Strobe Tuner
A real-time strobe disc driven directly by measured phase.
How a strobe tuner works
A strobe tuner compares the phase of an incoming signal against a reference oscillator. When the signal is exactly in tune, the strobe disc appears to stand still; when it is flat or sharp, the disc rotates at a speed proportional to the pitch error. Traditional mechanical strobe tuners did this with a painted rotor and a flashing lamp. The visual feedback is instantaneous and continuous; you see the drift as it happens, rather than watching a needle settle.
How Calcophony simulates a strobe
The strobe disc in Calcophony is a real strobe simulation rendered by a native GPU module. The disc rotation responds directly to measured phase, following the same principle as a mechanical strobe. This direct phase response helps string players tune within tenths of a cent and shows the small deviations used by historical temperaments.
Features
- Chromatic and instrument modes: detect any pitch, or lock to a specific instrument's string set.
- Instrument presets: guitar, bass, violin, viola, cello, and more, with built-in alternate tunings.
- Historical temperaments: Werckmeister III, Kirnberger III, Vallotti, Young I, quarter-comma meantone, and Pythagorean. Offsets are in cents from 12-TET.
- Custom reference pitch: A4 from 392 Hz to 494 Hz.
- Semitone transposition: shift target strings up or down for alternate setups and down-tuned instruments.
- Reference tone playback: audition the target pitch for ear-tuning against a drone.
- Two display modes: the strobe disc for fine drift, or a classic needle meter for quick visual reference.
Who this is for
The Strobe Tuner is built for players and technicians who want strobe-level precision without carrying dedicated hardware. Guitarists and bassists use it for fine intonation work, string players already familiar with high-end strobe tuners get a familiar workflow, and early-music ensembles tune continuo groups in Werckmeister III or Kirnberger. Players working in alternate or down-tuned setups can shift target strings without rebuilding the instrument preset, and anyone studying temperaments can hear and see the difference between a just major third and an equal-tempered one.
Related modules
Free to download, with a 7-day trial of every Pro module. iPhone, iPad, and Apple Silicon Mac.