Supported file formats
- Video
- Audio
| Format | Extension |
|---|---|
| MP4 | .mp4 |
| MOV | .mov |
| WebM | .webm |
The upload area accepts all common media formats. If your file is rejected, convert it to one of the formats listed above using a tool like Handbrake or FFmpeg.
How to upload a recording
Drag and drop your file
Drag one or more files from your computer onto the upload area. You can also click the area to open a file picker. You can upload up to 30 files at once.
Select the interview language
Use the Language dropdown to choose the primary language spoken in the recording. Smartinterview uses this to improve transcription accuracy. Supported languages include French, English, German, Spanish, Italian, Portuguese, Dutch, Polish, Russian, Chinese, Japanese, and Korean.
What happens after upload
Once you upload a file, Smartinterview:- Compresses the audio — the recording is automatically converted to a compact format (mono, 16 kHz) to reduce bandwidth and processing time. The original file is not modified.
- Stores the file securely — your recording is saved to encrypted cloud storage, accessible only to your account.
- Queues for transcription — the file is ready for you to start a transcription job. Processing is asynchronous, so you can upload multiple files and kick off transcription at any time.
Estimating token cost
Transcription costs 8 tokens per minute of audio. Use this formula to estimate the cost before you start:| Recording length | Token cost |
|---|---|
| 15 minutes | 120 tokens |
| 30 minutes | 240 tokens |
| 60 minutes | 480 tokens |
| 90 minutes | 720 tokens |
Managing uploaded files
After uploading, your files appear in the transcription history sidebar. Workspace-grouped recordings are listed under Folders and standalone files under Files. From there you can:- View status — see whether a file is pending, processing, completed, or failed.
- Delete a file — select the file and click the delete icon to remove it and its associated transcript.
- Move a file — if you have multiple workspaces, drag a file to a different workspace or use the move icon to reassign it.

