I wrote that all names are man-made, meaning that the alphabets which we use to express sound in writing are man-made, and you responded:
"'YHWH' is not a man made invention, that is God's invention."
Since then I've been on holiday to beautiful Devon and had time for reflection and must agree with you on this. Likewise, I would think the names of Michael and Gabriel were also God-given, as well as the names of Abraham, Israel and others.
However, I do believe it remains true that God's name is conveyed by the consonants we know and their equivalent in various alphabets. Quite clearly God has allowed for variation in the way it is pronounced.