Dolby Digital
Dolby Digital is a digital audio encoding system designed for use on DVDs, Blu-ray, and Ultra HD Blu-ray Discs, TV broadcast, and most commercial streaming content. This format provides efficient transfer for audio signals that may have one, or more channels, that are decoded via the Enclave CineHub, which transmits the decoded channels wirelessly to the CineHome speakers.
All DVD, Blu-ray, and Ultra HD Blu-ray Disc players and streaming appliances (Apple TV, Amazon Firestick, etc.) pass Dolby Digital signals via a technique referred to as bitstream. The Enclave CineHub supports Dolby Digital via it's ARC, eARC and optical based connections.
Dolby Digital Plus
Dolby Digital Plus is a higher quality, high definition digital-based surround sound format.
Dolby Digital Plus is one of the several audio formats that can be used in the Blu-ray Disc format. Dolby Digital Plus is supported by the Enclave Audio CineHub on both ARC and eARC connection. Dolby Digital Plus is NOT supported via optical connection.
DTS: DIGITAL SURROUND
DTS (originally Digital Theater Systems) was founded in 1993 to compete with Dolby Labs for surround sound supremacy. The Enclave CineHub supports DTS Digital Surround via it's ARC, eARC and optical ports.