MP3 to MIDI Converter

Convert MP3 audio files to MIDI format for music production, composition, and analysis. Extract musical notes and create editable MIDI files.

MP3 to MIDI Converter

Convert MP3 audio files to MIDI format with customizable quality settings.

Smaller fileBetter quality

Drop your audio files here

MP3, WAV, AAC, FLAC, OGG supported

Up to 10 files, 100MB each

Audio Conversion Features:

  • • Adjustable quality settings for file size optimization
  • • Batch processing up to 10 files at once
  • • Automatic ZIP download for multiple files
  • • Client-side processing for privacy and speed
  • • Maintains original audio quality when possible

Convert MP3 to MIDI Online

Why Convert MP3 to MIDI?

  • Music Transcription: Convert audio recordings to editable musical notation
  • Music Production: Extract MIDI data for further editing and composition
  • Learning Tool: Analyze chord progressions and melodies
  • Remix Creation: Use MIDI data to create remixes and variations
  • Educational: Study music theory from existing recordings
  • Composition Aid: Start with existing melodies for new compositions

Perfect For

  • Music Producers: Creating MIDI backing tracks
  • Composers: Transcribing audio ideas to MIDI
  • Musicians: Learning songs by ear with MIDI assistance
  • Music Students: Analyzing existing compositions
  • DJs: Creating remixable MIDI versions
  • Educators: Teaching music theory with practical examples

How MP3 to MIDI Conversion Works

1

Upload MP3 File

Upload your MP3 audio file. Works best with solo instruments or clear melodies.

2

Audio Analysis

Advanced algorithms analyze the audio to detect pitch, timing, and musical notes.

3

MIDI Generation

Musical data is converted to MIDI format with note events, timing, and velocity.

4

Download MIDI

Download your MIDI file ready for use in DAWs, sequencers, and music software.

MIDI Format & Applications

What is MIDI?

  • Musical Instrument Digital Interface: Industry standard for digital music
  • Note Data: Contains pitch, timing, velocity, and duration information
  • Small File Size: MIDI files are very compact compared to audio
  • Editable: Can be modified note by note in music software
  • Universal: Compatible with all major DAWs and music programs

Compatible Software

  • DAWs: Pro Tools, Logic Pro, Ableton Live, FL Studio
  • Notation: Sibelius, Finale, MuseScore
  • Sequencers: Cubase, Reaper, Studio One
  • Hardware: Keyboards, synthesizers, drum machines
  • Web Apps: Online MIDI editors and players

Tips for Best Results

Optimal Audio Sources

  • Solo Instruments: Piano, guitar, or single melody lines work best
  • Clear Audio: High-quality recordings with minimal background noise
  • Monophonic: Single notes at a time produce more accurate results
  • Steady Tempo: Consistent timing improves MIDI accuracy
  • Good Dynamic Range: Clear distinction between loud and soft notes

What to Expect

  • Accuracy Varies: Results depend on audio complexity and quality
  • May Need Editing: MIDI output often requires manual refinement
  • Basic Transcription: Captures main melody and rhythm patterns
  • No Harmony: Complex chords may not be fully captured
  • Learning Tool: Best used as a starting point for transcription

Privacy & Technical Details

Data Protection

  • Server-Side Processing: Advanced audio analysis algorithms
  • Automatic Cleanup: Files deleted after conversion
  • No Storage: Audio files are not saved permanently
  • Secure Transfer: HTTPS encryption for all uploads
  • Temporary Processing: Files processed and immediately removed

Technical Specifications

  • Audio Analysis: Professional pitch detection algorithms
  • MIDI Standard: Standard MIDI file format (.mid)
  • File Support: MP3 audio files up to 50MB
  • Processing Time: Varies based on audio length and complexity
  • Output Quality: Standard MIDI events with velocity data

Frequently Asked Questions

How accurate is MP3 to MIDI conversion?
Accuracy depends heavily on the source audio. Solo instruments with clear pitch produce 70-90% accuracy, while complex music with multiple instruments may achieve 40-60% accuracy. Simple melodies and piano music typically convert better than full bands or heavily distorted audio.
What types of music work best for conversion?
Monophonic recordings (single notes) work best: solo piano, guitar melodies, vocal lines, or single instruments. Music with clear pitch, steady tempo, and minimal background noise produces the most accurate MIDI results. Complex orchestral or heavily distorted music is challenging to convert accurately.
Will the MIDI file sound exactly like the original MP3?
No, MIDI files contain only note data (pitch, timing, velocity) without audio timbres or effects. The MIDI will capture the melody and rhythm but will sound like basic synthesized instruments when played back. You'll need to assign instruments and adjust settings in your MIDI software.
Can I convert songs with vocals to MIDI?
Yes, but results vary significantly. Clear, isolated vocals without heavy effects can be converted to capture the melody line. However, lyrics are not included in MIDI files - only the pitch and timing of the vocal melody. Background music will complicate the conversion process.
How long does the conversion process take?
Processing time varies based on audio length and complexity. Simple 3-4 minute songs typically take 1-3 minutes to process. Longer or more complex audio files may take 5-10 minutes. The advanced pitch detection algorithms require significant processing time for accurate results.
What can I do with the converted MIDI file?
MIDI files can be edited in music software like Logic Pro, FL Studio, or GarageBand. You can change instruments, adjust timing, add harmonies, transpose keys, create sheet music, or use it as a starting point for new compositions. MIDI is widely supported across all music production software.