To enable high-quality EAC3 (Dolby Digital Plus) audio on MX Player, you must install a custom codec, as licensing restrictions prevent the app from supporting this format natively . Why You Need a Custom Codec
Hardware Decoder+ (HW+): Once the codec is installed, use the HW+ Decoder in the top-right corner of the video playback screen to ensure smooth multi-channel audio processing. mx player custom codec eac3 extra quality
.so file if you are on a newer version).The Ultimate Guide to MX Player Custom Codec: Fixing EAC3 for Extra Quality Audio To enable high-quality EAC3 (Dolby Digital Plus) audio