Fix socket read stream crashes and NameError on boot

voice_assistant.py

@@ -10,7 +10,9 @@ import wave
 import time
 
 # Default ESP32 IP
-ESP32_IP = "192.168.68.122"
+ESP32_IP = "192.168.68.124"
+if len(sys.argv) > 1:
+    ESP32_IP = sys.argv[1]
 PORT = 80
 URL = f"http://{ESP32_IP}:{PORT}/api/mcp"
 
@@ -268,7 +270,7 @@ def main():
 
     while True:
         print("\nReady for command. Choose an option:")
-        print(" [Enter] Record a voice command (4 seconds) on the board")
+        print(" [Enter] Record a voice command (10 seconds) on the board")
         print(" [t]     Type a text command manually")
         print(" [q]     Quit")
         
@@ -284,7 +286,7 @@ def main():
                 continue
         else:
             # Voice recording path
-            duration = 4
+            duration = 10
             pcm_filename = "recording.pcm"
             wav_filename = "temp_recording.wav"