音效 (yīn xiào) — sound effects (in film, games, etc.); acoustics…

Definition

sound effects (in film, games, etc.)acoustics (the quality of sound in a space)

音效。
Zhè bù diànyǐng de yīn xiào fēicháng bīzhēn.
The sound effects in this movie are very realistic.
音效。
Zhège yīnyuètīng de yīn xiào hěn hǎo.
The acoustics in this concert hall are very good.
音效。
Yóuxì zhōng de yīn xiào ràng wánjiā gèng yǒu chénjìngǎn.
The sound effects in the game make players feel more immersed.