Fixes for example script of effect_reverb_ext8.

third-party/effect_delay_ext8/examples/AudioDelay8M/AudioDelay8M.ino

@@ -43,14 +43,8 @@ void setup() {
 }
 
 void loop() {
-  static bool on_off;
-
-  if(on_off)
-    amp1.gain(0.0);
-  else
   amp1.gain(1.0);
- 
+  delay(200);
-  on_off=!on_off;
+  amp1.gain(0.0);
- 
+  delay(2000);
-  delay(1000);
 }