'Sound' in the Bible

Then you shall sound the ram’s horn everywhere on the tenth day of the seventh month (almost October); on the Day of Atonement you shall sound the trumpet throughout your land.

As for those who are left of you, I will bring despair (lack of courage, weakness) into their hearts in the lands of their enemies; the sound of a scattered leaf will put them to flight, and they will flee as if [running] from the sword, and will fall even when no one is chasing them.