Phaser is an audio effect that filters the input signal to create a dynamic series of moving peaks and troughs in the sound spectrum. This modulation produces the characteristic swirling and sweeping effect associated with phasers, transforming phase shifts into a unique sonic texture. Users can adjust parameters such as order, cutoff, depth, rate, spread, and mix, allowing precise control over the intensity and movement of the effect. The order setting increases the number of filters, enhancing the depth of the phasing, while the cutoff and modulation controls shape how the peaks and troughs move through the audio spectrum.

Phaser features a clean and resizable interface designed for ease of use across various screen sizes, including touchscreens, making it suitable for live performance settings. The mix control enables blending between the dry and effected signals, offering flexibility to preserve the original tone or fully immerse it in the phasing effect. Additionally, the spread function introduces a stereo phase offset, enriching the stereo field with a widening sensation. A built-in settings panel allows users to manage presets efficiently, while the enable/disable checkbox provides quick bypass functionality.

While Phaser works effectively as a standalone effect, it is especially powerful when integrated into larger modular environments offered by Kilohearts, such as Snap Heap and Multipass. These hosts leverage Phaser alongside other snapins for innovative sound design and complex effect chains. Phaser is also available as a Rack Extension for Reason, expanding its accessibility to users within that platform. This makes Phaser a flexible tool for producers and performers looking to add rich, evolving movement to their audio.