Computerized music apparatus processing waveform to create sound effect

摘要

A storage (103) is provided for storing a plurality of waveforms corresponding to different musical tones. Tapping pads (107) are provided for designating at least one of the stored waveforms to command reproduction of a corresponding one of the musical tones. A panel switch (109) is operable by a user for switching the reproduction of the musical tone between a normal mode and an optional mode. A CPU (101) is allotted with relatively high performance under the normal mode for concurrently reading out a number of the designated waveforms from the storage (103) according to a program so as to concurrently reproduce the number of the corresponding musical tones. Otherwise, the CPU (101) is allotted with relatively low performance under the optional mode such that the number of the musical tones concurrently reproduced under the optional mode is reduced as compared to that under the normal mode while the CPU (101) is allotted with additional performance for digitally processing the designated waveform to impart a scratch effect to the reproduced musical tone. The scratch effect may be also applied to a new waveform inputted from an external source (111) in real time. <IMAGE>