METHOD FOR SIMULATING AUDITORY PATIENT PERCEPTION OF ACOUSTIC SIGNAL AFTER COCHLEAR IMPLANTATION Russian patent published in 2006 - IPC A61B5/16 G10L19/00 A61F11/00 

FIELD: medicine.

SUBSTANCE: method involves applying analog-to-digital input signal transformation expressed as word, dividing transformed signal spectrum into odd and even frequency bands, summing odd bands, carrying out digital-to-analog transformation of resulting summed signal and training its perception by preliminarily getting familiar with the word shown for listening and following testing. Spectrum division is based on tonotopic frequency distribution law over cochlea axis. Frequency bands having odd numbers are arranged in equal distances along basilar membrane length in agreement with normal tonotopic frequency distribution law over cochlea axis. At least three odd spectrum bands are summed up. Training is carried out by multiple repetition of the word shown for listening until unambiguous correlation to the known word meaning given in preliminary acquaintance takes place. The same words are to be shown in testing and training.

EFFECT: partially retained speech spectrum.