3 examples of 'speech_recognition' in Python

249
def recog(self, utterance_id):
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	context = rospy.get_param(self.node_name + '/speech_context', [])
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    path = self.utterance_file(utterance_id)
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    with io.open(path, 'rb') as audio_file:
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        content = audio_file.read()
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    audio = types.RecognitionAudio(content=content)
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    config = types.RecognitionConfig(
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        encoding=enums.RecognitionConfig.AudioEncoding.LINEAR16,
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        sample_rate_hertz=self.sample_rate,
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        language_code='en-US',
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        enable_automatic_punctuation=True)
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    # TODO: figure out what the difference is between async and sync recog and how to use them
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    if self.async:
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    	operation = self.speech_client.long_running_recognize(config, audio)
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    	op_result = operation.result()
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    	for result in op_result.results:
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    		for alternative in result.alternatives:
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    			print(alternative)
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    			return alternative.transcript, alternative.confidence
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    else:
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    	try:
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    		# print("hi")
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    		response = self.speech_client.recognize(config, audio)
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    		if response.results is not None:
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    			for result in response.results:
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    				# print(result)
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    				# print(u'Transcript: {}'.format(result.alternatives[0].transcript))
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    				# print(u'Confidence: {}'.format(result.alternatives[0].confidence))
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    				if result.alternatives[0].transcript is not None:
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    					print(result.alternatives[0])
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    					return result.alternatives[0].transcript, result.alternatives[0].confidence
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    				else:
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    					print("Try speaking again")
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    	except Exception as e:
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    		rospy.logerr("Some kind of error: {}".format(e))

26
def test_google_french(self):
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    r = sr.Recognizer()
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    with sr.AudioFile(self.AUDIO_FILE_FR) as source: audio = r.record(source)
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    self.assertEqual(r.recognize_google(audio, language="fr-FR"), u"et c'est la dictée numéro 1")

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def test_google_chinese(self):
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    r = sr.Recognizer()
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    with sr.AudioFile(self.AUDIO_FILE_ZH) as source: audio = r.record(source)
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    self.assertEqual(r.recognize_google(audio, language="zh-CN"), u"砸自己的脚")