| 摘要 |
PURPOSE:To execute the musical performance which abounds in the musical property by detecting a musical scale sound by pitch-extracting an inputted acoustic signal, stopping the sounding and varying a tone color to be sounded, based on its range and level with respect to a detected musical sound. CONSTITUTION:One or plural musical scale sounds are detected by executing a digital filtering processing from an input acoustic signal with a signal processing means and a musical scale detecting means, the detected musical scale sound is compared with a prescribed reference compass by compass discriminating means 25, 21, and it is discriminated which musical scale sound of which compass the detected musical scale sound belongs to. Subsequently, it is compared with a reference level by level detecting means 24, 21, and it is detected which musical scale level each detected musical scale sound belongs to, and based on the compass of this musical scale sound and its level, arbitrary tone color data is given to the detected musical scale sound, which is outputted to a musical tone generating means 9 together with the given tone color data. The musical tone generating means 9 sounds the inputted musical scale sound in a designated tone color. |
