ERIC Number: ED044890
Record Type: RIE
Publication Date: 1970-Feb
Reference Count: 0
Research on Frequency Transposition for Hearing Aids. Interim Report.
Pickett, James M.
To investigate impaired residual disciminiation for low-frequency formants and its influence on electronic compensation effectiveness, evaluations were made on impaired discrimination for speech formants, synthetic enhancement of consonants, wearable transposer aids, and a speech perception survey. Results showed that certain persons with severe sensorineural hearing loss have low frequency discimination for the frequency location of speech formants which is nearly normal, and that structured training is necessary if the formant frequency is above 250 Hz. The synthetically enhanced consonants appeared to be easier to discriminate than naturally spoken consonants. Due to electronic problems, no conclusions were reached concerning the wearable transposer aids. The speech perception survey indicated that low-frequency vowel sounds are more discriminable to the poorest sensorineural listeners than high frequency vowel sounds. (Author/RD)
Publication Type: N/A
Education Level: N/A
Sponsor: Bureau of Education for the Handicapped (DHEW/OE), Washington, DC.
Authoring Institution: Gallaudet Coll., Washington, DC.