Supported formats
Voice2Sub is built for real-world media files from phones, cameras, screen recorders, editors, podcasts and lectures. Start with the file you already have, generate AI subtitles or text locally, then export SRT, VTT, TXT, LRC or CSV.
Broad media support with a clear container/codec caveat for unusual files.
Supported Formats
Voice2Sub is designed to open a broad range of common and many less common video or audio files directly in the desktop app. That includes real-world files from phones, cameras, screen recorders, editing apps, podcasts, lectures and voice recordings.
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Use this page as the compatibility guide before format-heavy projects such as MP4 to SRT, MP3 to transcript, VTT for web players or CSV review handoffs.
Start from MP4, MOV, MKV, AVI, WebM, MP3, WAV, M4A, FLAC or another supported video/audio file.
Voice2Sub recognizes speech and creates subtitle or transcript text you can review.
Export SRT, VTT, TXT, LRC or CSV based on where the result will be used.
Supported formats
Voice2Sub is designed for broad media support: common containers and many less common real-world video or audio files from creators, cameras, phones, screen recorders, podcasts, lectures and editing apps. If a familiar container uses an unusual codec, open it in Voice2Sub to confirm compatibility before a long workflow.
Import videos from phones, cameras, screen recorders, editing apps and archive folders.
Import recordings, podcasts, interviews, lectures, meetings and voice notes.
Export subtitles, WebVTT, transcript text, lyric-style timing or CSV review data.
File extensions are examples. Containers such as MP4, MOV or MKV can hold different codecs; unusual or proprietary codecs should be tested in the app before long processing jobs.
Export guide
Choose the output based on where the subtitles or transcript will be used after review.
Use SRT or VTT when you need a standard caption file for publishing workflows.
Use VTT/WebVTT when the destination is a web video player or HTML5 caption workflow.
Use SRT for broad compatibility or CSV when structured timing/text review is useful.
Use TXT when you need readable text for notes, search, documentation or handoff.
Use LRC when line-by-line timing is helpful for lyric-style or timestamped text workflows.
Container vs codec
MP4, MOV and MKV are containers. They can hold different audio/video codecs inside the same extension. Voice2Sub is built for broad real-world compatibility, but very unusual or proprietary codecs should be opened in the app first before a long processing job.
Input coverage
The page is meant to answer format questions from creators, educators and editors: camera videos, screen recordings, downloaded meeting files, podcast audio, lectures, interviews and exports from editing software.
Output coverage
SRT and VTT are caption files. TXT is readable transcript text. LRC adds line-by-line timing, and CSV is useful for structured review or handoff. The right output depends on where the result goes after review.
Conversion rule
For common video and audio files, start with the original media. Convert only when a file cannot be opened, uses an unsupported codec, or comes from an unusual tool that created a nonstandard stream.
AI Transcription
Voice2Sub also covers speech to text, audio to text, video transcription and Whisper AI transcription, so subtitle generation can stay connected to transcript and export needs.
Format examples
These examples match practical long-tail questions such as MP4 to SRT, MOV to captions, MP3 to transcript, WAV to text and VTT for web players.
Yes. MP4 is a common video container supported by Voice2Sub. Codec compatibility can still vary for unusual files, so test unfamiliar media before a long workflow.
Yes. Import an MP3 or WAV audio file, generate text with AI recognition, review the result and export SRT when timed subtitles are useful.
SRT is widely used for subtitle exchange and review. VTT, also called WebVTT, is common for web video captions and some publishing workflows.
A familiar extension can contain an uncommon codec. Open the file in Voice2Sub first to confirm compatibility before committing to a long processing job.
Usually no. Start with the original video or audio file when it is a common format. Convert only if the file cannot be opened or uses an unsupported codec.
Yes. The free desktop app includes the core media import and subtitle/transcript export workflow, including SRT, VTT, TXT, LRC and CSV.
Download the desktop app, import video/audio on your computer, and export SRT, VTT, TXT, LRC or CSV after review.