January 12, 2021 — Erlangen, Germany — Fraunhofer IIS, major developer of the xHE-AAC audio codec, in the present day introduced that Netflix is now utilizing the xHE-AAC audio codec. Netflix has licensed Fraunhofer’s high-quality xHE-AAC software program and is utilizing it to encode its complete catalog of TV collection, documentaries and have movies throughout a wide range of genres and languages.
One of many key options of xHE-AAC for Netflix is the obligatory MPEG-D loudness and dynamic vary management metadata. It permits service suppliers to embed content- and endpoint-specific metadata within the audio bit stream for transmission which might then be used on the playback facet to realize a constant loudness degree and optimum dynamic vary for any playback gadget and setting. In a front room setting, a movie will be loved with the total dynamic vary, the way in which that the combination was meant. The identical movie on a cell gadget in a loud setting may name for loudness administration to be able to be loved with intelligible dialog. With MPEG-D metadata, a single stream meets the wants of each of those use circumstances — and every part in between.
Additionally of curiosity is xHE-AAC’s improved coding effectivity at low bit charges, its capacity to scale as much as perceptually-lossless high quality at excessive bit charges, and the built-in seamless bit charge switching. This permits Netflix to at all times stream with an audio bit charge that matches the at present accessible Web pace, reaching very prime quality for high-bandwidth connections, and minimizing rebuffers throughout community congestion. “Our xHE-AAC audio codec has been designed from the bottom as much as enhance the patron expertise for leisure content material particularly in environments with restricted Web bandwidth,” mentioned Bernhard Grill, Director of Fraunhofer IIS. “With Netflix because the chief in video streaming worldwide, we couldn’t have discovered a greater launch accomplice for xHE-AAC on this market section.”
xHE-AAC is the most recent member of the MPEG AAC audio codec household. Fraunhofer performed a considerable position within the improvement of xHE-AAC and the MPEG-D DRC commonplace. xHE-AAC is natively supported within the newest Apple, Android and Amazon working programs and merchandise, and Fraunhofer’s xHE-AAC implementation has lately been licensed to Microsoft. Skilled xHE-AAC encoder software program is out there instantly from Fraunhofer IIS or its streaming gear companions. xHE-AAC and MPEG-D DRC patents are included within the AAC patent licensing program administered by VIA Licensing at no extra value.