The sound card is USB external X-FI5. 1, the sound system selected when installing the sound card is 5. 1 sound system (this is very important, if you choose 2. 0, I don't know what I can't do after I've been busy for a long time, then I connect the external sound card to my notebook with USB, connect the sound card with the power amplifier with optical cable, and play it with PowerDVD. Set the audio to SPDIF. Okay.
After many detours, I feel that DTS decoding plug-ins such as Ultimate Decoding, Perfect Decoding and Foobar2K can decode DTS signals, but the output signal may be AC3. Of course, just feeling that the estimation of DTS patent fees alone can make these free ones sweat for a while. . . Therefore, it is more acute to appreciate DTS or PowerDVD and WinDVD, which will cost a lot of money, otherwise it will be sold.