Choir Boy is a multi-voice pitch shifting and ensemble effect designed for Windows. It takes a single audio input, mono or stereo, and generates three additional voices that enrich the original signal. This plug-in is ideal for enhancing vocals, solo instruments, and polyphonic sounds by adding depth and harmonic complexity. Each generated voice can be customized in pitch, allowing for creative layering and harmonization.

The plug-in features a high-quality pitch shifting algorithm that maintains audio clarity while producing natural-sounding harmonies. Users can control each additional voice through MIDI or host automation, offering flexible performance options. Choir Boy supports both fixed and dynamic pitch shift modes, enabling users to create static harmonies or respond dynamically to MIDI input for chordal generation.

With stereo or mono processing, Choir Boy adapts to various mixing scenarios, providing rich spatial effects. It includes preset configurations for quick setup, latency compensation, and is fully compliant with plugin delay compensation standards. This makes it a reliable tool for enhancing tracks without sacrificing timing or workflow efficiency.