WAV to Text
Studio bounces, field recordings, DAW exports
WAV is the format your DAW bounces, your field recorder writes to card, and broadcast studios standardise on. Drop a PCM or BWF WAV and get a transcript with timestamps in seconds. Free, no signup.
Drop your file here
or click to browse
MP3 · MP4 · WAV · M4A · OGG · WEBM · FLAC · Max 25MB · Max 30 min
How it works
- 1
Drop your file
Upload from your device or drag and drop. Any common audio or video format.
- 2
Whisper transcribes the audio
Whisper large-v3 runs on our backend with automatic punctuation and per-segment timestamps.
- 3
Edit, export, share
Review the transcript, summarize with AI, translate to 50+ languages, and export as TXT, DOCX, PDF, or SRT.
Cleaner per-line layout with timestamps. Best for reading.
Why Mictoo for WAV transcription
PCM and BWF, no conversion
Standard 16/24/32-bit PCM WAV and Broadcast Wave (BWF) with metadata. We accept the file as-is with no conversion step required.
No lossy codec artifacts
Uncompressed PCM does not add lossy compression artifacts. A clean recording can be a strong source, but room noise and mic placement still matter.
Any sample rate, any bit depth
44.1 kHz, 48 kHz, 96 kHz, 192 kHz. Whisper resamples to 16 kHz mono internally, so your source rate does not affect quality.
BWF metadata is preserved on your side
We ignore the iXML/bext metadata blocks during transcription. Your original WAV file (and its metadata) is never modified.
When WAV to text is the right fit
Field recorder capture
Zoom H4n, H5, H6, Tascam DR-40, Sound Devices MixPre. Whatever the field kit writes to card, drop the WAV for a clean transcript.
DAW bounce for reference
Rough mix or vocal-only bounce from Logic, Pro Tools, or Ableton. Get a text version of the lyrics or dialogue for reference.
Broadcast interview
BWF recording from a radio interview or podcast studio. Transcript feeds show notes, quotes, and archival documentation.
Oral history archive
Long-form oral history recording captured to WAV for preservation. Transcript makes the archive searchable and quotable.
Deposition and legal recording
Recorded proceedings captured as uncompressed WAV for evidentiary quality. Transcript for review and citation.
Voiceover work
ADR pass, narration recording, or voiceover session bounced to WAV. Transcript confirms the read matches the script.
What is inside a WAV file
WAV is a container commonly used for uncompressed PCM audio. Its extra resolution is useful for production and archiving, while recording conditions still determine how intelligible the speech is.
PCM and Broadcast Wave
Standard PCM WAV and BWF recordings can carry the same spoken audio; BWF adds production metadata around it.
Sample rate and bit depth
High sample rates and bit depths preserve production headroom, but they cannot repair noise, clipping, or a distant microphone.
Large by design
Uncompressed WAV grows quickly. For long interviews, split the recording or make a smaller mono speech copy if needed.
Metadata stays outside
BWF, iXML, and cue metadata are not added to the transcript, and the original source file is not modified.
Frequently asked questions
What kinds of WAV files does Mictoo accept?
Standard PCM WAV at 16-bit, 24-bit, or 32-bit float, any sample rate (44.1 kHz through 192 kHz), mono or stereo. Broadcast Wave (BWF) is also fully supported with iXML/bext metadata preserved in your original file.
Does higher bit depth or sample rate improve the transcript?
No. Whisper resamples all audio to 16 kHz mono internally before transcription, so bit depth and sample rate beyond that ceiling do not affect accuracy. Recording quality (mic choice, room, noise floor) matters much more than the container spec.
My studio WAV is over 60 MB. What now?
A stereo 24-bit 48 kHz WAV is around 17 MB per minute, so any recording over about 3 minutes hits the cap. Convert to 16 kHz mono WAV (or 128 kbps MP3) with ffmpeg -i in.wav -ar 16000 -ac 1 out.wav. Transcription quality is identical.
Do you keep my WAV file?
No. The file streams to the transcription provider, gets processed once, and is dropped from memory. We never write it to disk. The transcript is only stored if you sign in and add it to your history.
Can I keep the original BWF timestamps in the transcript?
The transcript uses relative timestamps from the start of the file (0:00 baseline). BWF absolute-time metadata is not carried into the text output. Match the two on your side if you need scene-timecode alignment.
Does Mictoo transcribe non-English WAV?
Yes. Whisper large-v3 supports 50+ languages with auto-detection. For short recordings or unusual accents, set the language explicitly in the dropdown for cleaner first-pass detection.
Can I get SRT captions for a WAV recording?
Yes. Download SRT or VTT after transcription. Both formats include timestamps aligned to the original WAV timeline for use in video editors or accessibility tools.
How long does a WAV transcription take?
A 15-minute WAV typically finishes in 20-40 seconds end to end. Larger files near the upload cap take 40-80 seconds. Upload speed is often the longer step since WAV files are big.
Do you support 32-bit float recordings from Sound Devices?
Yes. 32-bit float WAV files from MixPre, F-series, or Zoom F-series recorders are accepted and transcribed the same way as standard PCM.
Can I translate the transcript to another language?
Yes. After transcription, pick a target language and click Translate. Translation runs on GPT-4o-mini and appears alongside the original transcript.