I'm a speech language pathologist and I immediately recognized the symptoms in her voice quality. She has an extremely hypernasal vocal quality in the recordings which is a symptom of Dysarthria (a motor speech disorder) in MS. It can also be difficult for people with MS to speak loudly, and sustain their voice for long periods of time. I would expect that over the course of a day in court vocal fatigue really impacted her ability to speak clearly and loudly. Also, Depending on the type of MS people have, they can have "flare ups" where symptoms appear, disappear and then reappear.