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AWS Transcribe UnsupportedLanguageException

The specified language is not supported by AWS Transcribe.

Understanding AWS Transcribe

AWS Transcribe is a powerful tool provided by Amazon Web Services that converts audio speech into text. It is widely used in applications that require voice recognition and transcription services, such as customer service call centers, media content analysis, and more. AWS Transcribe supports a variety of languages and offers features like real-time transcription, custom vocabulary, and speaker identification.

Recognizing the Symptom

When using AWS Transcribe, you might encounter an error message stating UnsupportedLanguageException. This error typically occurs when you attempt to transcribe audio in a language that is not supported by AWS Transcribe.

What You Observe

The application may fail to process the transcription request, and you will receive an error message indicating that the language specified is unsupported. This can halt the transcription process and affect the functionality of your application.

Details About the Issue

The UnsupportedLanguageException is an error code that indicates the language you have specified in your transcription request is not among the languages supported by AWS Transcribe. AWS Transcribe has a predefined list of languages it can process, and any language outside this list will trigger this exception.

Understanding the Error Code

This error is a direct result of specifying a language code that AWS Transcribe does not recognize. For example, if you attempt to transcribe audio in a regional dialect or a newly introduced language that AWS has not yet added to its supported list, this error will occur.

Steps to Fix the Issue

To resolve the UnsupportedLanguageException, follow these steps:

Step 1: Verify Supported Languages

First, check the list of languages supported by AWS Transcribe. You can find the most up-to-date list on the AWS Transcribe Documentation page. Ensure that the language you intend to use is listed.

Step 2: Modify Your Request

If the language you are trying to use is not supported, you will need to modify your transcription request to use a supported language. Update the language code in your request to match one from the supported list.

{
"LanguageCode": "en-US", // Example of a supported language code
"Media": {
"MediaFileUri": "s3://your-bucket/your-audio-file.mp3"
}
}

Step 3: Test Your Application

After making the necessary changes, test your application to ensure that the transcription request is processed successfully without encountering the UnsupportedLanguageException.

Conclusion

By ensuring that you are using a supported language, you can avoid the UnsupportedLanguageException and ensure smooth operation of your application. For further assistance, refer to the AWS Support page or consult the AWS Developer Forums for community help.

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