| 摘要 |
A digital sound system suitable for a digital speaker device to directly convert analog sound by a circuit using a &Dgr;&Sgr; modulator and a mismatch shaping filter circuit to output a plurality of digital signals and a plurality of speakers driven by the plurality of digital signals. A digital speaker driving device includes a &Dgr;&Sgr; modulator, a post filter, s driving circuits, and a power supply circuit to supply power to the &Dgr;&Sgr; modulator, the post filter and the s driving elements, and the s driving circuits are adapted to s digital signal terminals. |
