The Bluetooth stack on Windows is pretty shit and you can't see the codecs used. It's not LDAC for sure though, that's Sony specific stuff for which Dell for sure doesn't pay (if there is even a Windows-implementation). 1. r/sony.
4. SBC. SBC, short for Low Complexity Sub-band Coding, is and does the bare minimum for Bluetooth transmission. Both Android and iOS devices have this codec, but you almost definitely don't want to use it over other codecs. Not only does it provide poor audio quality, but it also suffers from latency issues.
The Galaxy Buds use the SBC, AAC, and Samsung Scalable codecs. They don't support AptX, but AFAIK no other true wireless earbuds do, other than Sennheiser's True Momentum which sacrifices size and battery life. Unlike others, the Galaxy Buds do support Samsung's own propitiatory codec. Anyways, here is how I would rank them:
This enhanced codec supports 24-bit music quality over Bluetooth. This means listeners can hear even the smallest details in their music. Qualcomm aptX HD is designed to deliver 24-bit wireless HD audio wirelessly over Bluetooth and improve signal-to-noise ratio, resulting in lower background noise.
Win 10 supports SBC and aptx(the basic one, not LL, HD or Adaptive). If your device supports both sbc and aptx, it will prioritize aptx. If you have CSR chip based dongle you can install CSR Harmony software/driver that will have a popup to let you know when a device connects with aptx. For other chipse
That said, there does not appear to be a method for testing or setting the Bluetooth codec used to connect a device. When I pair the Jabra with Windows 11, I get the same sound I have always heard from this device. It isn't any better than what my Android 10 phone is producing. I know that the Android is using SBC due to limitations with that OS.
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change bluetooth codec windows 10
