beat bars has released A2M real time Audio to MIDI converter.
Here's what they say:
A2M detects the pitch of the audio and converts it into the corresponding MIDI notes in real time. Thanks to this, you can play, e.g., the guitar, saxophone, or even sing, and simultaneously trigger sounds in virtual instruments (AU, VST). These acoustic (or electric) instruments, or voice, act as a MIDI controller.
The A2M is quite an unusual Audio Unit – it is both an audio effect and a MIDI effect. Due to its characteristics, it is something in between. On the one hand, it analyzes the input sound, just like any audio effect. On the other hand, it generates output MIDI events, just like any MIDI effect.
A2M comes as an AUv3 plugin and as a standalone application, for iPhone, iPad and Mac. The standalone version works with all MIDI-compatible applications, including GarageBand (iOS and macOS) and Logic Pro. The app sends MIDI events via the virtual MIDI port.
Price: $9.99 from the App Store. A free time limit removed (IAP) trial is available.
- macOS 11 Big Sur or later.
- iOS 14 or later.
A2M User Guide: Everything you need to know about the A2M app
Watch how it works: A2M Audio to MIDI AUv3 - Guitar to Moog