# My audio was not transcribed

Transcription starts on its own once an upload completes, so no transcript usually means the upload did not finish. Check the file is a supported audio format — MP3, WAV, M4A, AAC, OGG or FLAC — and upload it again.

Long files take longer than you might expect. Give it a minute before assuming it has failed.

If the language was detected wrong, you do not need to re-upload — pin the language on the file and transcribe again. It costs nothing.

## Related

- [How do I get my audio into Cast?](https://mubert.com/tools/cast/docs/import-audio)
- [Which languages can Cast transcribe?](https://mubert.com/tools/cast/docs/transcription-languages)

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Source: https://mubert.com/tools/cast/docs/no-transcript · Cast docs
Last updated: 2026-07-14