A R RAHMAN

Our internal speech is regulated by a brain signal called the corollary discharge. When we speak, an internal copy of our voice is generated simultaneously, so we can hear ourselves speaking(in our mind)even before we speak.

It is a fascinating insight for both kinds of people:

Your voice on a recording really is a new voice. Because your voice is an integral part of self-identity, the mismatch between the voice you know and the voice you hear can be disturbing. You realise other people know your voice as something else.

Researchers found tha...

If you feel compelled to give direct advice, do it. 

Some friends truly want and need to hear your opinion. Honest feedback, even when it may be hard to hear, can be just the tonic they need. Emphasize that your friend can take your advice or leave it.