diff --git a/siwatlib/debounce.py b/siwatlib/debounce.py
new file mode 100644
index 0000000..e614803
--- /dev/null
+++ b/siwatlib/debounce.py
@@ -0,0 +1,12 @@
+from time import perf_counter as seconds
+class debounce:
+    def __init__(self,state: bool, debounce_time: float) -> None:
+        self.last_pressed = seconds()
+        self.debounce_time = debounce_time
+        self.state = state
+    def set_state(self, state: bool) -> bool:
+        if seconds()-self.last_pressed > self.debounce_time:
+            self.state = state
+            return self.state
+        else:
+            return self.state
\ No newline at end of file
diff --git a/siwatlib/sound.py b/siwatlib/sound.py
new file mode 100644
index 0000000..71ae48a
--- /dev/null
+++ b/siwatlib/sound.py
@@ -0,0 +1,27 @@
+from pysine import pysine
+import winsound
+import threading
+
+MODE = 'pysine'
+
+global __beeper__
+
+def __beeper_therad__(frequency: float, duration: float):
+    if MODE == 'winsound':
+        winsound.Beep(frequency=int(frequency), duration=int(duration*1000))
+    elif MODE == 'pysine':
+        pysine.sine(frequency=frequency,duration=duration)
+
+__beeper__ = threading.Thread(target=__beeper_therad__,
+                     kwargs={'frequency': 0, 'duration': 0}
+                     )
+
+def beep(frequency: float, duration: float):
+    global __beeper__
+    if not __beeper__.is_alive():
+        __beeper__ = threading.Thread(target=__beeper_therad__,
+                     kwargs={'frequency': frequency, 'duration': duration}
+                     )
+        __beeper__.start()
+    
+