Let's try a quick experiment. Sit down at your computer, console, or mobile device and get set to play your favorite game. First, mute the sound. Now, adjust the video settings so the screen is dim and, if possible, black and white. Okay, now play your game. I'll bet the game is not as fun as you remember. Go ahead and reset any settings you changed. Now, play the game again. What a difference!
Even if you did not go along with my experiment, I'll bet you understand the impact those changes would have on your ability to enjoy the gaming experience. This underlines just how important audio and visual effects are for gamers. Imagine an explosion without a sound. You get the point, audio and visual effects are important. So, why talk about them at all? Adding appropriate audio to games is considered a best practice. We'll consider best practices in implementing audio and video in Unity.
