| 摘要 |
The invention relates to a device for automatically tuning a stringed instrument ( 1 ), particularly a guitar, comprising: a detecting device ( 12 ) for detecting a note produced by strumming a string ( 6 a 6 f) and for outputting a digital signal corresponding to the detected note; a memory device for storing default digital signals corresponding to a desired note; a comparator for comparing the digital signal output by the detecting device ( 12 ) with a digital signal, which is stored in the memory device and which corresponds to the desired note; an adjusting device for altering the tension of the strings ( 6 a 6 f); at least one drive ( 11 ) for driving the adjusting device ( 7 ), and; a controller ( 10 ), which is connected to the comparator and which controls the at least one drive ( 11 ) via a bus line based on a difference between the signals representing the produced note and the desired note, this difference being determined in the comparator. The inventive device is improved compared to that of the prior art by virtue of the fact that it can be integrated in an instrument, particularly a guitar, while having a minimal influence upon the sound characteristics and with as few as possible elements that are also small. To this end, the controller ( 10 ) and the at least one drive ( 11 ) are placed inside the stringed instrument ( 1 ) while being situated, when viewing in a longitudinal of the strings ( 6 a 6 f), on opposite sides of the strings ( 6 a 6 f), and the bus line is led between the controller ( 10 ) and the at least one drive while spanning the length of the strings. The invention also relates to a method for automatically tuning a stringed instrument ( 1 ).
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