Abstract: A read/write control circuit for a memory uses a read/write judging circuit which receives read and write request signals and a directional signal indicating whether a sequence of sound data inputted into the memory is in forward (normal) sequence or reversed sequence. The read/write judging circuit refers to the directional signal when both the read and write request signals simultaneously become active such that the read/write judge circuit gives priorty to a write operation in the memory when the sequence is normal by asserting a write enable signal and gives priorty to a read operation in the memory when the sequence is reversed by asserting a read enable signal.