Audio conversion guide
How to Convert Audio to SRT
An SRT file contains numbered captions with start and end times. Speech recognition can produce a draft, but a readable subtitle file still needs timing and text review.
The direct answer
Transcribe the audio with a speech-to-text tool that returns timestamps, format the segments as SRT, then proofread while listening. Do not publish an unreviewed transcript when names, numbers, or accessibility matter.
Choose the route that matches your goal
| Your goal | Recommended route | Expected result |
|---|---|---|
| Private local transcription | Run an offline speech-recognition model on your device | Local transcript and timestamps |
| Fast cloud transcription | Use a provider after reviewing retention and training terms | Hosted processing and downloadable captions |
| Existing YouTube video you own | Use YouTube Studio subtitles and download the caption file | Creator-managed captions |
Build an accurate SRT file
Clear audio and correct language selection reduce editing time, but they do not remove the need for review.
- 1
Use the cleanest audio track and identify the spoken language before transcription.
- 2
Generate timestamped segments and export or format them as numbered SRT cues.
- 3
Keep captions readable by splitting at natural phrases and avoiding overly long lines.
- 4
Listen through the full file to correct names, numbers, punctuation, overlaps, and cue timing.
Important checks and limitations
Speech models can hallucinate: Silence, music, noise, and unclear speech can produce words that were never spoken.
SRT has limited styling: It is designed for timing and text, not complex positioning or rich typography.
Consent and privacy matter: Check whether you are allowed to upload or transcribe calls, meetings, and personal recordings.
Frequently asked questions
Can an SRT file contain speaker names?
Yes, as text inside each cue, but SRT has no standard speaker metadata. Add labels consistently and verify who is speaking.
Why do subtitles drift out of sync?
Incorrect source timing, variable frame-rate edits, or changed media duration can shift cues. Sync against the final exported media.