Transcribe WAV files — lossless audio, no wasted processing
WAV gives our speech model the cleanest possible input — no compression artifacts to work around. But 96kHz sample rates and 24-bit depth don't improve speech transcription. We'll explain why, and transcribe your WAV accurately regardless.
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.wav·fino a 500MB
The real advantage of WAV for transcription (and the myths)
WAV files contain uncompressed audio — no lossy encoding, no compression artifacts, no frequency cutoffs. This gives speech recognition models a cleaner signal to work with compared to MP3 or AAC. But there are persistent myths: recording at 96kHz instead of 44.1kHz does not improve transcription accuracy for speech, and 24-bit depth offers no advantage over 16-bit for voice. Human speech lives below 8kHz and has about 50dB of dynamic range — well within 16-bit/44.1kHz capabilities. What matters is that WAV preserves what was captured without adding compression damage.
Come funziona
Carica il tuo file WAV
Drag and drop any WAV file — PCM, IEEE float, any sample rate, any bit depth. We handle 16-bit/44.1kHz studio recordings and 32-bit float DAW exports equally.
- PCM and IEEE float WAV formats supported
- Any sample rate: 8kHz telephony to 192kHz studio
- Files up to 500 MB (roughly 45-90 minutes depending on settings)
Lossless decoding and transcription
The uncompressed audio goes directly to our speech model with no decoder artifacts added. Internal processing resamples to the optimal rate for speech recognition.
- No decoder stage — raw PCM goes straight to the model
- High sample rates downsampled internally for speech
- Speaker diarization benefits from artifact-free audio
Review and export
Edit the transcript in the browser, then export as plain text, subtitles, or documents. Timestamps are synced to the original WAV timeline.
- Esporta come TXT, SRT, VTT, DOCX o PDF
- Precise timestamps for cross-referencing
- In-browser editing before export
Funzionalità
Uncompressed signal advantage
The real benefit of WAV: no lossy encoding artifacts. MP3 introduces pre-echo, bandwidth limiting, and stereo imaging artifacts. AAC introduces different but similar artifacts. WAV has none of these. For difficult audio (quiet speech, heavy accents, overlapping voices), this cleaner signal genuinely helps accuracy.
Sample rate myth handling
Human speech is concentrated below 8kHz. A 44.1kHz WAV captures frequencies up to 22kHz — well beyond what matters for speech. Recording at 96kHz or 192kHz captures ultrasonic frequencies that speech models ignore entirely. We resample high-rate files internally, so a 96kHz WAV and a 44.1kHz WAV of the same recording produce identical transcripts.
Bit depth reality check
16-bit audio has 96dB of dynamic range. Human speech typically has 40-50dB of dynamic range. 24-bit provides 144dB of dynamic range — useful for music mastering, irrelevant for speech recognition. Your 16-bit recordings will transcribe just as accurately as 24-bit ones.
32-bit float DAW compatibility
DAWs like Pro Tools, Logic, Ableton, and Reaper export 32-bit float WAV files by default. We handle these without issues — the float samples are processed directly without clipping or precision loss during internal conversion.
Multi-channel WAV support
Broadcast and studio WAV files sometimes contain more than two channels — surround sound mixes, isolated microphone feeds, or multi-track bounces. We process all channels to capture speech from wherever it appears in the mix.
Perché scegliere Vocova
Transcribe studio and broadcast recordings
Radio broadcasts, voice-over sessions, and studio recordings are typically archived as WAV. Upload them directly and get the highest accuracy transcription from the highest quality source material.
Process field recordings from research
Ethnographers, linguists, and oral historians recording with field recorders (Zoom H6, Tascam DR-40) typically capture WAV. These lossless recordings give the best possible input for transcribing challenging field conditions.
Transcribe DAW exports directly
When you bounce a podcast, voice-over, or narration from your DAW, the export is usually 32-bit float WAV. Upload it directly — no need to convert to MP3 first. You'll get better results from the lossless source.
Archive irreplaceable recordings as text
Oral histories, rare interviews, and historical recordings preserved as WAV represent irreplaceable audio. Converting them to searchable text creates a backup of the content that can be indexed, cited, and referenced without replaying the audio.
Chi può trarne vantaggio
Audio engineers and studio professionals
Transcribe WAV recordings from studio sessions, voice-over work, and broadcast productions. Your high-quality source material translates directly into higher transcription accuracy.
Field researchers and ethnographers
Convert WAV field recordings of interviews, focus groups, and oral histories into text for qualitative coding and analysis. Lossless audio preserves details that help with difficult-to-hear passages.
Podcast editors working in DAWs
Transcribe the WAV master before compressing to MP3 for distribution. Get better accuracy from the lossless source, and use the transcript for show notes and content repurposing.
Archivists preserving audio collections
Convert WAV archives of historical recordings, oral histories, and institutional audio into searchable text. Make decades of audio content discoverable without replaying every file.
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