German phrase
Kannst du bitte lauter sprechen?
Meaning
Can you please speak louder?
When to use it
Asks someone to speak louder. Use it when you cannot hear them.
Example dialogue
Ich kann deine Ansage nicht hören. Kannst du bitte lauter sprechen?
I can't hear your announcement. Can you please speak louder?
Ja, klar, mache ich.
Yes, sure, I will.