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Upload WAV audio and get accurately timed WebVTT captions in minutes, ready for HTML5 players and course platforms.
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Supports 20+ file formats including MP3, MP4, WAV
WAV is uncompressed audio from studios, professional field recorders and many dictation devices: the highest-quality source you can transcribe. Upload a .wav file and Scriptivox turns the speech in it into timed WebVTT captions, the subtitle format HTML5 video players and most course platforms use.
WAV files come from field recorders, dictation devices and audio editors such as Audacity. Copy the file from the recorder's memory card or export it from the editor, then upload it.
Leave it on auto-detect or pick one of more than 100 languages. Turn on speaker recognition when more than one person talks.
Read every line in the editor, fix any word, then download the .vtt file, ready for YouTube, your video editor or your player.
| Specification | Value |
|---|---|
| Container | RIFF WAVE |
| Developed by | Microsoft / IBM |
| Introduced | 1991 |
| Audio codecs | PCM |
| Compression | Uncompressed |
| Max sample rate | 192 kHz |
| Max bit depth | 32 bit |
| Max channels | 8 |
| Gapless playback | Yes |
| Metadata / tags | RIFF INFO (limited) |
| Approx. file size | 10–32 MB per minute |
| Licensing | Royalty-free |
| Plays natively on | Native: Web browsers, Windows, macOS, iOS, Android · Needs a player: Smart TVs |
| Best for | studio editing, mastering, sample libraries |
Advanced AI technology meets simple, intuitive design
Powered by next-generation AI designed for seamless speech understanding worldwide
Transcripts delivered in real time and large files processed in minutes, not hours.
Your data is protected with end-to-end encryption, privacy-first safeguards, and enterprise-grade security controls.
Supports uploads of up to 10 hours, designed for uninterrupted transcription of lengthy sessions.
Global coverage with accent recognition and dialect adaptation, ensuring inclusivity worldwide.
Pro accepts files up to 5 GB and 10 hours each, which covers even long uncompressed WAV recordings.
Not much. Speech is captured well at 16 kHz and above, so a clean recording with little background noise matters more than a high sample rate.
You can start free, with no card, and transcribe short files every day. Pro adds unlimited transcriptions and files up to 10 hours or 5 GB each.
Yes. The editor shows every line with its timing. Correct names and terms, then download the finished file.
WebVTT is the caption format for HTML5 video. Vimeo, Wistia, JW Player, Video.js and most learning platforms accept .vtt files, and YouTube does too.
More than 100, from English, Spanish and Hindi to Arabic, Japanese and Swahili. Leave the language on auto-detect, or choose it for the best result on short files.
Files are transcribed many times faster than they play, so most are ready in a few minutes. Long recordings take a little longer, and you can close the page while they run.
Join thousands of users who trust Scriptivox for their transcription needs