Netflix is rolling out an update on the Android version of its app that promises to bring "studio-quality" sound to your daily TV or movie watching experience. The company is switching over to xHE-AAC or Extended High Efficiency AAC, which is a newer version HE-AAC that the company has been using so far. It was introduces back in 2012 by Fraunhofer IIS and was primarily designed for use in online streaming and broadcasting services due to its high compression ratio and efficiency, with bit-rates as low as 6kbps for mono and 12kbps for stereo, going up to 500kbps and beyond. It's also a...
Source: https://www.gsmarena.com/netflix_adopts_xheaac_variable_bitrate_audio_codec_on_android-news-47383.php