| 摘要 |
PURPOSE:To eliminate the deviation of phases between the channels of analog signals at the time of DA converting the digital signals of the plural channels. CONSTITUTION:The waveform data (the digital signals) for two of the L and R channels are outputted from a sound source 4. In a phase matching interpolation circuit 5, the waveform data of the R channel are outputted to a DA converter 20 as they are and the waveform data of the L channel are interpolated at a position shifted for 1/2 of one DAC cycle of the DA converter 20. The waveform data obtained by performing interpolation are outputted to the DA converter 20 by the time slot of the L channel. The waveform data of both channels are DA converted in a time-division manner in the DA converter 20. |
