Convert WAV to text
Lossless audio deserves an accurate transcript. Upload your WAV and read it as text in seconds.
Free: 60 min per 30 days, files up to 30 min / 50 MB · Paid plans: 10 to 100 hrs, files up to 2 GB. Big video? Upload just its audio track: same transcript, much faster upload.
Encrypted in transit · audio & video auto-delete in 30 days · never used to train AI
Optional settings
Set this for the most accurate result on quiet or mixed audio.
Get a second copy translated into another language (Pro).
Uncommon words the AI might misspell. List them so they come out right.
Last updated 21 July 2026
WAV files are uncompressed, which makes them the favorite of studios, field recorders and courtroom equipment, and their clean signal is ideal input for speech recognition. Trustample transcribes WAV directly, no conversion step needed.
Because WAV files get large quickly, resumable uploads matter: if your connection drops mid-upload, Trustample continues where it stopped instead of starting over.
WAV shows up wherever fidelity was the point at recording time: field recorders on interviews, court and deposition equipment, podcast studio masters, oral-history archives. Those are exactly the recordings whose transcripts get quoted, cited or archived, so the synced editor matters here: click any sentence to hear the original moment and verify a quote against the source before it goes anywhere official.
How it works
- 1Drop the WAV file in; uploads resume automatically if your network hiccups.
- 2The transcript is generated with punctuation and word timestamps.
- 3Correct anything inline and export in the format you need.
Frequently Asked Questions (FAQs)
Is WAV better than MP3 for transcription?
Slightly, yes. WAV is uncompressed, so nothing of the speech signal is lost. In practice a clean MP3 transcribes nearly identically; the recording environment matters far more than the format.
My WAV file is huge. Will it upload?
Free accounts cover files up to 30 minutes; Pro accepts up to 2 GB, which is hours of uncompressed audio. Uploads are resumable, so large files survive flaky connections.
Can I transcribe multi-channel (stereo) WAV recordings?
Yes. Stereo recordings are transcribed as a single conversation, and speaker separation labels the voices it hears on every paid plan. Note that it separates voices by how they sound, not by which channel they're on, so a per-channel split isn't something you configure.
What export formats are available?
TXT free, and DOCX, PDF, SRT and VTT on any paid plan (from Basic): the same five formats available across all Trustample tools.
Do 24-bit or 96 kHz studio WAVs work?
Yes. High bit depths and sample rates upload and transcribe fine. Speech recognition doesn't gain anything above standard rates, so there's no need to re-record or convert; the engine simply reads what's there.
Can I try WAV transcription without paying?
Yes. The free plan includes 60 minutes each month with files up to 30 minutes / 50 MB, which fits several typical WAV recordings. Note that uncompressed audio hits the 50 MB cap sooner than MP3 does: a few minutes of stereo WAV is already tens of megabytes.
An honest note: The format's real problem is size, not sound: WAV is uncompressed, so files balloon fast and upload slowly on modest connections. Converting to FLAC (lossless) or M4A first shrinks the upload dramatically with no meaningful transcription difference, and worth it for anything longer than a few minutes on the free plan's 50 MB cap.
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