| 摘要 |
Apparatus for automatically detecting the pitch of individual notes of music represented in analog form by an electrical signal. The apparatus includes an arrangement of band-pass filters, connected in parallel, for receiving the electrical signal and passing selected portions thereof which contain the frequencies of the well-tempered scale. According to the invention, means are provided for varying the sensitivity of the pitch detecting apparatus in dependence upon the loudness of the notes to be detected to thereby inhibit the detection of harmonics.
|
