speech_to_text = SpeechToTextV1(
		iam_apikey=sst_api_key,
		url=sst_url
	)

	class MyRecognizeCallback(RecognizeCallback):
		def __init__(self):
			RecognizeCallback.__init__(self)

		def on_data(self, data):
			print(json.dumps(data, indent=2))

		def on_error(self, error):
			print('Error received: {}'.format(error))

		def on_inactivity_timeout(self, error):
			print('Inactivity timeout: {}'.format(error))

	myRecognizeCallback = MyRecognizeCallback()

	with open(join(dirname(__file__), './.', 'encounter1.wav'), 'rb') as audio_file:
		audio_source = AudioSource(audio_file)
		speech_to_text.recognize_using_websocket(
        audio=audio_source,
        content_type='audio/wav',
        recognize_callback=myRecognizeCallback,
        keywords=['ticket'],
        keywords_threshold=0.8)