Qualcomm's aptX Lossless promises true CD-quality audio over Bluetooth
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Bluetooth audio codecs: A guide to earbud audio quality
What is aptX? Cutting through the clutter of Qualcomm's codecs | Digital Trends
aptX, aptX HD and Sony LDAC Bluetooth codecs all working in Android "O" | Headphone Reviews and Discussion - Head-Fi.org
Qualcomm's high-res Bluetooth audio codec aptX HD is now on over 60 devices | Android Central
Found aptx and aptx hd on a Nexus 5x Android 8 dp4 | XDA Forums
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Beoplay EX AptX HD option not available on Pixel 6 pro? : r/headphones
Bluetooth audio codecs: A guide to earbud audio quality
LG phones always default to AAC instead of AptX?? | XDA Forums