NET

6 When this sound occurred, a crowd gathered and was in confusion, because each one heard them speaking in his own language.

Darby

6 But the rumour of this having spread^D7712, the multitude came together and were confounded, because each one heard them speaking in his own dialect.

Darby Bible Notes

spread - Or 'this voice having taken place ' but I believe what is in the text to be the sense. It was what happened at the place which brought the crowd there. it was not the mighty rushing wind being heard everywhere. The end of the verse goes to confirm this. What struck those who came was hearing their own tongues. Gen. 45.16 and Jer. 50.46 are examples. The rumours of Jacob's coming spread to Pharaoh's house.

KJV

6 Now when this was noised^K6747abroad, the multitude came together, and were confounded^K6748, because that every man heard them speak in his own language.

KJV Bible Notes

when this was noised: Gr. When this voice was made. confounded: Or, troubled in mind.