Convert your WAV files to text. Uncompressed professional audio in, professional document out.
WAV is the format of professional recorders and studios: uncompressed, heavy, faithful. Verlio transcribes it making the most of all that quality: speakers identified, AI cleanup, export to Word, PDF, SRT and VTT.
How it works — in 3 steps.
Upload the WAV file from your recorder (Zoom, Tascam, Sony) or your editing software: Verlio accepts very large files and recordings over 6 hours.
Set the document language, speaker recognition and, for technical content, attach a context document with names and terminology.
Download the transcript as Word or PDF — or as SRT/VTT if the WAV is the audio track of a video edit.
What WAV is and why professionals use it.
WAV is uncompressed audio (PCM): it records the signal as-is, losing no information. It's the standard of professional portable recorders — Zoom H-series, Tascam, Sony — of recording studios and of editing software. The flip side is the weight: an hour of stereo WAV at 44.1 kHz exceeds 600 MB, ten times an equivalent MP3.
For transcription, that weight is an advantage: more information in the signal means fewer recognition errors, especially with overlapping voices, strong accents or reverberant rooms. If you're starting from a WAV, don't convert it to MP3 before transcribing: upload it directly and keep all the quality.
Big files, long recordings: not a problem.
Verlio is built for the real files professionals work with: recordings over 6 hours upload in one go, with no splitting into parts. A full day of conference, a hearing, a focus group session from the table recorder: one upload, one document.
Speaker recognition attributes every contribution to the right voice — essential when the WAV comes from an ambient microphone that picked up four or five people — and the Structured Document adds a summary, key points, sections and a glossary to the full text.
How much does it cost to transcribe a WAV?
Pricing depends on duration, not file size: 1 credit per 30 minutes, with credits starting at €5 and no subscription. A 2-hour WAV therefore costs 4 credits, even if it weighs more than a gigabyte. Under 10 minutes is always free, and at signup you receive 1 hour of free trial with no card. Processing happens on servers in the European Union, in compliance with the GDPR — often a hard requirement for anyone recording interviews and research involving personal data.
Frequently asked questions.
Is there a size limit for WAV files?
Verlio is designed for large files: recordings over 6 hours, even beyond a gigabyte, upload without splitting. The cost depends only on duration.
Should I upload the original WAV or convert it to MP3?
The original WAV. MP3 compression removes information useful to speech recognition: for the same recording, the uncompressed file gives equal or better results.
Do you support 48 kHz / 24-bit WAV and multichannel files?
Yes, the standard sample rates and bit depths of professional recorders are supported. With multitrack files, it's best to upload the mix or the track containing the voices.
How much does a 90-minute WAV cost?
3 credits — that's €3 with the basic pack (1 credit = 30 minutes, credits from €5). No extra charge tied to file size.
Can I export with timecodes for editing?
Yes: the SRT and VTT exports contain the timestamps of every segment, useful for finding the exact spots in the recording during editing.
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Try it on your own file, right now.
Upload an audio or video file, choose the document language and download the result as Word or PDF. Your first hour is free and we never ask for a card.