3 Replies
      Latest reply on Feb 18, 2016 8:23 AM by TidBits
      Dvyz Level 1 Level 1 (10 points)

        2.4 You SHOULD NOT use HE-AAC if your audio bit rate is above 64 kb/s.

        I saw this requirement in the HLS Authoring Specification for Apple TV.

        And in the section 2.8, it says AAC is recommended upto 160 kb/s

        Does that mean that we can use LC-AAC or is it a typo or something?


        Bit rate recommendationsAudio channelsFormatTotal (kb/s)2.0 (stereo)

        AAC

        32 to 160

        5.1 (surround)

        Dolby Digital

        384

        5.1 (surround)

        Dolby Digital Plus

        192

        7.1 (surround)

        Dolby Digital Plus

        256

         

        https://developer.apple.com/library/tvos/documentation/General/Reference/HLSAuthoringSpec/Requirements.html#//apple_ref/doc/uid/TP40016596-CH2-SW1