I have had several vocal related issues. Firstly, my vocal register appears to have been bumped up by an octave or 2 without my realising it. When I was 12-13 I remember having a dull baritone monotone. I now sound fairly childlike.
The timbre and cadential patterning of my voice changes frequently at random and without conscious attention on my part.
Finally until recently I spent the majority of my time at home where I talked to my family members in a sort of "baby-voice". This made me feel safe somehow but was limited to home - outside the home or with company present I would revert to my normal speech characteristics.

Im wondering if anyone relates to any of this. Seems seriously weird and im wondering if its related to AS at all