更大声的扬声器

loud speaker───扩音器，[电子]扬声器；增高话音

loud speakers───扬声器；扩音器

loudspeaker───n.喇叭，扬声器；扩音器

loudspeakers───扬声器；扩音器

doublespeaker───n.欺人之谈，故弄玄虚的言词(doublespeak的变形)

flour shaker───面粉搅拌器

guest speaker───特邀发言人，客席讲者；嘉宾演讲人

I found the speaker was much louder, for music and for the speakerphone.───我发现新手机扬声器在播放音乐与通话方面的音量都有明显提高。

speaker spoke a bit louder in order to make himself heard more clearly.───讲话人把嗓门提高了一点儿，以便让别人听得更清楚。