Update app.py

app.py

@@ -42,7 +42,7 @@ def speech_to_speech_translation(audio):
     synthesised_speech = synthesise(translated_text)
     synthesised_speech = (
         synthesised_speech.numpy() * 32767).astype(np.int16)
-    return [16000, synthesised_speech]
+    return (16000, synthesised_speech)
 
 def predict(transType, language, audio, audio_mic = None):
         print("debug1:", audio,"debug2", audio_mic)