One reason I green-lighted Rogier van Bakel's review of the Apple AirPod Pro 2 is that, while Bluetooth audio has a somewhat dubious past, its future seems promising (footnote 1). Bluetooth is a protocol that enables wireless audio and much else. Operating within the Bluetooth standard, or riding on top of it, are codecs for coding audio including SBC (the basic, default Bluetooth audio codec), AAC (preferred by Apple and used by YouTube), LDAC (from Sony), and several varieties of aptX (standard, HD, Adaptive, Lossless, and so on).
Sony and Qualcomm have…