Speak, and she will hear you and answer.
5 seconds sound clip from the Bride of Frankenstein movie soundboard.
You can hear this line at 01:01:56 in the Blu-ray version of the movie.
Quote context
[...]
- Elizabeth is alive, and she is well.
- In a few moments from now, she will speak to you from where she is through this electrical machine.
- Speak, and she will hear you and answer.
- Henry, yes, I'm safe. But, Henry, how long? Come for me. I'm in a cave...
- Elizabeth? Elizabeth! She's gone.
- That is all now, but you heard her.
- As soon as our work is completed, she will be returned to you.
[...]