Update app.py

app.py

@@ -6,15 +6,18 @@ from io import BytesIO
 from gtts import gTTS
 from streamlit_webrtc import webrtc_streamer, WebRtcMode
 import speech_recognition as sr
+import sounddevice as sd  
 
 client = InferenceClient("mistralai/Mixtral-8x7B-Instruct-v0.1")
 pre_prompt = ""
 pre_prompt_sent = False
+webrtc_ctx = None 
 
 def take_user_input():
     r = sr.Recognizer()
 
     def audio_callback(in_data, frame_count, time_info, status):
+        global webrtc_ctx 
         audio = sr.AudioData(
             in_data.tobytes(),
             sample_rate=webrtc_ctx.audio_sample_rate,
@@ -29,6 +32,7 @@ def take_user_input():
             exit()
         return query
 
+    global webrtc_ctx 
     webrtc_ctx = webrtc_streamer(
         key="microphone",
         mode=WebRtcMode.SENDRECV,
@@ -56,12 +60,12 @@ def take_user_input():
                     st.info('Reconociendo...')
 
                     query = transcribe_speech(audio)
-                    
+
                     if 'salir' in query or 'detener' in query:
                         speak("Hasta luego.")
                         exit()
                     return query
-                    
+
     except sr.UnknownValueError:
         speak('No se ha reconocido nada. Intenta de nuevo...')
     except sr.RequestError as e: