Breakdown of Kapı açık olunca sokaktaki gürültüyü duyabiliyorum.
Questions & Answers about Kapı açık olunca sokaktaki gürültüyü duyabiliyorum.
Both are possible, but they are not exactly the same in feel.
- açık olunca = when/once/since it is open
- açıkken = while it is open
In this sentence, olunca links the condition or situation to the result:
Kapı açık olunca ... duyabiliyorum = When the door is open, I can hear ...
It is built from olmak (to be / to become) + -ınca.
So:
- Kapı açıkken sokaktaki gürültüyü duyabiliyorum.
= I can hear the street noise while the door is open. - Kapı açık olunca sokaktaki gürültüyü duyabiliyorum.
= When the door is open / if the door is open, I can hear the street noise.
In many contexts, they are very close.