Ivory Pro is a professional hybrid DSP piano tuner for macOS, iOS, and iPadOS. Featuring Railsback stretch tuning curves, tailored physical instrument profiles, and sub-cent precision.
Ditch the generic chromatic tuners. Harness an audio-engineering pipeline designed specifically for the unique physical properties of pianos.
Plug-and-play for Focusrite Scarlett, ZOOM iQ7, and any class-compliant USB audio device. Live mic info shows device name, sample rate, and channels. Adjustable 1×–10× software gain ensures optimal signal from professional interfaces.
Measure overtones on reference notes (A1, A3, A5, C6). Our step-by-step wizard automatically builds a custom Railsback cents offset curve using professional 6:3 bass and 4:2 treble octave-harmonic matching models.
Create, load, duplicate, edit, or delete custom client profiles. Adjust Railsback stretch coefficients dynamically from 1.0 to 4.0 and save all technician notes directly to the device database.
Achieve the ultimate precision with a beautifully rendered, multi-band concentric strobe ring that dynamically rotates based on your exact phase offset.
A lightning-fast 60fps FFT wave graph lets you visually inspect the harmonic partials of your strings to spot false beats and analyze overtone strength.
Instantly switch to perfectly calculated Werckmeister III, Kirnberger III, or Meantone. Plus, a built-in Overpull calculator to perfectly compensate for tension drops.
Auto-calibrate the A4 tuning reference (436–444 Hz) by listening to an external sustained tone or tuning fork. Filters out frequency outliers using a median-based estimator for maximum precision.
Direct manual control over physical needle response damping, response speeds, noise gate thresholds, and FFT smoothing window sizes.
Employs McLeod Pitch Method (NSDF) with sub-harmonic filtering for low keys (A0-B0) and linear-magnitude FFT interpolation for the treble register (up to C8).
Synthesizes mechanical, wooden click, clock, and rimshot soundscapes with sample-accurate scheduling alongside classic, high-fidelity visual pendulum physics.
A stunning, glassmorphic dark-mode environment optimized for dimly-lit studios, stages, and piano soundboard compartments with tactile pitch-lock haptic feedback.
Low frequencies in a piano are highly transient and have extremely weak fundamental frequencies, whereas high frequencies are short and decay rapidly. Traditional tuners fail at both extremes. Ivory Pro handles them with state-of-the-art DSP:
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treble tracking errors are mathematically resolved.Automated real-time handoff between NSDF and linear-interpolated FFT based on frequency thresholds.