| 摘要 |
PROBLEM TO BE SOLVED: To provide a portable telephone having musical reference confirmation function so as to eliminate the necessity of carrying tuning materials for musical instruments. SOLUTION: The portable telephone is provided with a metronome function (a metronome function section 20) which provides the proper speed of a music by sound, a tuning fork function (an electronic tuning fork function section 30) which generates a reference sound for tuning and a tuning meter function (a tuning meter 40) which analyzes sounds being generated by a musical instrument, that are to be measured, to confirm the degree of tuning. |
