KS Chromatic Tuner AU is a precise chromatic scale tuner designed for use as an Audio Units plug-in. It supports tuning across all 12 notes in the chromatic scale, providing accurate pitch detection and calibration for a wide range of instruments. The tuner covers a frequency range from A0 (27.5Hz) up to C8 (4186.0Hz), making it suitable for both low and high-pitched instruments.

This tuner offers multiple temperament options including Equal, Kellner, Kirnberger III, Meantone, Pythagorean, Vallotti, Werckmeister III, and Young II, allowing users to select the tuning system that best fits their musical style or instrument. It displays tuning information in both cents and hertz, facilitating precise adjustments and fine-tuning during performance or recording sessions.

With an accuracy of plus or minus one cent and a calibration range from 349.0 to 499.9Hz adjustable in 0.1Hz steps, KS Chromatic Tuner AU ensures reliable and detailed pitch measurements. Its flexible calibration and extensive temperament options make it an essential tool for musicians and producers seeking exact tuning control within their digital audio workstations.