Convert Audio to an SRT Subtitle File
Upload an audio file and ScreenApp transcribes the speech, then lines the text up with timestamps so it downloads as an SRT file. You get the subtitle file to add to a video, publish alongside a podcast, or hand to a translator, without typing out the audio by hand.
ScreenApp does not turn your audio into a video with captions burned in. What you get is the subtitle file itself: SRT or VTT, ready to upload wherever the platform accepts one. If you want to look it over before publishing, the subtitle quality checker catches overlaps and over-long lines that are invisible in a text editor.
What you get:
- A transcript with timestamps, in 100+ languages
- Export the transcript as PDF, DOCX, TXT, SRT and VTT
- speaker identification, when more than one person talks
- transcript and caption translation, for a second-language subtitle track
- Free plan: 2 transcriptions of recordings up to 45 minutes each
How to Convert Audio to SRT
- Upload your audio file: drag in an MP3, WAV, M4A, FLAC, or similar file, or record straight into ScreenApp.
- Get the transcript: ScreenApp transcribes the speech and matches it to timestamps.
- Download the SRT file: review the transcript, then export as SRT or VTT and add it to your video or publish it alongside your audio.
Accuracy depends on the audio. Clear, single-speaker recordings transcribe best; overlapping speech or heavy background noise leaves more to review. See how we measure accuracy.
Need multiple subtitle formats at once? The multi-format audio to subtitle converter exports SRT, VTT, and other formats from a single upload.
Audio to SRT Converter vs Other Apps
| Feature | ScreenApp | Uniscribe | Otter.ai | Rev.com |
|---|---|---|---|---|
| Free plan | 2 transcriptions, up to 45 min each | 120 min/month, 30 min per file | 300 min/month, 30 min per conversation | Recording free, transcription paid |
| SRT export | PDF, DOCX, TXT, SRT and VTT | Word, CSV, PDF, TXT, SRT, and VTT | mp3 and txt on the free plan, plus pdf, docx and srt from Pro, with bulk export from Business | Not stated |
| Languages | 100+ | 63 | 6 | Not stated |
| Paid plan | $19/month annual | $6/month annual | $8.33/month annual | $25.49/month annual |
Sources, checked 2026-09-16: screenapp.io/accuracy#languages, ScreenApp pricing, uniscribe.co/pricing, otter.ai/pricing, rev.com/pricing
- vs Uniscribe: Uniscribe’s free plan gives 120 minutes a month, capped at 30 minutes per file, and its Basic plan starts at $6 a month billed annually. ScreenApp transcribes in 100+ languages against Uniscribe’s 63.
- vs Otter.ai: Otter’s free plan caps you at 300 minutes a month, and SRT export (mp3 and txt on the free plan, plus pdf, docx and srt from Pro, with bulk export from Business) needs a paid plan. ScreenApp’s free plan includes SRT export from the start.
- vs Rev.com: Rev’s recorder is free but AI transcription is pay per minute at $25.49/month (billed annually), so a batch of files adds up. ScreenApp’s plans include transcription and export.
Who Uses an Audio to SRT Converter
Podcasters adding captions to the video version of their show. Converting the audio track to SRT means captioning without re-transcribing anything.
YouTubers who record a voiceover separately upload just the audio to get the SRT, then sync it with the video during editing.
Educators making lessons accessible to students with hearing impairments or those learning in a second language get a searchable transcript alongside the audio.
Filmmakers who record clean dialogue separately from picture convert that audio to SRT, then match it to the edit in post-production.
Translators start from an accurate source-language SRT file, then translate the text while keeping the original timing.
Accessibility teams produce captions for training videos and public communications from the audio track alone.
