AI Transcription vs Captions vs Subtitles: What's the Difference?
AI transcription, captions, and subtitles sound interchangeable, but they serve different audiences and workflows. If you are picking a speech-to-text tool, knowing the difference helps you choose the right feature and export format for your use case.
Quick summary
AI transcription is a plain text record of everything that was said. Captions are timed text displayed in sync with video and usually include speaker labels and sound effects. Subtitles are timed text translations or same-language text for viewers who can hear the audio.
What is AI transcription?
AI transcription converts spoken audio into written text. It is the starting point for most speech-to-text workflows. A transcript can be verbatim, edited, summarized, or turned into action items. It is not automatically time-coded to video frames.
Use AI transcription when you need a searchable record of a meeting, interview, lecture, or call. Tools such as Pikka Talk run transcription in real time and save the result to a library for later review.
What are captions?
Captions are time-synchronized text shown on screen while video or audio plays. They are designed for accessibility, so they include speaker names, sound effects, and non-speech information. Captions can be open (burned into the video) or closed (turned on and off by the viewer).
Use captions when you need to make video or live meetings accessible to deaf and hard-of-hearing audiences, or when viewers are in a noisy environment.
What are subtitles?
Subtitles are also time-synchronized text, but they usually only show spoken dialogue. They are often used for language translation, although same-language subtitles are common for people who prefer reading along or are learning a language.
Use subtitles when you are distributing video in multiple languages or when viewers can hear the audio but want a text translation. The most common subtitle formats are SRT, VTT, and ASS.
AI transcription vs captions vs subtitles
| Feature | AI transcription | Captions | Subtitles |
|---|---|---|---|
| Primary purpose | Searchable record | Accessibility | Translation or reading aid |
| Time-coded | No | Yes | Yes |
| Sound effects | Sometimes | Usually | Rarely |
| Common exports | TXT, DOCX, PDF, JSON | SRT, VTT | SRT, VTT, ASS |
| Best use case | Meetings, interviews | Video, live events | Video distribution |
Can you turn a transcript into captions or subtitles?
Yes. Most modern tools let you take a transcript, align it to audio or video timestamps, and export it as SRT or VTT. The accuracy of the final captions or subtitles depends on the quality of the original transcript, so a good AI transcription engine is the foundation.
With Pikka Talk, you can record a session, save the transcript, and export it for caption or subtitle workflows.
Which one do you need?
Choose AI transcription for meetings and interviews where you need a searchable record. Choose captions for live events and video where accessibility matters. Choose subtitles when you want to translate video or let viewers follow along in another language.