NFM – AUv3: FM Synth is an intuitive FM synthesiser designed for music creators. It features a streamlined interface, making it easy to produce sounds. This app works as an Audio Unit Extension, also known as an AUv3 plug-in, which means you can use it within various host applications like AUM, Cubasis, GarageBand, and Logic Pro.

While NFM is currently in maintenance mode and only receiving critical bug fixes, you can explore more flexible and actively developed alternatives like Mela. Mela offers many of the same features as NFM but in modular components that are updated regularly with new tools.

NFM includes six stereo operators and a fully customisable FM algorithm. You can choose from different types of oscillators, including sinusoid oscillators, noise oscillators, and fixed frequency oscillators. This variety allows you to create unique sounds tailored to your music style.

You can also adjust envelope parameters to control how sound evolves over time, such as adjustable level, time, and curve parameters. Moreover, NFM allows for modulated operator amplitude, which can be influenced by stereo LFO modulation or based on key or velocity. This flexibility helps create dynamic sounds that respond to how you play.

The app comes with various built-in effects, including distortion effects, delay effects, and flanger effects. These tools help add depth and character to your music. Whether you want a monophonic voice mode for single notes, a polyphonic voice mode for chords, or other settings like legato and glide voice modes, NFM has you covered.

For those who like organizing their sounds, NFM features a preset management system. This allows you to import and export presets easily, making it simple to save and share your custom settings. It even includes a numeric pad for entering parameter values precisely, ensuring you can make exact adjustments when crafting your sounds.

Overall, NFM – AUv3: FM Synth is a powerful and user-friendly tool for musicians looking to explore FM synthesis. Its features and flexibility allow for creative experimentation while fitting seamlessly into popular music production environments.