Polk Audio's new Signa S4 soundbar is the company's first entry into Dolby Atmos and undercuts most of the competition in price. Dolby Atmos is an object-based surround sound solution. Rather than placing sound in specific channels like traditional surround sound systems, Atmos places objects in a 3D world.
And surround sound audio has really expanded beyond just movies and TV over the past few years. Most of the major music streaming services now support surround or «spatial» audio in one form
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