detach synthesized speech tensor to call numpy

app.py

@@ -31,7 +31,7 @@ def synthesise(text):
 def speech_to_speech_translation(audio):
     translated_text = translate(audio)
     synthesised_speech = synthesise(translated_text)
-    synthesised_speech = (synthesised_speech.numpy() * 32767).astype(np.int16)
+    synthesised_speech = (synthesised_speech.detach().numpy() * 32767).astype(np.int16)
     return 16000, synthesised_speech