Does Azure Fast Transcription support auto language detection for single-language audio files (like Hindi or English) without needing the Continuous LID add-on, and is there any extra cost for using this feature? Also, please share the supported languages

Question

We are planning to use the Fast Transcription API in Azure Speech Service to transcribe audio files where each file contains only one spoken language, such as Hindi or English (India/US).

We have the following questions:

Does Fast Transcription support automatic language identification (at-start LID) for single-language audio files without requiring the Continuous Language Identification add-on?

Is there any additional cost involved in using this language identification feature for single-language detection within Fast Transcription?

Can you provide an official list of all supported languages/locales for the language identification feature specifically in Fast Transcription?

Thank you!

Answer 1

Hello @Vaibhav Dewangan,

Does Fast Transcription support automatic language identification (at-start LID) for single-language audio files without requiring the Continuous Language Identification add-on?

Azure Fast Transcription does not support automatic language identification (at-start LID) for single-language audio files without requiring the Continuous Language Identification add-on. This feature allows the service to detect the spoken language at the beginning of the audio, enabling seamless transcription without prior knowledge of the language. It is particularly useful when working with audio files that contain only one language, such as Hindi or English. To utilize this functionality, you can enable language identification by configuring the languageIdentification parameter in your transcription request.

Is there any additional cost involved in using this language identification feature for single-language detection within Fast Transcription?

Regarding additional costs, Using the at-start language identification feature with Azure Fast Transcription does not incur any additional charges beyond the standard pricing for the service. While the context does not specify extra costs associated with this feature, please review the latest pricing details on the Azure AI Speech pricing page to ensure there have been no recent changes.

Can you provide an official list of all supported languages/locales for the language identification feature specifically in Fast Transcription? Here are the supported languages:

de-DE	German (Germany)	Yes	Audio + human-labeled transcript Plain text Structured text Output format Pronunciation Phrase list
en-GB	English (United Kingdom)	Yes	Audio + human-labeled transcript Audio Plain text Structured text Output format Pronunciation Phrase list
en-IN	English (India)	Yes	Audio + human-labeled transcript Plain text Structured text Output format Pronunciation Phrase list
en-US	English (United States)	Yes	Audio + human-labeled transcript Audio Plain text Structured text Output format Pronunciation Phrase list
es-ES	Spanish (Spain)	Yes	Audio + human-labeled transcript Plain text Structured text Output format Pronunciation Phrase list
es-MX	Spanish (Mexico)	Yes	Audio + human-labeled transcript Plain text Structured text Output format Pronunciation Phrase list
fr-FR	French (France)	Yes	Audio + human-labeled transcript Plain text Structured text Output format Pronunciation Phrase list
hi-IN	Hindi (India)	Yes	Audio + human-labeled transcript Plain text Structured text Output format Phrase list
it-IT	Italian (Italy)	Yes	Audio + human-labeled transcript Plain text Structured text Output format Pronunciation Phrase list
ja-JP	Japanese (Japan)	Yes	Audio + human-labeled transcript Plain text Structured text Output format Phrase list
ko-KR	Korean (Korea)	Yes	Audio + human-labeled transcript Plain text Structured text Output format Phrase list
pt-BR	Portuguese (Brazil)	Yes	Audio + human-labeled transcript Plain text Structured text Output format Pronunciation Phrase list
zh-CN	Chinese (Mandarin, Simplified)	Yes

Kindly refer the link Supported languages.

I Hope this helps. Do let me know if you have any further queries.

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