GrainProc is a real-time granular synthesizer that empowers users to craft unique sounds and musical textures by manipulating voice, instruments, or any AudioBus input. With two grain engines operating simultaneously, users can overlay sounds for intricate textures, ideal for solo performances.

The program boasts features like dual granular synthesizers, a waveform display for precise sound source manipulation, sliders for dry and wet volume, feedback level, and grain density control. Additionally, visual level monitors help track dry, wet, and feedback levels, making it accessible even for live performances. While unconventional, GrainProc is user-friendly enough to be operated with your feet, as some have demonstrated in public performances.