Patent ID: 8666696

Claim:
A reed testing device for a single-reed instrument comprising: a displacement sensor which detects rigidity distribution characteristics of a reed in a width direction thereof with respect to both a front and a back surfaces of the reed; a characteristic graph creation unit which creates characteristic graphs showing variation in the rigidity distribution characteristics of the reed with respect to the front and the back surfaces of the reed based on outputs from said displacement sensor; a characteristic graph storing unit which stores the characteristic graphs of the front and the back surfaces created by said characteristic graph creation unit; a comparative calculation unit which creates a graph by reversing left and right of the characteristic graph of the back surface of the reed created by said characteristic graph creation unit with respect to a longitudinal center line of the reed; and a display unit which displays the characteristic graph of the front surface created by said characteristic graph creation unit and the reversed characteristic graph of the back surface of the reed created in said comparative calculation unit on one screen, wherein: said comparative calculation unit superimposes the characteristic graphs obtained with respect to the front and the back surfaces of the reed with the graphs obtained by reversing left and right of said characteristic graphs, quantitatively determines differences between the created characteristic graphs and the reversed characteristic graphs, and outputs an index regarding a right and left balance of the reed.