Update app.py

app.py

@@ -23,13 +23,28 @@ model = SentenceTransformer('all-MiniLM-L6-v2')
 
 def record_audio(duration=5, sample_rate=16000):
     """
-    Record audio using sounddevice and return as NumPy array
+    Record audio using PyAudio and return as NumPy array
     """
+    p = pyaudio.PyAudio()
+    stream = p.open(format=pyaudio.paFloat32,
+                    channels=1,
+                    rate=sample_rate,
+                    input=True,
+                    frames_per_buffer=1024)
+    
     st.write("Recording...")
-    audio = sd.rec(int(duration * sample_rate), samplerate=sample_rate, channels=1, dtype='float32')
-    sd.wait()
+    frames = []
+    for _ in range(0, int(sample_rate / 1024 * duration)):
+        data = stream.read(1024)
+        frames.append(np.frombuffer(data, dtype=np.float32))
+    
+    stream.stop_stream()
+    stream.close()
+    p.terminate()
+    
     st.write("Recording finished.")
-    return audio.flatten(), sample_rate
+    audio_data = np.concatenate(frames)
+    return audio_data, sample_rate
     
 def numpy_to_audio_data(audio_data):
     """