用azure识别语音

from azure.cognitiveservices.speech import AudioDataStream, SpeechConfig, SpeechSynthesizer, SpeechSynthesisOutputFormat
from azure.cognitiveservices.speech.audio import AudioOutputConfig
import azure.cognitiveservices.speech as speechsdk
speech_key, service_region = "xxxxxxxxxxxxxxxxxxxxxxxxxxxx", "bbbbbbbbbbbbbbbbbbb"
speech_config = speechsdk.SpeechConfig(subscription=speech_key, region=service_region)
audio_config = AudioOutputConfig(use_default_speaker=True)
speech_synthesizer = SpeechSynthesizer(speech_config=speech_config, audio_config=audio_config)
def recognize_from_microphone():
    speech_config.speech_recognition_language="zh-cn" #zh-cn#en-US
    audio_config = speechsdk.audio.AudioConfig(use_default_microphone=True)
    speech_recognizer = speechsdk.SpeechRecognizer(speech_config=speech_config, audio_config=audio_config)
    print("Speak into your microphone.")
    speech_recognition_result = speech_recognizer.recognize_once_async().get()
    if speech_recognition_result.reason == speechsdk.ResultReason.RecognizedSpeech:
        print("Recognized: {}".format(speech_recognition_result.text))
    elif speech_recognition_result.reason == speechsdk.ResultReason.NoMatch:
        print("No speech could be recognized: {}".format(speech_recognition_result.no_match_details))
    elif speech_recognition_result.reason == speechsdk.ResultReason.Canceled:
        cancellation_details = speech_recognition_result.cancellation_details
        print("Speech Recognition canceled: {}".format(cancellation_details.reason))
        if cancellation_details.reason == speechsdk.CancellationReason.Error:
            print("Error details: {}".format(cancellation_details.error_details))
            print("Did you set the speech resource key and region values?")

recognize_from_microphone()