How to Generate Subtitles from Audio
Create timed SRT subtitles or captions from a podcast, interview, or any audio file. Upload it, transcribe, and export an SRT aligned to the speech.
To generate subtitles from audio, upload your audio file to LiteScribe and it transcribes the speech into timed text with speaker labels. Export the result as an SRT subtitle file with timestamps aligned to the words, ideal for captioning a podcast video, an audiogram, or any audio you plan to pair with picture. Free to start on web, desktop, mobile, and Chrome.
Why subtitle audio at all
Audio on its own has no picture to caption, but timed subtitles from audio are still useful in plenty of workflows. Podcasters turn an episode into an audiogram or a full video for YouTube and need captions to match. Course creators pair narration with slides. Social clips pulled from a longer recording need burned-in or sidecar captions because most feeds autoplay muted. In each case you start from audio and produce a timed SRT that drops straight into the video tool doing the visuals.
LiteScribe transcribes common audio formats (MP3, WAV, M4A, FLAC, AAC, OGG, WMA) directly with no conversion step, keeps the timing of every spoken segment, and exports that as an SRT. The same transcript also exports to DOCX, PDF, or plain text if you want show notes or an article alongside the captions.
Accurate timing and speaker labels
The value of a subtitle file is in its timing: each cue has to appear and disappear with the words. LiteScribe derives those timestamps from the transcription itself, so the SRT lines up with the audio without manual spotting. Speaker diarization separates each voice, so a two-host podcast or a recorded interview produces captions that can credit who is speaking, which is especially helpful when the eventual video shows multiple people.
Audio quality feeds straight into caption quality. A clean recording at a reasonable bitrate gives the engine crisp speech to read; very low-bitrate audio can blur consonants and need a few more edits. Whatever the source, you review and correct the text in the editor before exporting, so the final SRT is exactly what you want on screen.
Refine, retime, and reformat
After export you are not locked in. The free subtitle timing shifter moves every cue by a fixed offset if the captions sit slightly ahead of or behind the picture once you drop them into a video. The free subtitle converter turns the SRT into WebVTT for web players that prefer it, or into plain text to reuse as a transcript. Everything past the transcription step runs in your browser with no upload, so your text stays on your device.
Why use LiteScribe for subtitles
Timed SRT export
Export an SRT with timestamps aligned to the speech, ready to pair with an audiogram, slide deck, or social video.
Any audio format
MP3, WAV, M4A, FLAC, AAC, OGG, and WMA all upload directly with no conversion before transcription.
Speaker labels
Diarization separates voices, so multi-host podcasts and interviews produce captions that credit the right speaker.
Reusable transcript
The same transcript also exports to DOCX, PDF, or TXT for show notes, articles, and searchable archives.
How to Generate Subtitles from Audio
- 1
Upload your audio
Add your MP3, WAV, M4A, FLAC, AAC, OGG, or WMA file. It uploads directly with no conversion, and large files use resumable upload so a dropped connection does not lose progress.
- 2
Transcribe the speech
LiteScribe returns timed text with speaker labels in 100+ languages, with automatic language detection. The timestamps come from the transcription, so they line up with the audio.
- 3
Edit and label
Fix any misheard terms in the editor and rename speakers so the captions credit the right person.
- 4
Export the SRT
Download an SRT subtitle file, then load it into your video tool. Use the free subtitle converter to make a VTT or TXT version if you need one.
SRT out of the box, VTT in a click
LiteScribe generates subtitles by transcribing your media and exporting an SRT file, the most widely supported caption format, aligned to the speech. When you need WebVTT for a web player, run the exported SRT through the free in-browser subtitle converter to produce a valid VTT with no upload. If the captions sit slightly ahead of or behind the picture, the free timing shifter nudges every cue by a fixed offset. Transcribe once, then convert and retime for each destination.
Frequently Asked Questions
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