Sound synthesis by minicomputer: System PHON
Tài liệu tham khảo
Suen, C. Y., &Beddoes, M. P. Development of SPELLEX—a talking typewriter for the blind.Proceedings of the 27th Annual Conference on Engineering, Medicine, and Biology, 1974,16, 348.
Suen, C. Y., &Beddoes, M. P. Spelled speech as an audio output for the LEXIPHONE reading machine and the SPELLEX talking typewriter for the blind.Research Bulletin of the American Foundation for the Blind, 1975,29, 51–66.