摘要 |
PURPOSE:To enable to produce the tone signal easily, by reading out the address information from the tone control memory selectively in response to the control operation of the exchanger, and designating the address of the tone data memory. CONSTITUTION:In producing the tone signal in time sharing exchanger, the tone source data is sampled and digitized and written in the tone data memory 21 from external unit. Further, after the control information of the data is written in the tone control memory 26, the address information is selectively read out from the memory 26 in response to the control operation of the exchanger and the address of the memory 21 is designated. Thus, the tone source data is selectively read in to easily produce the tone signal. |