How to say “After they fitted the acoustic panels, we could finally hear the dialogue without that echo.” in Japanese
In Japanese
吸音パネルを付けてから、やっと音が響かなくなって、せりふが聞き取れるようになったね。
Kyūon paneru o tsukete kara, yatto oto ga hibikanaku natte, serifu ga kikitoreru yō ni natta ne.