It was first seen in the Samsung Galaxy Buds and is designed to reduce choppy audio. Samsung Scalable Codec (SSC) is quite similar to aptX Adaptive and is compatible only with Samsung devices. This helps people who are hard of hearing to listen to music while still being able to hear their surroundings. It allows the transmission of multiple audio streams simultaneously. Low Complexity Communication Codec (LC3) is a relatively new codec developed by Fraunhofer IIS and Ericsson to bring Bluetooth capabilities into hearing aids. Its latency is quite similar to aptX Low Latency but has better audio quality as it can improve its performance as per the signal strength. It also has a low latency sibling called LHDC LL or LLAC (Low Latency Audio Codec). It offers a high audio quality while still keeping its latency fairly low. All Android devices with Android 10 and above support this codec, while iOS devices don't. Low-Latency High-Definition Codec (LHDC) is developed by the High-res Wireless Audio (HWA) Union and Savitech. Not only does it provide poor audio quality, but it also suffers from latency issues. Both Android and iOS devices have this codec, but you almost definitely don't want to use it over other codecs.

SBC, short for Low Complexity Sub-band Coding, is and does the bare minimum for Bluetooth transmission. Its performance is nerfed in the Android ecosystem, but iOS is optimized to take full advantage of it. Contrary to other codecs, AAC uses psychoacoustics to reduce file size for quick transmission. However, it is found on most Android devices too. Standing for Advanced Audio Codec, ACC is the standard codec on iOS devices. The only difference is that LDAC switches between three pre-set audio qualities while aptX Adaptive can freely slide between a range.

Similar to aptX Adaptive, LDAC adjusts its performance as per the signal strength. LDAC was developed by Sony and is a close competitor to aptX Adaptive in terms of features.

How to use aftercodecs