Audiology and Speech-Language Pathology are both fields in the broader category of communication sciences and disorders. They involve the study and treatment of disorders related to speech, language, hearing, and communication.

To pursue a PhD in Audiology or Speech-Language Pathology, you typically need to have a relevant master's degree and a strong academic record. You will also need to pass any required entrance exams and meet any other admission requirements set by the university you are interested in.

Once you are admitted to a PhD program, you will typically spend several years conducting research, completing coursework, and working on a dissertation. Your research may focus on a wide range of topics, from the development of new diagnostic tools and treatments for communication disorders to the exploration of the neural and behavioral mechanisms that underlie speech and language.

Overall, pursuing a PhD in Audiology or Speech-Language Pathology can be a challenging and rewarding experience, and it can lead to a variety of career opportunities in academia, research, and clinical practice.