| 摘要 |
PURPOSE:To provide the crosstalk detector which digitally detects the crosstalks between adjacent string vibration pickups. CONSTITUTION:A CPU 6 investigates the relations between the digital signals (for example, power ratio, amplitude ratio, phase correlation and pitch relation) of the adjacent string pickups (for example, 1A and 1B) from an A/D converter 4 and discriminates whether the output of the string pickups is by the crosstalks (by the vibrations of the adjacent strings) or not. |
