Update app.py

app.py

@@ -16,7 +16,7 @@ def synthesize(key, sentence, speaker):
     response = requests.post('https://rjmopratfrdjgmfmaios.functions.supabase.co/rime-tts', headers=headers, json=json_data)
     audioContent = response.json()['audioContent']
     decode_string = base64.b64decode(audioContent)
-    with open('tmp.wav', 'w') as fp:
+    with open('tmp.wav', 'wb') as fp:
         fp.write(decode_string)
     return 'tmp.wav'