a/aucat/midi.c b/aucat/midi.c
index 425856a..2a0c089 100644
--- a/aucat/midi.c
+++ b/aucat/midi.c
@@ -75,7 +75,7 @@ unsigned int common_len[] = { 0, 2, 3, 2, 0, 0, 1, 1 };
 /*
  * call-back invoked periodically to implement throttling; at each invocation
  * gain more ``tickets'' for processing.  If one of the buffer was blocked by
- * the throttelling mechanism, then run it
+ * the throttling mechanism, then run it
  */
 void
 midi_cb(void *addr)
@@ -367,8 +367,8 @@ midi_copy_dump(struct aproc *p, struct abuf *obuf)
 }
 
 /*
- * notifty the mixer that volume changed, called by whom allocad the slot using
- * ctl_slotnew(). Note: it doesn't make sens to call this from within the
+ * notifty the mixer that volume changed, called by whom allocated the slot using
+ * ctl_slotnew(). Note: it doesn't make sense to call this from within the
  * call-back.
  */
 void
@@ -605,7 +605,7 @@ midi_in(struct aproc *p, struct abuf *ibuf)
 	/*
 	 * XXX: if the sysex is received byte by byte, partial messages
 	 * won't be sent until the end byte is received. On the other
-	 * hand we can't flush it here, since we would loose messages
+	 * hand we can't flush it here, since we would lose messages
 	 * we parse
 	 */
 	abuf_rdiscard(ibuf, icount);