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Set the language Tella transcribes your new videos in under Settings → Language. The default, Auto, detects the spoken language; the same page has a dictionary for names and terms Tella would otherwise misspell. To open it, click your workspace name in the top left of the sidebar, go to Settings, then Language under Account.

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Transcription language

Transcription language chooses the language used for your videos’ subtitles. Leave it on Auto to detect the language automatically, or pick the language you actually speak in, not the language you want subtitles translated into. This is your personal default and applies to videos you record from now on. It does not re-transcribe videos you have already recorded.
Already recorded a video in the wrong language? You do not need to record it again. Re-transcribe it from the editor and pick the correct language there.

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Transcription dictionary

The dictionary teaches transcription the words it cannot guess: people’s names, your product and company names, and technical jargon. Add each term using the exact spelling and capitalization you want to see in the transcript. Do not add ordinary everyday words: the model already knows those, and padding the dictionary makes it less accurate, not more.
The transcription dictionary is available in English, Spanish, Portuguese, French, German, and Italian.
For how the dictionary behaves and when to use it, see create your custom transcript dictionary.
Last modified on September 28, 2026