As the sound of the trumpet grew louder and louder, Moses spoke and the voice of God answered him.
NMVAnd when the voice of the trumpet sounded long, and waxed louder and louder, Moshe [He Who Draws Out Of The Waters] spoke, and God-Elōhīm (The Living Word) [The Many Powered] answered him by a voice.
OJBAnd when the sound of the shofar was moving [closer], and grew louder and louder, Moshe spoke, and HaElohim answered him in thunder.
Onkelos (Etheridge)But when the voice of the trumpet went forth and became exceedingly strong, Mosheh spake, and from the presence of the Lord he was answered by a voice.
T4TAs the sound of the trumpet continued to become louder, Moses/I spoke to Yahweh, and Yahweh answered him/me in a loud voice that sounded like thunder.