Update app.py

app.py

@@ -312,7 +312,7 @@ def inference(url):
 	audio = glob2.glob('audio.*')[0]
 	with open(audio, 'rb') as fd:
 		contents = fd.read()
-	audio = callbak_audio(contents,sample_rate=16000)
+	audio = upload_audio(contents,sample_rate=16000)
 	est_ns = inference_model(audio)
 	note_seq.sequence_proto_to_midi_file(est_ns, './transcribed.mid')
 	return './transcribed.mid'