'Sound' in the Bible

"Then Yahweh heard the sound of your words, and he was angry, and he swore, {saying},

And Yahweh spoke to you from the midst of the fire; {you heard} a sound of words, but {you did not see} a form--only a voice.

"And Yahweh heard the sound of your words {when you spoke to me}, and Yahweh said to me, 'I have heard the sound of the words of this people that they have spoken to you; [they] are right [with respect to] all that they have spoken.