解决 SPXERR_MIC_NOT_AVAILABLE：对 Python 的 Azure 语音 SDK 麦克风错误进行故障排除

使用 Python 修复 Azure 语音 SDK 中的麦克风访问错误

解决方案 1：使用 Python 后端的 Visual Studio Code 权限

import os
import azure.cognitiveservices.speech as speechsdk
# Step 1: Set up Speech SDK credentials from environment variables
os.environ["SPEECH_KEY"] = "your_speech_key_here"
os.environ["SPEECH_REGION"] = "your_region_here"
SPEECH_KEY = os.getenv("SPEECH_KEY")
SPEECH_REGION = os.getenv("SPEECH_REGION")
# Step 2: Define function to recognize speech input
def recognize_from_microphone():
    # Set up SpeechConfig with provided credentials
    speech_config = speechsdk.SpeechConfig(subscription=SPEECH_KEY, region=SPEECH_REGION)
    speech_config.speech_recognition_language = "en-US"
    # Initialize audio configuration with default microphone access
    audio_config = speechsdk.audio.AudioConfig(use_default_microphone=True)
    speech_recognizer = speechsdk.SpeechRecognizer(speech_config=speech_config, audio_config=audio_config)
    # Begin listening and handle recognition result
    print("Please speak into the microphone.")
    result = speech_recognizer.recognize_once_async().get()
    # Check recognition result and print details
    if result.reason == speechsdk.ResultReason.RecognizedSpeech:
        print("Recognized: {}".format(result.text))
    elif result.reason == speechsdk.ResultReason.NoMatch:
        print("No speech could be recognized: {}".format(result.no_match_details))
    elif result.reason == speechsdk.ResultReason.Canceled:
        cancellation_details = 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("Make sure the microphone has permissions in VS Code.")
# Run function
recognize_from_microphone()

确保麦克风权限并处理 Python 语音 SDK 中的错误

解决方案2：添加显式权限和错误处理

import os
import azure.cognitiveservices.speech as speechsdk
import sys
# Set up environment and variables
os.environ["SPEECH_KEY"] = "your_speech_key_here"
os.environ["SPEECH_REGION"] = "your_region_here"
SPEECH_KEY = os.getenv("SPEECH_KEY")
SPEECH_REGION = os.getenv("SPEECH_REGION")
# Function to recognize speech
def recognize_from_microphone():
    try:
        speech_config = speechsdk.SpeechConfig(subscription=SPEECH_KEY, region=SPEECH_REGION)
        speech_config.speech_recognition_language = "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.")
        result = speech_recognizer.recognize_once_async().get()
        if result.reason == speechsdk.ResultReason.RecognizedSpeech:
            print("Recognized: {}".format(result.text))
        elif result.reason == speechsdk.ResultReason.NoMatch:
            print("No speech could be recognized.")
        elif result.reason == speechsdk.ResultReason.Canceled:
            details = result.cancellation_details
            print("Recognition canceled. Reason: {}".format(details.reason))
            if details.reason == speechsdk.CancellationReason.Error:
                print("Error: {}".format(details.error_details))
    except Exception as e:
        print("Error occurred:", e)
        sys.exit(1)
recognize_from_microphone()

不同环境中语音 SDK 设置的单元测试

解决方案 3：麦克风可用性的 Python 单元测试

import unittest
from azure.cognitiveservices.speech import SpeechConfig, SpeechRecognizer, ResultReason
import os
class TestMicrophoneAvailability(unittest.TestCase):
    def setUp(self):
        os.environ["SPEECH_KEY"] = "your_speech_key_here"
        os.environ["SPEECH_REGION"] = "your_region_here"
        self.speech_key = os.getenv("SPEECH_KEY")
        self.speech_region = os.getenv("SPEECH_REGION")
        self.speech_config = SpeechConfig(subscription=self.speech_key, region=self.speech_region)
        self.speech_config.speech_recognition_language = "en-US"
    def test_microphone_available(self):
        audio_config = speechsdk.audio.AudioConfig(use_default_microphone=True)
        recognizer = SpeechRecognizer(speech_config=self.speech_config, audio_config=audio_config)
        result = recognizer.recognize_once_async().get()
        self.assertNotEqual(result.reason, ResultReason.Canceled)
    def test_microphone_error_handling(self):
        audio_config = speechsdk.audio.AudioConfig(use_default_microphone=False)
        recognizer = SpeechRecognizer(speech_config=self.speech_config, audio_config=audio_config)
        result = recognizer.recognize_once_async().get()
        self.assertIn(result.reason, [ResultReason.Canceled, ResultReason.NoMatch])
if __name__ == '__main__':
    unittest.main()

1. 本文的内容引用了 Microsoft Learn 的 Azure 语音 SDK 快速入门指南，特别是关于设置 Python 以实现语音转文本功能。该指南提供了代码示例和设置说明。 Microsoft Learn：Azure 语音 SDK 快速入门
2. SPXERR_MIC_NOT_AVAILABLE 错误的其他故障排除详细信息源自开发人员论坛中记录的常见问题，突出显示了 VS Code 中的权限和麦克风配置挑战。 微软问答：开发者论坛