How to find out the difference between the different types of HDMI audio encoders

HDMI Audio Codecs (HDMI) are a subset of audio encoder technologies used in PCs and smartphones.HDMI is the name for a series of audio technologies that encode and decode audio data.HDCP (Digital Content Protection) is the technology that protects the audio data from unauthorized playback and distribution.HDMI 1.2, HDMI 2.0, HDCP 1.4, and the HDCP