When is お pronounced「ä」instead of「ō」？


Most often お is pronounced [ō], however sometimes I hear an [ä] instead. It
might be arbitrary, but it sounds so consistent to me, thus I ask, are there?
And if so, what are they?




ä with double dots isn't defined in the english language. What sound do you
mean?

お is defined as having one pronunciation, like "Oh" in english. Any variant is
regional, or related to accent.




ä with double dots isn't defined in the english language. What sound do you
mean?

お is defined as having one pronunciation, like "Oh" in english. Any variant is
regional, or related to accent.

