![]() ![]() HDMI ARC (Audio Return Channel) allows for "upstream" and "downstream" signals over a single HDMI connection between two ARC-capable A/V devices. Optical is limited to “vanilla” Dolby Digital and DTS, as it does not have the bandwidth to carry more advanced codecs like Dolby Digital Plus/EAC3, lossless audio codecs such as Dolby TrueHD, DTS-HD Master Audio, or more than two channels of PCM audio.ĭTS, AC3, PCM 2.0 / eAC3 + Atmos optional Optical cables (also known as S/PDIF or TOSLINK) can carry digital audio streams to an AV receiver/soundbar that can decode two channels of uncompressed lossless PCM audio or compressed 5.1 surround sound. IMPORTANT: a TVs built-in decoding capabilities are not to be confused with the TV audio passthrough capabilities (optical, ARC, eARC, RCA) However, Shield should have no trouble to detect those, and that will have very little to no impact about the actual sound quality anyway, so don't worry about it too much just be aware that this is normal to see if you check the Shield available audio output formats. To be noted: even though they might only have 2 speakers and thus, will only support stereo, recent TVs will often have built-in basic DTS/AC3/eAC3 decoding capabilities. Two speakers, stereo setup pretty straightforward. Let's take a look at the different possible setups. Theory crash course - You probably don't need everything, but do pay close attention to the general tids&bits and whatever connection you are using jumping to the best practices will not be enough to get you up to snuff. No stone will be left unturned, you hear me? This time I'm giving a go at the sound setup and settings. Here we go again I'm telling ya the time for half-assed explanations is over.
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