YOU SAID:

Im sorry, i cant hear you, can you speak louder?

INTO JAPANESE

すみません、聞こえません。もっと大きな声で話せますか？

BACK INTO ENGLISH

I'm sorry, I can't hear you. Can you speak louder?

INTO JAPANESE

すみません聞こえませんもっと大きな声で話してもらえますか。

BACK INTO ENGLISH

Excuse me, but I can't hear you. Could you speak louder?

INTO JAPANESE

すみませんが、聞こえません。もっと大きな声で話してもらえますか。

BACK INTO ENGLISH

I'm sorry, I can't hear you. Can you speak louder?

INTO JAPANESE

すみません聞こえませんもっと大きな声で話してもらえますか。

BACK INTO ENGLISH

Excuse me, but I can't hear you. Could you speak louder?

INTO JAPANESE

すみませんが、聞こえません。もっと大きな声で話してもらえますか。