brighten   (Sound)

The brighten has 2 Senses.

• lighten up, lighten, brighten
• 照らす
• make lighter or brighter; "The paint will brighten the room"
• より明るくするあるいは輝かせる

• clear up, light up, brighten, clear
• become clear; "The sky cleared after the storm"
• 晴れた状態になる