V
VoiceScribe AI

MP4 subtitle workflow

Convert MP4 Video to SRT Subtitles

Upload an MP4 recording and generate SRT subtitle files with accurate timing. Ideal for interviews, tutorials, and screen recordings that need captions.

Upload MP4 and create SRTBrowse subtitle tools

Drop audio or video here

MP3, MP4, WAV, M4A, MOV, WebM and more · up to 6 GB each · Free: 3/day, up to 30 minutes per uploaded file. Full transcripts, summaries and editing included.

Choose files

Record audio

Pause and resume anytime · up to 3 hours

Automatic transcription settings · target 128 kbps

Free: 3/day. Full transcripts, summaries and editing included.

  • No credit card required
  • Speaker labels
  • TXT, DOCX, SRT, VTT exports for all languages; PDF (basic ASCII only) for plain English text
  • Audio and video files

Supported formats: MP3, WAV, M4A, MP4, MOV, WEBM, AAC, FLAC

Private uploads. Files are used to create your transcript and exports.

Free daily transcription tasks included. No credit card required to start.

Built for audio, video, meetings, podcasts, lectures and interviews.

TXT, DOCX, SRT, VTT for all languages. PDF (basic ASCII only) for plain English text.

Why this tool

Built for your workflow

Extracts speech from video

Transcribe spoken audio directly from MP4 uploads without a separate audio export step.

Editor-ready SRT

Download a separate SRT file for your editor or video platform. Test its subtitle import options with the sample before publishing.

Handles screen recordings

Works with webcam clips, demos, and meeting recordings saved as MP4.

Multiple export formats

Export SRT plus TXT, DOCX, VTT (all languages), or PDF (basic ASCII only) from the same transcript.

How it works

From upload to export

  1. 1

    Upload your MP4

    Add an MP4 file from your camera, screen recorder, or export folder.

  2. 2

    Transcribe the audio track

    VoiceScribe processes the spoken audio and builds a timed transcript.

  3. 3

    Export SRT subtitles

    Download the SRT file and attach it to your video in your editor or host.

Use cases

Common scenarios

YouTube caption prep

Generate an SRT file before uploading captions to a video channel.

Course video accessibility

Add subtitles to lecture or training MP4s for students who need captions.

Client review cuts

Share timed subtitles with stakeholders reviewing interview footage.

Formats

Supported inputs and exports

Input formats

  • MP4
  • MOV
  • WEBM
  • MKV
  • M4V

Export options

  • TXT
  • DOCX
  • SRT
  • VTT
  • PDF (basic ASCII only)

Real MP4 · caption reference

Watch an MP4 with its caption reference

This 34.6-second portrait interview clip includes embedded English captions. Play the video, inspect the matching reference cues, and download the reference SRT or VTT.

The supplied portrait clip, with no cuts or speed changes. Its original captions are embedded in the picture. The optional caption track is a manually prepared reference, not a VoiceScribe export.
Download MP4 preview · 3.3 MB

If playback is unavailable, download the preview and open it locally. The text and subtitle downloads remain available.

Full timed transcript · 9 cues

Select a timestamp to seek. Press play to listen.

  1. Now, Trump is, I think maybe he's having second thoughts about Ken

  2. Paxton, because this is how, he's done this many times.

  3. And then they say, you can't say this, sir, that's so insulting,

  4. please, sir. You may not like the way he looks.

  5. The fact is that some may not like the

  6. way he dresses.

  7. I don't. They may not like the way he talks.

  8. I can see that, you know?

  9. I'm James Talarico, and I approve that message.

Download reference SRTDownload reference VTT

Source: user-supplied MP4. Reference subtitles were manually copied from its embedded captions, with timings matched to visible caption changes. These files are not verified VoiceScribe exports. This is one sample, not an accuracy benchmark or a customer testimonial.

  1. 1. Compare speech and captions

    Play the clip and compare its embedded captions with the reference cues alongside it.

  2. 2. Inspect the subtitle file

    Follow the nine timed segments as the video plays, or select a timestamp to seek. Download the reference SRT to inspect its formatting.

  3. 3. Review before publishing

    Check names and timing, then test the SRT with your final video in your chosen editor. This sample is not an editor compatibility test.

Need a reading copy instead of timed captions? See this MP4 as text

Before you publish

MP4 subtitle review checklist

A short MP4-specific review keeps subtitle timing aligned with the final video edit.

  1. Use the final MP4 cut

    Generate subtitles after the picture edit is locked. Trimming the video later can shift every cue that follows the cut.

  2. Confirm the audible track

    Play the uploaded MP4 and make sure dialogue is present, clear, and not muted beneath music or screen-recording audio.

  3. Review names and terminology

    Correct product names, acronyms, and speaker names before downloading the final SRT file.

  4. Test the SRT import

    Import the file into the target editor or video platform and spot-check the opening, middle, and final cues.

FAQ

Frequently asked questions

Do I need to extract audio from MP4 first?
No. Upload the MP4 directly and VoiceScribe transcribes the embedded audio track.
Will subtitles stay in sync with my video?
The generated SRT contains timed cues for the uploaded audio. Review the opening, middle and final cues against your final video. If the video was trimmed or rearranged after transcription, generate subtitles from the final cut; importing an older SRT does not automatically retime it.
Can I use this for screen recordings?
Yes. MP4 screen captures, demos, and webinar recordings are supported.
Does MP4 to SRT burn subtitles into the video?
No. This workflow generates a separate SRT text file; it does not render a new MP4 with permanent captions. Add the SRT in your video editor or upload it to a platform that accepts caption files. If you need burned-in subtitles, render them into the video in your editor.
Does this extract existing subtitles from an MP4?
No. VoiceScribe transcribes spoken audio to generate new subtitles. It does not extract an embedded subtitle track or read text already visible in the video. If you already have a subtitle track, use a tool that exports that track instead of retranscribing the audio.
What if my MP4 is silent or the dialogue is missing?
Play the source file and check that the intended speech is audible. A silent screen recording or a music-only clip has no spoken dialogue to transcribe. Upload a recording containing the speech you want captioned; visible slide text is not a substitute for an audio track.
What if my MP4 has background music?
Try accurate mode and review the result against the audio. Music, overlapping voices and quiet dialogue can still cause missed or incorrect words; no mode guarantees a perfect transcript.

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Ready to transcribe your file?

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