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Microsoft Azure Speech InvalidVoiceSelection

The selected voice for speech synthesis is not available.

Understanding Microsoft Azure Speech Service

Microsoft Azure Speech is a powerful tool designed to convert text to speech, enabling developers to integrate natural-sounding voice capabilities into their applications. It supports a wide range of languages and voices, making it versatile for global applications. The service is part of the Azure Cognitive Services suite, which provides advanced AI capabilities for various use cases.

Identifying the Symptom: InvalidVoiceSelection

When using the Azure Speech service, you might encounter an error message indicating an InvalidVoiceSelection. This error typically occurs during the speech synthesis process when the system cannot find the specified voice.

Exploring the Issue: What Causes InvalidVoiceSelection?

The InvalidVoiceSelection error arises when the voice selected for speech synthesis is not available in the Azure Speech service. This could be due to selecting a voice that is not supported in the current region or a typo in the voice name.

Common Scenarios

  • Using a voice that is not supported in the specified region.
  • Incorrect voice name due to typographical errors.
  • Attempting to use a voice that has been deprecated or removed.

Steps to Resolve InvalidVoiceSelection

To resolve the InvalidVoiceSelection error, follow these steps:

Step 1: Verify Supported Voices

Ensure that the voice you are trying to use is supported by Azure Speech. You can find the list of supported voices in the Azure Speech Language Support documentation.

Step 2: Check the Region

Make sure the selected voice is available in your Azure region. Some voices may only be available in specific regions. You can verify this in the Azure Regions documentation.

Step 3: Correct the Voice Name

Double-check the spelling of the voice name in your code. Even a small typo can lead to the InvalidVoiceSelection error. Refer to the official list of voice names to ensure accuracy.

Step 4: Update Your Code

Once you have verified the correct voice name and region, update your code accordingly. Here is an example of how to specify a voice in your code:

speech_config = speechsdk.SpeechConfig(subscription="YourSubscriptionKey", region="YourRegion")
speech_config.speech_synthesis_voice_name = "en-US-JennyNeural"

Conclusion

By following these steps, you should be able to resolve the InvalidVoiceSelection error and successfully use the Microsoft Azure Speech service for your text-to-speech needs. For further assistance, refer to the Azure Speech Documentation.

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