diff --git a/TTS/azuretts.py b/TTS/azuretts.py
index f158d92..5674513 100644
--- a/TTS/azuretts.py
+++ b/TTS/azuretts.py
@@ -1,14 +1,11 @@
-import os
-import io
 import random
-from pydub import AudioSegment
-from pydub.playback import play
 import azure.cognitiveservices.speech as speechsdk
 from utils import settings
 
 
 class AzureTTS:
     def __init__(self):
+        # Initialize the AzureTTS class with necessary configurations
         self.voices = []
         self.api_key = settings.config["settings"]["tts"]["azure_api_key"]
         self.region = settings.config["settings"]["tts"]["azure_region"]
@@ -16,31 +13,36 @@ class AzureTTS:
         self.rate = settings.config["settings"]["tts"]["azure_voice_speed_boost"]
 
     def run(self, text: str, filepath: str, random_voice=False):
+        # Validate API key and region
         if not self.api_key or not self.region:
             raise ValueError("Azure API key and region must be set in settings.")
 
+        # Validate the rate value
         if not isinstance(self.rate, int) or not (0 <= self.rate <= 100):
             raise ValueError(
                 "azure_voice_speed_boost must be an integer between 0 and 100."
             )
 
+        # Configure speech synthesis with Azure
         speech_config = speechsdk.SpeechConfig(
             subscription=self.api_key, region=self.region
         )
         audio_config = speechsdk.audio.AudioOutputConfig(filename=filepath)
 
+        # Select voice: random or default
         if random_voice:
             voice_name = self.random_voice()
         else:
             voice_name = self.default_voice
 
+        # Set the voice name in the speech configuration
         speech_config.speech_synthesis_voice_name = voice_name
         speech_synthesizer = speechsdk.SpeechSynthesizer(
             speech_config=speech_config, audio_config=audio_config
         )
         rate_with_percent = f"{self.rate}%"
 
-        # Construct SSML with the specified rate
+        # Construct SSML (Speech Synthesis Markup Language) with the specified rate
         ssml_text = f"""
         <speak version="1.0" xmlns="http://www.w3.org/2001/10/synthesis" xml:lang="en-US">
             <voice name="{voice_name}">
@@ -48,19 +50,23 @@ class AzureTTS:
             </voice>
         </speak>
         """
+        # Perform speech synthesis
         result = speech_synthesizer.speak_ssml_async(ssml_text).get()
 
+        # Check the result of the synthesis
         if result.reason == speechsdk.ResultReason.SynthesizingAudioCompleted:
             print(f"Speech synthesized for text [{text}] and saved to [{filepath}]")
         else:
             print(f"Speech synthesis failed: {result.reason}")
 
     def random_voice(self):
+        # Return a random voice from the available voices
         if not self.voices:
             self.voices = self.fetch_available_voices()
         return random.choice(self.voices)
 
     def fetch_available_voices(self):
+        # Return a list of available voices
         return [
             "en-US-AndrewMultilingualNeural",
             "en-US-AvaMultilingualNeural",
@@ -74,4 +80,4 @@ class AzureTTS:
             "zh-CN-XiaochenMultilingualNeural",
             "zh-CN-XiaoyuMultilingualNeural",
             "zh-CN-YunyiMultilingualNeural",
-        ]
+        ]
\ No newline at end of file
diff --git a/requirements.txt b/requirements.txt
index 95fa560..a5a5987 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -22,3 +22,4 @@ ffmpeg-python==0.2.0
 elevenlabs==1.8.1
 yt-dlp==2024.10.7
 numpy==1.26.4
+azure-cognitiveservices-speech==1.41.1
\ No newline at end of file