try no reshape

app.py

@@ -11,7 +11,7 @@ token_str = os.environ['DG_TOKEN']
 def tts_fn(text, prompt_audio, prompt_seconds, inference_steps, inference_temperature, pitch_steps):
     texts = [text]
     sr = prompt_audio[0]
-    prompt_audio = np.reshape(prompt_audio[1], (1, -1)).astype(np.float32, order='C') / 32768.0
+    prompt_audio = prompt_audio[1].astype(np.float32, order='C') / 32768.0
     byte_io = io.BytesIO(bytes())
     wavfile.write(byte_io, sr, prompt_audio)
     prompt_audio_bytes = byte_io.read()