Loudness

Loudness is a way of describing how loud something sounds. When something is louder, it has a higher loudness, and when something is quieter, it has a lower loudness. When you listen to music, for example, it can be very loud or very quiet depending on how you set your speakers. High loudness can be uncomfortable or even painful to your ears, so it's important to adjust the volume on your speakers so that it's not too loud.