YOU SAID:

knife tapping against the window as it starts to crescendo

INTO JAPANESE

ナイフがクレッシェンドし始めたら窓を叩く

BACK INTO ENGLISH

Hit the window when the knife starts to crescendo

INTO JAPANESE

ナイフがクレッシェンドし始めたら窓にぶつかる

BACK INTO ENGLISH

When the knife starts to crescendo hits the window

INTO JAPANESE

ナイフがクレッシェンドし始めると窓に当たります

BACK INTO ENGLISH

The knife hits the window as it begins to crescendo

INTO JAPANESE

ナイフがクレッシェンドし始めると窓に当たります

BACK INTO ENGLISH

The knife hits the window as it begins to crescendo