Is Dolby AC-4 more complex to encode than Dolby Digital or Dolby Digital Plus?
Modified on: Mon, Nov 6, 2017 at 1:55 PM
Because Dolby AC-4 can support a new range of complex use-cases, the encoding process can be more computationally expense. However, when comparing similar use cases, for example 5.1 channel-based encoding, the increase in computational load is modest. Depending on the processor employed, the increase is somewhere in the region of 10-50% compared with encoding Dolby Digital Plus. This means that existing equipment supporting Dolby Digital Plus professional encoding can often be upgraded, in software, to support Dolby AC-4 encoding.
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