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Precision Strobe Tuner

Precision Strobe Tuner 1

Precision Strobe Tuner 1

Precision Strobe Tuner

by Jim Campbell
Precision Strobe Tuner
Precision Strobe Tuner
Precision Strobe Tuner

What is it about?

Precision Strobe Tuner 1.64

Precision Strobe Tuner

App Details

Version
1.70
Rating
(28)
Size
2Mb
Genre
Music Education
Last updated
May 21, 2019
Release date
April 19, 2011
More info

App Screenshots

Precision Strobe Tuner screenshot-0
Precision Strobe Tuner screenshot-1
Precision Strobe Tuner screenshot-2
Precision Strobe Tuner screenshot-3

App Store Description

Precision Strobe Tuner 1.64

A General Purpose Chromatic Musical Instrument Tuner App with special Temperament and Piano Tuning Functions.

The PST combines a radial Spectrum Display with a classic Strobe Tuner and Note Dial for an ultimate visualization of pitch and tone. The Strobe Display is highly sensitive with response speed that is practically instantaneous and has long been the preferred tool for piano tuners and instrument technicians.

The central Spectrum Display shows the input spectrum wrapped around the Display, with each Octave drawn in a separate color. The Note Dial is marked like a clock with the twelve notes of the Scale. All overtones of the input are shown as peaks in the Spectrum Display pointing towards their corresponding Notes. The Fundamental Indicator Tic on the Spectrum Display shows the Note of the Fundamental along the Note Dial, with the color designating the Octave. Use the Spectrum Display for coarse adjustment by tuning the Fundamental to the center of the desired Note Indicator.

As the input approaches the desired Note, a Two Group pinwheel pattern becomes visible rotating in the Strobe Display. Fine tuning is accomplished by adjusting to stop rotation. The Strobe Display responds instantaneously to changes in pitch and is extremely sensitive. The outside Strobe Display works just like a classic rotating disk strobe tuner. The Two-Group pattern rotates CCW when the input is flat, and CW when sharp. When the rotation is stopped, the note is in tune.

The first screenshot shows the display tuning a Guitar Low E string. The Fundamental appears as an Orange peak in the Spectrum Display. This string rings bright, so the overtones are also dominant in the Display.

The second screenshot shows the display for an E 440 Tuning Fork with the Calibration Dial enabled and set. This Fork is 1.3 cent Flat.

The PST also includes a Programmable Temperament Function with 5 user definable banks. The third screenshot shows an example of a Temperament Bank set up to a typical Piano Stretch Curve. This can also be used for tuning alternate temperaments, pedal steel guitar setups, or special guitar intonation systems.

In addition, there are several Special Measurement Banks used for String Inharmonicity characterization and Piano Stretch Curve Calculation. Individual strings can be characterized by measuring the Fundamental and 2nd Harmonic separately. By careful selection of a few representative measurement points, a reasonable smooth fit Piano Stretch Curve can be generated. Any number of measurements up to C7 can be used.

The final screenshot shows the Input Signal Scope/Spectrum Display Page.

The Detailed Operation Manual can be viewed here:
www.precisionstrobe.com

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