Implement Noisegate function to start and stop playing the audio stream

NoiseGate.py

@@ -0,0 +1,43 @@
+import time
+
+import numpy as np
+import discord
+import sounddevice as sd
+from threading import Thread, Event
+
+noise_gate_trigger = 0 # Set this value for the trigger on the noise-gate
+voice_connection = None
+audio_stream = None
+
+class NoiseGate(Thread):
+    def __init__(self, trigger_value: int = 1000):
+        global noise_gate_trigger
+        super(NoiseGate, self).__init__()
+        self.stream = None
+
+        noise_gate_trigger = trigger_value
+
+    def init_stream(self, num, _voice_connection, _audio_stream):
+        global voice_connection, audio_stream
+        self.stream = sd.InputStream(device=num, callback=stream_callback)
+        voice_connection = _voice_connection
+        audio_stream = _audio_stream
+
+    def run(self) -> None:
+        self.stream.start()
+
+
+def stream_callback(indata, *args):
+    volume_normalization = np.linalg.norm(indata) * 10
+    if int(volume_normalization) >= noise_gate_trigger:
+        # Triggered noise-gate
+        if not voice_connection.is_playing():
+            voice_connection.play(discord.PCMAudio(audio_stream))
+            #print("|" * int(volume_normalization / 4))
+            print("Noise Gate was Triggered")
+            time.sleep(10)
+    else:
+        if voice_connection.is_playing():
+            print("Noise Gate stopped")
+            voice_connection.stop()
+            # try disconnecting and reconnecting