#Polyphonic tuner verification#

#Polyphonic tuner verification#

In such a conventional tuning device verification of correct tuning requires that each string is plucked separately. In order to tune an instrument like a guitar, which typically has six strings, each string must be plucked separately and the tuning must be adjusted until the deviation is sufficiently small. It is therefore important that the tuning device provides a user-friendly and appropriate output and works reliably and fast. Furthermore, the time to correct tuning of the instrument is often limited, as for instance in the break between songs in a performance. In many practical situations the musician does not hear the instrument while tuning, as this would be disturbing for an audience. If a polyphonic signal, such as two pitch frequencies simultaneously, is fed to a conventional tuning device the display will typically be blank, indicating that no valid input was detected. 7,288,709 by Chiba and US 2006/0185499A1 by D'Addario et al., all hereby incorporated by reference, can measure one pitch frequency at a time and display the frequency deviation between the input signal and a target frequency. The present invention relates to a tuning device for determining and displaying differences between a multitude of pitch frequencies or other characteristic frequencies of a musical instrument, such as a guitar, and a series of target frequencies.Ī conventional tuning device for musical instruments, such as disclosed in U.S. 14, 2009, the entire contents and substance of which are hereby incorporated in total by reference.FIELD OF THE INVENTION 61/233,933 entitled “POLYPHONIC TUNER” filed on Aug. This application claims the priority of U.S.