Update app.py

app.py

@@ -12,8 +12,7 @@ def tts_fn(text, prompt_audio, prompt_seconds, inference_steps, inference_temper
     texts = [text]
     sr = prompt_audio[0]
     prompt_audio = np.reshape(prompt_audio[1], (1, -1)).astype(np.float32, order='C') / 32768.0
-    audio_bytes = bytes()
-    byte_io = io.BytesIO(audio_bytes)
+    byte_io = io.BytesIO(bytes())
     wavfile.write(byte_io, sr, prompt_audio)
     prompt_audio_bytes = byte_io.read()
     prompt_audio = [base64.b64encode(prompt_audio_bytes).decode('utf-8')]