Convolver

Convolver is a convolution reverb and impulse response processor that stands out for its flexibility and depth within Kilohearts' modular ecosystem. Unlike traditional algorithmic reverbs, convolution allows you to capture and apply the acoustic characteristics of any space or device by processing audio through impulse responses. While church halls and bathroom ambiences are the classic starting point, the real power lies in loading arbitrary samples to emulate amp cabinets, distinctive filters, creative delays, and experimental textures.

The interface balances simplicity with creative control. Start and End parameters let you isolate specific portions of an IR, while Fade In and Fade Out smooth transitions and eliminate clicks. Stretch adjusts the IR's length and pitch independently, opening possibilities for rhythmic effects or correcting timing mismatches. Reverse inverts the impulse response entirely, yielding unpredictable results that can yield distinctive character. A Delay parameter accommodates pre-delay timing in milliseconds or tempo-synced fractions, while Feedback reintroduces processed output into the convolution engine for complex, evolving textures. Tone controls brightness, and the Mix knob balances dry and wet signals.

The included library of over 300 factory IRs provides immediate sonic options without requiring deep exploration of external samples. However, the ability to import any audio file makes this tool genuinely expansive. Convolver excels for engineers seeking IR-based processing without dedicating a full plugin slot to a traditional reverb, particularly those working within Kilohearts' snapin hosts like Multipass or Phase Plant. It's equally suited for sound designers wanting unconventional textures and producers committed to exploring convolution's full potential beyond standard reverb applications.