Can deaf people immigrate to Germany?

Your hearing problem should not affect your immigration interview. Explain this situation when applying, and see how the embassy can help you, such as repeating questions or speaking louder.

Your hearing may affect your ability to work, so if you don't have special skills, I think the immigration officer may consider that you can't find a job in Germany by yourself and need the government's burden.

I'm not sure about the immigration requirements in Germany. If you want to immigrate, it's mainly because you don't meet the requirements of immigration. This should be considered comprehensively, not to say that deaf people can't immigrate.