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Piano Doctor - A Piano Tuner

Name: Piano Doctor - A Piano Tuner
Availability: InStock
Rating: 1 (1 reviews)

Master the challenge of low-note tuning with advanced harmonic band detection and real-time spectrum analysis designed for serious musicians and technicians.

Key Figures

Downloads

100

User Rating

1.0/5

Total Ratings

Publisher

Jongseung Park

Achieve Concert-Grade Precision

Professional-grade frequency analysis engineered for technicians and DIY enthusiasts who demand scientific accuracy across all 88 keys.

Full-Range Harmonic Tracking

Tune deep bass strings with ease. Our algorithm analyzes up to seven harmonic bands to detect ultra-low frequencies like A0 that standard microphones miss.

Dual-Gauge Visual Feedback

Gain total confidence in your tuning. Use dual gauges and real-time spectrum viewers to monitor tone stability and frequency spreads simultaneously.

The following screenshots and description are sourced directly from the app's official store listing and are the property of the app developer.

App Store

Screenshots

Piano Doctor - A Piano Tuner - Piano tuning app interface showing fundamental and harmonic frequency gauges for note A4 — Piano tuning app interface showing fundamental and harmonic frequency gauges for note A4

Piano Doctor - A Piano Tuner - Interface of Piano Doctor app displaying fundamental and harmonic tuning gauges with pitch selection — Interface of Piano Doctor app displaying fundamental and harmonic tuning gauges with pitch selection

Piano Doctor - A Piano Tuner - Professional piano tuner app interface with fundamental and harmonic frequency gauges — Professional piano tuner app interface with fundamental and harmonic frequency gauges

Piano Doctor - A Piano Tuner - Interface of Piano Doctor app showing fundamental and harmonic gauges for precise piano tuning. — Interface of Piano Doctor app showing fundamental and harmonic gauges for precise piano tuning.

Piano Doctor - A Piano Tuner - Piano tuning app interface showing fundamental and harmonic gauges and spectrum viewers — Piano tuning app interface showing fundamental and harmonic gauges and spectrum viewers

Piano Doctor - A Piano Tuner - Manual screen of the Piano Doctor app displaying sections for Introduction Terminology and Getting Started — Manual screen of the Piano Doctor app displaying sections for Introduction Terminology and Getting Started

Piano Doctor - A Piano Tuner - Introduction screen of the Piano Doctor app manual explaining frequency detection for piano tuning — Introduction screen of the Piano Doctor app manual explaining frequency detection for piano tuning

Piano Doctor - A Piano Tuner - A diagram explaining the user interface components of the Piano Doctor app including gauges and spectrum viewers — A diagram explaining the user interface components of the Piano Doctor app including gauges and spectrum viewers

Piano Doctor - A Piano Tuner - A screenshot of the Getting Started page in the Piano Doctor app showing tuning instructions and gauge examples. — A screenshot of the Getting Started page in the Piano Doctor app showing tuning instructions and gauge examples.

Piano Doctor - A Piano Tuner - Instructional manual page for the Piano Doctor app explaining presets and self-test features with tuning gauges. — Instructional manual page for the Piano Doctor app explaining presets and self-test features with tuning gauges.

Description

This app analyzes piano sounds. It detects the frequencies in the sound and estimates how far the sound's tone is away from the target tone. While detecting the middle and higher tones of a piano can be done with little difficulty, detecting lower tones such as A0 (27.5Hz) raises a challenge. This is because most mobile devices' microphones cannot pick up such low tones. To overcome the difficulty, this app looks at two bands of frequencies: a fundamental band and a harmonic band. The fundamental band is the frequency range between -50 cents and +50 cents centered at the target frequency. Harmonic bands are the frequency bands where the frequencies are integer multiples of the fundamental band. This app examines 6 harmonic bands (from the second to the seventh) and selects the best one automatically. Measuring the fundamental band allows users to detect middle and higher tones, while measuring the harmonic band allows users to detect lower tones. By measuring the harmonic band as well as the fundamental band, this app can detect the entire range of piano tones from A0 to C8. To graphically show the detected tones, two gauges are provided: one for the fundamental tone and another for the harmonic tone. Two spectrum viewers are also provided alongside the corresponding gauges. While gauges are good at showing peak tones, spectrum viewers are showing frequency spreads in two-dimensional shapes. Spectrums help identify which band's measurement is stabilized and ready to be read. Buttons are used to select target pitch and octave quickly and randomly. Preset buttons are available for 7 preselected tones for easy-tone-selection and self-test. The preset buttons can also generate their corresponding tones through the device's speaker if they are double-clicked. This provides a self-test feature: with the self-generated tone on and the speaker at the proper volume, at least one of the gauges should report the precise tone that is being generated.