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AWS Transcribe InvalidVocabularyName error when using AWS Transcribe.

The specified vocabulary name is invalid or does not exist.

Understanding AWS Transcribe

AWS Transcribe is a powerful service offered by Amazon Web Services that converts speech into text. It is widely used in applications that require voice recognition and transcription capabilities, such as customer service, content creation, and accessibility tools. AWS Transcribe supports a variety of languages and offers features like custom vocabularies and speaker identification.

Identifying the Symptom

When using AWS Transcribe, you might encounter an error message stating InvalidVocabularyName. This error typically occurs during the transcription job setup or execution phase, indicating an issue with the vocabulary name specified in your request.

Exploring the Issue

The InvalidVocabularyName error suggests that the vocabulary name provided in your AWS Transcribe request is either incorrect or does not exist in your AWS account. This can happen if there is a typo in the vocabulary name, or if the vocabulary has been deleted or not yet created.

Common Causes

  • Typographical errors in the vocabulary name.
  • The vocabulary has not been created in the AWS account.
  • The vocabulary was deleted or renamed.

Steps to Fix the Issue

To resolve the InvalidVocabularyName error, follow these steps:

Step 1: Verify Vocabulary Name

Ensure that the vocabulary name specified in your request matches exactly with the name of the vocabulary in your AWS account. Vocabulary names are case-sensitive and must be spelled correctly.

Step 2: Check Vocabulary Existence

Log in to the AWS Management Console and navigate to the AWS Transcribe service. Under the 'Custom Vocabularies' section, verify that the vocabulary exists and is correctly named.

Step 3: Create or Update Vocabulary

If the vocabulary does not exist, you will need to create it. Use the AWS CLI or SDKs to create a new vocabulary:

aws transcribe create-vocabulary --vocabulary-name "YourVocabularyName" --language-code "en-US" --phrases "phrase1,phrase2"

Refer to the AWS Transcribe Documentation for more details on creating vocabularies.

Step 4: Update Your Request

Once the vocabulary is verified or created, update your transcription job request to include the correct vocabulary name. Ensure that your application code or script references the correct vocabulary name.

Conclusion

By following these steps, you should be able to resolve the InvalidVocabularyName error in AWS Transcribe. Always double-check the vocabulary names and ensure they exist in your AWS account before initiating transcription jobs. For further assistance, consult the AWS Support or the AWS Forums.

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