Tuning device for musical instruments and computer program for visualizing tuning status

摘要

A tuning device assists a worker in a tuning work on a musical instrument such as an upright piano; the tuning device firstly converts a tone to a series of audio data, and analyzes a series of audio data so as to compare an actual pitch of the tone with a target pitch of the tone; when a pitch difference is found, the existence of pitch difference is visualized as a moving light pattern, and the direction of pitch difference is further visualized as a light pattern; the worker acknowledges the present tuning status of the musical instrument through the tuning device so that the worker accurately quickly tunes the musical instrument.