DIGITAL TONE GENERATOR FOR TRANSMISSION OF PLURAL SOUNDS

摘要

PURPOSE:To attain transmission of plural sounds at the same channel by using a table data read-out counter and changing the sound transmitted every fixed cycle. CONSTITUTION:A table read-out counter 25 designates the table numbers of a combined memory element 22 from table ''0'' to table (n) every fixed time. Thus the table numbers are designated successively and every fixed time, and the combination data of the tone and the interval of each number table is sent to a selection circuit 29 from the element 22 by a combination data read counter 26. The circuit 29 selects the desired interval data by the combination data read out of the element 22 and at the same time selects the desired one of those tone data stored in a buffer memory 28 to output it to outside. Thus it is possible to change the sound to be transmitted every fixed time even with the same channel.