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Speechmatics Unsupported Language error when using Speechmatics API

Request made for a language not supported by the API.

Understanding Speechmatics API

Speechmatics is a leading Voice AI API company that provides automatic speech recognition (ASR) services. It allows developers to integrate voice-to-text capabilities into their applications, supporting a wide range of languages and dialects. The tool is designed to handle various audio formats and deliver highly accurate transcriptions, making it a popular choice for developers looking to enhance their applications with voice recognition features.

Identifying the Unsupported Language Symptom

When using the Speechmatics API, you might encounter an error indicating an unsupported language. This typically manifests as an error message or code returned by the API when a request is made for a language that is not supported. This can halt the transcription process and prevent the application from functioning as intended.

Common Error Messages

Some common error messages associated with this issue include:

  • 400 Bad Request: Unsupported Language
  • Error: Language not recognized

Explaining the Unsupported Language Issue

The unsupported language issue arises when a request is made to the Speechmatics API for a language that is not included in their list of supported languages. This can happen if the language code is incorrect or if the language itself is not available in the API's offerings. The Speechmatics API requires that requests specify a valid language code to process audio files correctly.

Root Cause Analysis

The root cause of this issue is often a mismatch between the requested language and the languages supported by the API. Developers may inadvertently use an incorrect language code or assume support for a language that is not yet available.

Steps to Resolve the Unsupported Language Issue

To resolve this issue, follow these actionable steps:

Step 1: Verify Supported Languages

First, check the Speechmatics Supported Languages page to ensure that the language you are trying to use is supported. This page provides an up-to-date list of all languages and dialects available through the API.

Step 2: Correct the Language Code

Ensure that the language code in your API request matches one of the supported language codes. For example, if you are trying to transcribe English audio, use the correct code such as en for English.

Step 3: Update Your API Request

Modify your API request to include the correct language code. Here is an example of how to structure your request:

{
"config": {
"language": "en"
},
"audio": {
"url": "https://example.com/audiofile.mp3"
}
}

Step 4: Test the Request

After updating the language code, test your API request to ensure that it is processed successfully. If the issue persists, double-check the language code and consult the Speechmatics Documentation for further guidance.

Conclusion

By following these steps, you should be able to resolve the unsupported language issue when using the Speechmatics API. Always ensure that you are using the correct language codes and refer to the official documentation for the most accurate and up-to-date information.

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