The Prophet replied, "My Lord spoke to me with the voice of 'Ali ibn Abi Talib and said, `O' Ahmad! I am an Entity that is not like anything else. I can not be compared to anything else and I know all the secrets of your heart. With the exception of 'Ali ibn Abi Talib, you have no other close friend. Thus, I speak to you with the voice of 'Ali ibn Abi Talib so that your heart will be at ease."
This seems to imply that a Shia belief is that Allah communicates with Prophets using human voices. The Qur'an describes Allah communicating with Iblis, e.g.:
[Allah] said, "What prevented you from prostrating when I commanded you?" [Satan] said, "I am better than him. You created me from fire and created him from clay." -- Qur'an 7:12
This motivates the question:
Question: According to Shia Islam, does Allah communicate with Iblis in a human voice, and if so whose voice is it?