Add to that the growing presence of mobile devices and smart Internet tablets, and you have a growing need for a surround sound format that won't 'break the bank' when it comes to bandwidth.ĭolby Digital Plus. ![]() As HDMI started supporting more and more resolution (adding 3D capabilities, audio return channel and networking support, the bandwidth left for surround sound was problematic in some scenarios. ![]() ![]() Dolby Digital Plus was created to solve the issue of limited bandwidth in a world where surround sound was expanding, but HDMI and other technologies were quickly taking up all available bandwidth in cabling and transmission technologies. Dolby has put out a few new surround formats since Dolby Pro Logic, but Dolby Digital Plus (also called Enhanced AC-3 or E-AC-3) might be one of the most misunderstood.
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