Convert your audio source directly to MIDI.
Just play an instrument or hum and turn the melody into an instrument of your choice.
Get your ideas out fast and easily!
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 (not only AU). These acoustic (or electric) instruments, or your voice, act as a MIDI controller.
A2M comes as an AU v3 plugin and as a standalone application (which is the AU host for this one plugin).
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.
The standalone version works with all MIDI-compatible applications, including GarageBand and Logic Pro.
The app sends MIDI events via the virtual MIDI port. The list of active and inactive MIDI ports is available in the application settings in the MIDI Settings → Outputs section.
A2M works (though imperfectly) as an AU plugin in Logic Pro (see user guide).
A2M does not work as an AU plugin in GarageBand.
▷ Audio input buffer size
The smaller the buffer, the higher the CPU load and the lower the latency.
A buffer less than 512 should only be set if you have a strong processor.
For A2M standalone applications, the buffer size is available in the application settings under Audio Settings → Buffer Size
▷ Pitch recognition method
A2M offers two popular algorithms
• Based on autocorrelation, the beat bars proprietary method
• FFT (with parabolic interpolation)
▷ Gate Threshold and Input Gain
A2M works best when it only recognizes sounds at an appropriate volume level.
In order to eliminate unnecessary background noises, select the appropriate parameters.
▷ Latency / Accuracy
2 dashes (default) – the best compromise between accuracy and latency.
The higher the accuracy, the more of the CPU’s capacity is used and the longer the latency (as opposed to the audio buffer size settings).
▷ Velocity Gain
It allows you to select the appropriate volume of the virtual instrument itself.
Known limitations in the current version:
• No polyphony
• No pitch bending
• macOS 11 Big Sur or later
A2M - Audio to MIDI AUv3
• Live conversion
• Two popular algorithms
• Latency under control
• Exceptionally accurate tracking
• Simple to set up and use
• Unique and innovative
Try an unconventional way of creating music.
It’s surprisingly easy!
Data Not Collected
The developer does not collect any data from this app.
Privacy practices may vary, for example, based on the features you use or your age. Learn More
- NILSON sp. z o. o.
- 827.4 KB
- Requires iOS 14.0 or later.
- Requires iPadOS 14.0 or later.
- iPod touch
- Requires iOS 14.0 or later.
- Requires macOS 11.0 or later.
- Age Rating
- © 2021 NILSON Ltd.
- In-App Purchases
- Remove Time Limit $9.99
With Family Sharing set up, up to six family members can use this app.