How to set the path for the "title search path" when adding a third-party library to the iPhone application

I want to add a third-party Speech-To-Text library to my project Xcode. I just drag and drop the file xcodeprojinto my iPhone project. Then I followed steps like Target Dependencies, Link Binary with libraries and set the header search path. But I was confused about how to set the header search path correctly. Then I import #import SpeechToTextModule.h', at this time I received an error, for example, the SpeechToTextModule.h file was not found . Please help me.

Thanks in advance!