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bradcstevens/change-codec.md

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Created February 27, 2024 02:09
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Enable High Quality mode on your headphones (Updated for macOS Catalina)
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change-codec.md

If you're using a high-end bluetooth headset on your Macbook Pro it's likely your mac is using an audio codec which favors battery efficiency over high quality. This results in a drastic degradation of sound, the SBC codec is the likely culprit, read more about it here.

Find out what codec you're using

  1. Play a song on your headphones
  2. Option (⌥) click the Bluetooth button at the top of your screen Inspect the Bluetooth Coded
  3. If you're using AAC or aptX, you can stop here—those are the highest quality codecs.

Change your codec to AAC or aptX

You'll need to download Apple's Bluetooth Explorer in order to change codecs.

  1. Head over to Apple's Developer Downloads

  2. Search for additional tools and download Additional Tools for XCode 11.dmg Search for "additional tools"

  3. Open the dmg, and open Bluetooth Explorer Open Bluetooth Explorer

  4. Change your audio codec to the following settings:

    • Enable AAC
    • Force use of aptX
    Change your audio codec

  5. Disconnect your Bluetooth headset, reconnect it, and while some music is playing, inspect your codec. It should now show either AAC or aptX.

    Your codec should now show AAC/aptX
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