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Creating Machine-Generated A/V Transcripts
If you have an audio or video recording from your fieldwork that needs to be transcribed, you might save some time creating a machine-generated transcription that you can then edit. Princeton offers free tools to upload audio/visual files and create transcriptions from them. Instructions for how to do this using Kaltura are below. Instructions for Princeton-supported services will be added if they become available for all Princeton users.
Creating Audio Transcripts Using Zoom (free for PU users)
Creating and Editing A/V Transcripts Using Kaltura (free for PU users)
Uploading A/V Files to Kaltura
- Request media upload privileges for Princeton Media Central at email@example.com
- Log In to Media Central
- Click “+ ADD NEW” at the top of the page.
- Click “Media Upload”
- Upload Files (3GB maximum size, unlimited storage)
- The machine-generated Caption and Transcription process starts automatically. The quality will depend on the quality of the recording. The average accuracy rate is around 80%. (This audio recording generated a 92%-accuracy-rated transcript.)
- After the media file is processed, follow the following instructions to download the transcription file or edit the captions. (You may have to refresh the page to show the processing is complete.)
Note on Privacy and Confidentiality: You can upload, create transcriptions, and delete the files without having to make them public. Kaltura content is encrypted at rest and in transit. Once the content is uploaded, only the owner of the content and local Kaltura admins at Princeton have the ability to access that content unless the owner grants access to others. Once the content is deleted, it disappears from both Kaltura and Princeton servers. Some more info on Kaltura security here.
Downloading Transcription Files in Kaltura
- Click My Media and Log in https://mediacentral.princeton.edu/my-media
- Click the Media to Edit
- Click ACTIONS below the Media displayed
- Click “Edit”
- Click Attachments
- For the .txt file, under “Actions,” Click the Download button
- Edit the text file as appropriate
Editing Captions in Kaltura
Creating Audio Transcriptions Using Otter.ai
Otter.ai is a popular freemium service offering high-quality transcriptions.
- Free version: 600 minutes/month
- Pro version ($100-155/year): 6000 minutes/month