OpenMAX AL is a special set of rules that helps different parts of a computer or device talk to each other when playing audio or video. Think of it like a group of friends playing a game together -- they need to communicate with each other to make sure everyone knows the rules and follows them, just like different parts of a device need to talk to each other to make sure audio and video play smoothly.
OpenMAX AL helps these different parts, like the software and hardware, to communicate with each other in a way that everyone understands. For example, the software might say, "Hey, hardware, I want you to play this song," and the hardware will say, "Sure, I understand what you mean and I'll start playing it now." This way, the audio and video can work together without any confusion.
OpenMAX AL is used in a lot of different devices, like smartphones, tablets, and even some cars. It makes it easier for developers to create apps and software that work with different devices, and it makes it easier for you to enjoy your music and videos without any problems.