よく聞こえない

can't hear well

→ 良く
phrase Uncommon #12,092
can't hear well Used when someone's voice or another sound is difficult to hear clearly. よく聞こえる means "can hear well" or "sounds clear."
JA: 電話の音が小さくて、よく聞こえない。
EN: The sound on the phone is too quiet, so I can't hear well.

悪いんだけど君の声がよく聞こえない

Sorry, but I can’t hear you very well.

ごめんよく聞こえない

Sorry, I can't hear you very well.

よく聞こえない

I can't hear you very well.

— ブレット・トレイン (2022)

いやよく聞こえない

No, I can't hear you very well.

— ファイト・クラブ (1999)

よく聞こえない私の時計

Oh, my watch—I can’t hear it very well.

— 嵐の中で (2018)

声が小さくてよく聞こえない

You're speaking too quietly—I can’t hear you well.

まだよく聞こえない

I still can't hear you clearly.

— ファイト・クラブ (1999)

ごめんなさいでもよく聞こえないんです

I'm sorry, but I can't hear you very well.

よく聞こえないのです

I can't hear you very well.