1. A system comprising: a computer-readable medium having stored thereon model data that includes at least one model of a characteristic of a language spoken by a patient; and a speech analyzer configured to analyze an audio sample including speech of the patient, identify phonemes from the speech of the patient, analyze the identified phonemes to identify prosodic characteristics of the speech of the patient using the model, and automatically measure fluency of the speech of the patient based on the prosodic characteristics.