Independent desire expression method based on auditory sense cognition neural signal
A technology of neural signals and expression methods, which is applied in the field of assistive devices for the disabled and human-computer interaction, can solve problems such as discomfort and visual fatigue of users, and achieve the effects of good applicability, increased speed, and less visual fatigue
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[0054] With this method, a voluntary expression system including five orientation options is realized, and the system is composed as follows: figure 1 .
[0055] The selected codebook library contains a total of 5 willingness options. The codebook indexes are: "Up", "Down", "Left", "Right", and "Center". The corresponding codebook content is: "Please go up Move", "Please move down", "Please move to the left", "Please move to the right" and "Please move to the middle". The five single-word speeches of "Up", "Down", "Left", "Right" and "Middle" were called from the speech library, arranged randomly to form the auditory stimulation sequence 2, and the length of each single-word speech was uniformly 250ms. Each sub-codebook index speech will be repeated five times at random, that is, this auditory stimulation sequence 2 contains 25 single-character speech in total. The interval between two adjacent single-word speeches is randomly distributed from 50ms to 250ms. The target inte...
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