CAI system for testing and training discrimination ability of change in voice pitch through the cochlear implant

In the cochlear implant, change in voice pitch is transmitted through the periodicity of change in density of neural pulse trains excited by the electrical signal. As the transmission quality of the voice pitch depends on the setting of the processor of each device, it is necessary to measure precisely the discrimination ability of change in voice pitch for each user, and to make maximum use of it. For this purpose, a CAI (Computer Assisted Instruction) system for testing and training the discrimination was developed.