This final report describes activities and outcomes of a research project on a sound-to-speech translation system utilizing a graphic mediation interface for students with severe disabilities. The STS/Graphics system is a voice recognition, computer-based system designed to allow individuals with mental retardation and/or severe physical disabilities (such as quadriplegia, spinal cord injury, cerebral palsy, and assorted neurological disorders) to communicate with others and control their environment. Operation of the STS/Graphics system is through vocalization, switch closure, or keyboard input for activation of electrical appliances and/or digitized speech output. Choices available to the user are displayed on a monitor as customized photographic-quality symbols representing familiar items/persons in the user's environment. The project resulted in four major outcomes: (1) development and refinement of the STS/Graphics system; (2) application, evaluation, field testing, and research results of the STS/Graphics system with students having mental retardation; (3) development of training strategies and a training manual on the use of the STS/Graphics system; and (4) documentation of the STS/Graphics system research with two videotapes. Individual sections of the report present the project's objectives, methodology, and a description of hardware and software used. Also attached are the training manual, sample evaluation forms, and the following papers or articles by Carrie Brown and others: "Research Focusing on Freedom of Choice, Communication, and Independence Using Eyegaze and Speech Recognition Assistive Technology"; "The Sound-to-Speech Translation Utilizing Graphic Symbols"; "Speech Recognition and Graphics Research for Persons Having Mental Retardation"; and "The Sound-to-speech Translation System Using Photographic-Quality Graphic Symbols." (Individual papers contain references.) (Author/DB)