Your digital speakers/receiver will do all the decoding to give you full surround sound. What this does is tells both the software and soundcard to leave the audio from the DVD in compressed form and send it straight through the digital outputs. ![]() In your DVD software, select 'SPDIF' as the audio output method and 'SPDIF Pass-through' in your soundcard options. To go down this route, you must first have a set of speakers or a decoder that supports Dolby Digital. This is where your optical/coax connection is used. There are three ways to do this.ฤก) Pass the AC3/DTS signal to a external decoder. A decoder is required to extract the channels and send the sound to the correct speakers. ![]() ![]() This means that all 6 channels are compressed into a single stream of digital data. Movies on DVD often use encoded audio in the form of Dolby Digital (AC3) or DTS.
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