Single lead melody
A clean one-note-at-a-time lead line through the 1-credit Basic Pitch path.
- Basic Pitch
- Basic Pitch
- 17.84s MIDI
- 17.84s MIDI
- 1 track
- 1 track
- 18 notes
- 18 notes
Source audio
18s mono WAV
MIDI preview
Basic Pitch output
Lossless AI conversion
WAV to MIDI Converter
AI online tool · 2 free trial credits on signup · turn lossless WAV into editable .mid
WAV is lossless, so detection is usually more stable than MP3. PureMIDI reads WAV directly, uses AI to detect pitch, timing, and velocity, and exports an editable MIDI draft for any DAW — useful for clean stems and live recording transcription.
Conversion mode
Upload audio
Choose a supported file, then convert it to MIDI.
Choose an audio file to start
Formats: WAV / AIFF / FLAC. Max 12MB.
MIDI preview
Hear real conversion examples
These samples were generated through the same production conversion paths users get: Basic Pitch for single-part audio and MT3 for full-song mode.
1 credit
Full-song mixed draft
A short mixed arrangement through full-song mode, returning one multi-track MT3 MIDI draft.
- MT3
- MT3
- 31.77s MIDI
- 31.77s MIDI
- 8 tracks
- 8 tracks
- 113 notes
- 113 notes
Source audio
32s stereo WAV
MIDI preview
MT3 output
The source clips are PureMIDI-owned synthetic demos; the MIDI files are raw provider outputs, not hand-corrected.
How WAV to MIDI works
- 01
Upload WAV
Drop in a 16-bit or 24-bit WAV up to 12MB.
- 02
AI transcribes notes
The model analyzes onsets, pitches, and velocities, then writes editable MIDI notes.
- 03
Download MIDI
Open the resulting .mid in Pro Tools, Logic, Cubase, Ableton, or any DAW for further editing.
When WAV to MIDI shines
Studio stem transcription
Turn pitch-clear vocal, guitar, piano, or bass stems into editable MIDI drafts.
Live performance capture
Convert live or rehearsal WAV recordings to MIDI for review and re-arrangement.
Sample-flip production
Turn sample loop WAVs into MIDI and remap them to your own sounds.
Classical and academic analysis
Convert high-quality performance WAVs to MIDI for notation, comparison, and study.
Why WAV is more accurate
- WAV is lossless, so the AI sees the full spectrum and produces more accurate MIDI than from MP3.
- If you have a full mix, isolate one pitch-clear part first for top accuracy, or use full-song mode (6-15 credits by length) to generate a multi-track MIDI draft.
- Multi-channel surround WAVs should be downmixed to stereo or mono before upload.
- Heavy reverb smears note onsets — reduce wet level before exporting WAV when you can.
Studio WAV to MIDI workflow
If you have stem WAVs from a Pro Tools / Logic / Cubase / Reaper session, this is the recommended pipeline.
- 1. From your DAW, bounce each track to 24-bit / 48 kHz WAV (keep 0.5s of silence on both ends as alignment marker).
- 2. If vocals and lead are already isolated, upload them directly; otherwise isolate one clear part before conversion, or upload the full mix to full-song mode (6-15 credits by length) for a multi-track MIDI draft.
- 3. Upload vocal, guitar, piano, or bass stems individually to PureMIDI to get MIDI drafts.
- 4. Create matching MIDI tracks back in your DAW and import the MIDI files at the same alignment point.
- 5. Apply light quantization (10–30% strength) to preserve human feel, then assign the synth instruments from your session.
Why not just use the DAW's built-in audio→MIDI?
PureMIDI turns detected pitch and timing into a MIDI draft and is most reliable on monophonic vocals and solo instruments. For complex mixes, you can pre-separate stems for best quality, or use full-song mode (6-15 credits by length) to generate a multi-track MIDI draft. Percussion may still need manual cleanup downstream.
Stem type and recognition guidance
Different stems benefit from different preprocessing. The current model is strongest on pitch-clear parts.
| Stem type | Preprocessing | MIDI cleanup | Suggested instrument |
|---|---|---|---|
| Lead vocal | Denoise + de-reverb | Check note lengths and slides | Piano or vocal synth |
| Bass | Preserve the low fundamental | Check octave and short notes | Sub bass / electric bass |
| Lead piano / guitar | Light compression | Clean overlapping notes | Acoustic piano / EP |
| String pad | Reduce reverb | Split by pitch range | Strings / synth pad |
| Choir | De-reverb | Manual voice cleanup | Choir / voice patch |
| Drums / percussion | Not recommended as the primary input | Use manual or dedicated drum transcription | Map GM drums separately |
Clean up MIDI after conversion
Once you have a .mid file, you can inspect tracks, quantize timing, tweak velocities, and export a cleaner MIDI before opening your DAW.
WAV to MIDI FAQ
Is WAV more accurate than MP3 for MIDI conversion?+
Usually yes. WAV preserves the full audio signal so the AI extracts pitch and timing more reliably.
Do you support 24-bit WAV?+
Yes. 24-bit / 48kHz studio WAV files work directly.
What's the WAV file size limit?+
Free users get 12MB. Paid plans raise the cap and add batch conversion.
Can I convert multitrack WAV?+
The converter handles one file at a time. Split a mix into pitch-clear parts and convert each independently for best quality, or upload the mix to full-song mode (6-15 credits by length) for a multi-track MIDI draft. Drums and percussion may still need manual cleanup.
What if my WAV has heavy reverb?+
Try exporting a drier version. Reverb smears note onsets and lowers detection accuracy.
Does AIFF work too?+
Yes. AIFF is the same family of lossless formats and is supported.
What should I do with the MIDI after export?+
Quantize lightly, tweak velocities, and assign instruments in your DAW for the most musical playback.
Is it good for classical analysis?+
Yes. Convert lossless recordings to MIDI, then import into Sibelius, Dorico, or MuseScore for pitch, rhythm, and expression analysis.
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