For context, LDAC is one of the few wireless audio codecs stamped Hi-Res by the Japan Audio Society and its encoder is open source since Android 8, so you can see just how long Windows is sleeping on this. I’m excited about the incoming next gen called LC3plus, my next pair is definitely gonna have that.

  • marmarama@lemmy.world
    link
    fedilink
    arrow-up
    2
    ·
    edit-2
    1 year ago

    It is worse than uncompressed, but 990Kbps LDAC is the closest codec to totally transparent I’ve heard for Bluetooth audio. AptX HD is nearly as good to my ears, and is better than 660Kbps LDAC. The differences are very small though, especially when compared with the differences on the analog side, e.g. the amp, and particularly the headphone design.

    Apple side-steps the problem by, at least when you’re listening to Apple Music, simply sending the AAC stream as-is to the headphones and has them decode the audio. I don’t know why that isn’t a more common approach.

    I’m still somewhat bemused that we’re talking about Bluetooth codecs at all. It surely can’t be that difficult technically to get 1.5Mbps actual throughput on Bluetooth and simply send raw 16-bit/44.1Khz PCM. 2.4Ghz WiFi is capable of hundreds of times that speed. Bluetooth has been stuck at the same speeds for decades.

    • LaggyKar@programming.dev
      link
      fedilink
      English
      arrow-up
      1
      ·
      1 year ago

      Apple side-steps the problem by, at least when you’re listening to Apple Music, simply sending the AAC stream as-is to the headphones and has them decode the audio.

      Do they actually though? Everything I can find says that’s just a myth. If it can play multiple things at the same time, they can’t possibly do that.

    • drwankingstein@lemmy.dbzer0.com
      link
      fedilink
      arrow-up
      1
      ·
      edit-2
      1 year ago

      this isnt even correct, AAC beats 990kbps LDAC, aptx-HD and SBC-XQ matches or beats 660kbps (which is normal listening usecase).

      however even after all of that, SBC-XQ, AAC, LC3Plus are all audibly transparent to the vast majority of people at normal listening bitrates with the major difference being vendor tuning