| 摘要 |
An automatically tuned musical instrument provides a means for keeping strings under tension in proper tune. It also provides a mechanism to simplify installing new strings on the instrument. The tuning system includes a magnitude comparator to eliminate crosstalk which can result in improperly tuning one string when receiving a tone from an adjacent string. The system tensions a string or a plurality of strings at fast speed to within a whole tone or their desired frequency and then fine tunes the strings to desired frequencies. The mechanism includes a guide canal for each string to guide the string into pinch rollers and a flexible conduit to guide the string onto a guide reel to provide an easy, sure way to install strings onto the instrument.
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