Even tiny sounds can be louder through speakers!

即使是很小的声音，通过扬声器也能变得更大！

youdao

But if too much of the sound from the speakers goes back into the mic it goes around and around in a loop getting louder each time.

但如果讲话者发出太多声音，回转回麦克风，环绕并行程一个循环，声音逐次变大。

youdao

But if too much of the sound from the speakers goes back into the mic it goes around and around in a loop getting louder each time.

但如果讲话者发出太多声音，回转回麦克风，环绕并行程一个循环，声音逐次变大。

youdao