| 摘要 |
The present invention relates to a signal processing device, a signal processing method, and a program that make it possible to switch, using a simple configuration, a plurality of DSD signals having different sampling frequencies. An acquisition unit acquires a digital audio signal having a predetermined sampling frequency, selected from a plurality of digital audio signals obtained by delta-sigma modulation using a plurality of sampling frequencies in a single audio signal. An interpolation unit subjects the acquired digital audio signal to a pre-interpolation process when the sampling frequency of the acquired digital audio signal is a frequency that is lower than the operation clock of the delta-sigma demodulator. The present invention can be used in, e.g., signal processing devices. |
