SRT carries timing
Each cue contains a sequence number, start and end times, and spoken text. It is a separate subtitle file, not a video with captions burned in.
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MP3 to SRTCreate timed subtitle drafts
Upload an MP3 audio track, review the words and timing, then export SRT captions for a video or audiogram using the same audio.
We supportYouTubeTikTokInstagramXFacebookMP3, MP4, WAV, M4A, MOV, etc.
Create timed subtitle drafts
Choose the output and review steps that fit your recording.
Keep the original audio timeline
Cue times start at the beginning of the uploaded MP3. If your video adds an intro, removes pauses, or changes speed, adjust the SRT in your video editor.
Review readability
Check proper names, punctuation, cue length, and timing against playback before publishing captions.
How to Convert MP3 to SRT
Prepare the recording, review the result, and export the format you need.
Step 1
Upload the final audio track
Use the MP3 that matches the audio in your video. Choose the spoken language before starting.
Step 2
Review the timed transcript
Listen at sentence boundaries and correct misheard words. Check speaker changes and long captions.
Step 3
Export and preview SRT
Choose SRT in the export menu, import it into your video editor, and preview it against the complete video before publishing.
A practical example
Illustrative examples, not output from a customer recording.
Video editors
An SRT cue
This illustrative cue displays from 1.2 to 3.8 seconds after the uploaded MP3 begins. Actual times come from your recording.
- Input:
- An MP3 in which the speaker starts at 00:01.200
- Output:
- 1 00:00:01,200 --> 00:00:03,800 Welcome to the field recording workshop.
Audiogram creators
Adding an intro
A new five-second intro shifts this cue five seconds later. Recheck all cues after editing.
- Input:
- The same MP3 placed after a five-second intro
- Output:
- 1 00:00:06,200 --> 00:00:08,800 Welcome to the field recording workshop.
Privacy Controls for Uploaded Media
FastScribe keeps privacy claims practical and tied to controls available in the product.
Controlled Access
Transcription files and results stay scoped to the account or guest session unless the user explicitly creates a share link.
Configurable Retention
Available retention choices depend on account access and can be managed as part of the transcription workflow.
User-Directed Deletion
Signed-in users can manage and delete transcription tasks from their workspace instead of publishing them by default.
MP3 to SRT FAQ
Common subtitle questions from audio-first creators and editors.
How is SRT different from TXT?
TXT is for reading and searching. SRT adds numbered cues and start/end times so a compatible player can display each caption.
Will captions match a separately edited video?
Only when the audio timeline matches. Added intros, cuts, silence removal, or speed changes require retiming in the video editor.
Does this add captions permanently to my video?
No. The output is an SRT file. Import it into an editor or publishing platform to display subtitles or burn them into a video.
Can I export plain text as well?
Yes. Choose TXT for a reading copy or DOCX for document editing from the same reviewed transcript.
Try MP3 to SRT Before Signing Up
Start with 15 guest credits. Create an account when you need larger jobs and receive 120 registration credits with no credit card required.
Continue with your recording
Find the next tool for your source file or finished transcript.