YOU SAID:

on the wind i heard a sigh

INTO JAPANESE

風の上でため息が聞こえた

BACK INTO ENGLISH

I heard a sigh in the wind.

INTO JAPANESE

風にため息が出ました。

BACK INTO ENGLISH

There was a sigh in the wind.

INTO JAPANESE

風にため息がついていた。

BACK INTO ENGLISH

There was a sigh in the wind.