Speech Rehabilitation Based on Mobile Applications

Inclusion Criteria: * Patients must be able to use a smartphone-based speech therapy application, as determined by self-reporting cognitive abilities. * Speaks English as a native language. Exclusion Criteria: * Unable to use smartphone application or conduct speech assessment due to severe speech impairment. * Self-reported co-existing progressive neurological disorders that can affect dysarthria (e.g., dementia, Pick's disease, Huntington's disease, Parkinson's disease, or Parkinsonism). * Patient with severe mental disorders as self-reported (e.g., depression, schizophrenia, alcohol addiction, or drug addiction). * Illiterate patients.