from watson_developer_cloud import NaturalLanguageClassifierV1, SpeechToTextV1, TextToSpeechV1

# Speech to Text

speech_to_text = SpeechToTextV1(
	username="your username",
	password="your password")

input_audio_file = open("speech.wav", "rb")
response = speech_to_text.recognize(input_audio_file, content_type="audio/wav")
transcript = response["results"][0]["alternatives"][0]["transcript"]
print transcript

# Natural Language Classifier

natural_language_classifier = NaturalLanguageClassifierV1(
	username="your username",
	password="your password")

classifier_id = "your classifier ID"
response = natural_language_classifier.classify(classifier_id, transcript)
detected_class = response["top_class"]
print detected_class

# Text to Speech

text_to_speech = TextToSpeechV1(
	username="your username",
	password="your password")

output_audio_file = open("output.wav", "wb")
response_text = "I detected this class: " + detected_class
audio_data = text_to_speech.synthesize(response_text, accept="audio/wav")
output_audio_file.write(audio_data)
print response_text