
A tone generator has a waveform memory which stores waveform data at least having a loop section defined by a loop start address and a loop end address for repetitive reading out. An address-generating circuit generates a readout address by which the waveform data is read out from the waveform memory and delivers the readout address to the waveform memory to read out the waveform data from the waveform memory. A bit mask circuit masks a predetermined range of more significant bits of the readout...











