With this software we do not aim to compete with high-end tuning devices and professional aural tuners, rather we would like to demonstrate that a single extremely simple formula can generate an acceptable tuning. piano tuners, many musicians are still convinced that electronic tuning.
Now we present a software which allows everyone to evaluate this new tuning method. Tuning musical instruments in equal temperament by ear used to be a challenging. A first test with real data led to the surprising result that a simple entropy-based iteration algorithm produces a reasonably-looking tuning curve. Since entropy is a measure of disorder, we expect the entropy of a well-tuned piano to be lower than the entropy of an instrument out of tune. Electric piano repair and maintenance is generally done by electronics technicians. To tune the entire piano you will need to buy an upgrade through an in-app purchase. The 'free' version of this app is primarily for evaluation, and it only allows you to tune notes on the piano between C3 and C5. The authors of the software, Christoph Wick and Haye Hinrichsen explain: “the idea behind entropy-based tuning is very simple. Electric pianos do not need regular tuning like an acoustic piano does. PianoMeter is a piano tuning app that will transform your device into a professional quality electronic tuning aid. In fact, the art of piano construction and tuning is to compensate these effects by putting the instrument slightly out of the mathematical tune. Piano tuning has always been a very complex matter, because of the so-called inharmonicity, a physical effect caused by the stiffness of the steel strings. If you don’t have the tools or experience, you might be better off hiring a professional to tune your piano. For example, you’ll need a piano tuning lever, tips, electronic chromatic tuner and mutes.
The software runs on any laptop (Windows, iOS or Linux) and works in three steps: recording of all piano keys calculation of the entropy-optimized tune electronically assisted manual tuning of the piano. Tuning a piano can be difficult if you haven’t done it before and don’t have the correct tools.
It is called Entropy Piano Tuner (EPT) and is based on the calculation of the entropia between the frequency of each note of the piano. A new piano tuning software has been developed and launched by the Hochschule für Musik Würzburg, Germany.