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Re:Ask HN: How to prevent audio downsampling with AirPods? by dmitrygr on Sunday May 17, 2020 @08:30PM (#23216906)
False. Not a2dp (that isn't a codec but a protocol, and NOT the one used for headset profile)

Much worse

Cvsd(baaad, one bit per sample, similar to ADPCM) or mSBC( similar to mpeg layer 1 audio bad)

Source: worked on this for years.

Re:Ask HN: How to prevent audio downsampling with AirPods? by thesandlord on Friday May 22, 2020 @02:58PM (#23275632)
That makes even more sense, thanks for the correction!