Update app.py

app.py

@@ -61,12 +61,14 @@ def merge_audio(audio_path_1, audio_path_2):
     merged_signal = []
     sr_1, signal_1 = wavfile.read(audio_path_1)
     sr_2, signal_2 = wavfile.read(audio_path_2)
+    if sr_1 != sr_2:
+        signal_2 = librosa.resample(signal_2, sr_2, sr_1)
     merged_signal.append(signal_1)
     merged_signal.append(signal_2)
     merged_signal = np.hstack(merged_signal)
     merged_signal = np.asarray(merged_signal, dtype=np.int16)
     audio_filename = os.path.join('audio', str(uuid.uuid4())[0:8] + ".wav")
-    wavfile.write(audio_filename, sr_2, merged_signal)
+    wavfile.write(audio_filename, sr_1, merged_signal)
     return audio_filename
 
 class ConversationBot: