A2M (Audio to MIDI) is an open-source Windows application for converting piano recordings into editable MIDI files. It estimates notes, timing, velocity, sustain, and soft-pedal events, with the best results obtained from clean solo piano recordings.

Choose an audio file, select CPU or a CUDA/DirectML mode, and click Convert to MIDI. The generated file is saved to Downloads/A2M by default, or to a custom folder selected in Settings.

Audio analysis is performed locally. Source recordings are not uploaded, and no account is required. Network access may be used for requested downloads and update checks when enabled.

CPU processing is available by default. Optional GPU acceleration can reduce processing time on compatible hardware.

Website: https://www.justagwas.com/projects/a2m
GitHub: https://github.com/Justagwas/A2M
Docs: https://github.com/Justagwas/A2M/wiki

VirusTotal:
https://www.virustotal.com/gui/file/898c575338ee010597d1224dc5da8f3db9f35191f5ed1c91752f52d55b1211c

Features

  • Audio recording to MIDI conversion
  • Local-only audio processing
  • One-click conversion workflow
  • Automatic output to Downloads/A2M
  • Optional CUDA and DirectML GPU acceleration
  • Common audio format support
  • Open-source software

Project Samples

Project Activity

See All Activity >

License

GNU General Public License version 3.0 (GPLv3)

Follow A2M — Audio to MIDI

A2M — Audio to MIDI Web Site

Other Useful Business Software
$300 Free Credits for Your Google Cloud Projects Icon
$300 Free Credits for Your Google Cloud Projects

Start building on Google Cloud with $300 in free credits. No commitment, no credit card required until you're ready to scale.

Launch your next project with $300 in free Google Cloud credits—no strings attached. Test, build, and deploy without risk. Use your credits across the entire Google Cloud platform to find what works best for your needs. After your credits are used, continue with always-free tier services. Only pay when you're ready to scale. Sign up in minutes and start exploring.
Start Free Trial
Rate This Project
Login To Rate This Project

User Reviews

Be the first to post a review of A2M — Audio to MIDI!

Additional Project Details

Operating Systems

Windows

Languages

English

Intended Audience

End Users/Desktop

User Interface

Project is a user interface (UI) system

Programming Language

Python

Related Categories

Python Audio Conversion Software, Python MIDI Software

Registered

2026-01-30