Research on Nonlinear Frequency Compression Method of Hearing Aid with Adaptive Compression Ratio
نویسندگان
چکیده
منابع مشابه
Perceptual acclimatization post nonlinear frequency compression hearing aid fitting in older children.
PURPOSE In this study, the authors evaluated the effect of frequency compression hearing aids on speech perception ability and the time course and magnitude of acclimatization-related changes. METHOD Participants included children ages 11-18 years. Speech perception ability was evaluated over well-controlled baseline, treatment, and withdrawal study phases. Study-worn hearing aids were indivi...
متن کاملBenefit from, and acclimatization to, frequency compression hearing aids in experienced adult hearing-aid users.
OBJECTIVE The aim was to investigate whether frequency compression (FC) hearing aids provide additional benefit to that conferred by conventional amplification. DESIGN Participants wore the same hearing aid with FC enabled and disabled for six weeks (ABA design) in each condition. Speech recognition tests (in both quiet and in noise) were administered alongside two questionnaires. Performance...
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This paper investigates the effect of ethanol-unleaded gasoline blends (E0,E10,E25,E35,andE65) computer interfaced, four-stroke single cylinder compression ignition engine. The said engine wasconverted to spark ignition and carburetion to suit ethanol fuel. A suitable provision was provided on theengine to vary the compression ratio thereby making the engine adaptable to operate at lowercompres...
متن کاملDesign and evaluation of a two-channel compression hearing aid.
The design of a two-channel compression hearing aid for persons with moderate sensorineural hearing losses with recruitment is described. The aid applies slow-acting automatic gain control (AGC) to the whole signal, and then splits the signal into two bands, with separate fast-acting (syllabic) AGC in each band. Trials evaluating the aid have shown that it allows speech in quiet to be understoo...
متن کاملThe contribution of a frequency-compression hearing aid to contralateral cochlear implant performance.
BACKGROUND Frequency-lowering signal processing in hearing aids has re-emerged as an option to improve audibility of the high frequencies by expanding the input bandwidth. Few studies have investigated the usefulness of the scheme as an option for bimodal users (i.e., combined use of a cochlear implant and a contralateral hearing aid). In this study, that question was posed. PURPOSE The purpo...
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ژورنال
عنوان ژورنال: Computer Modeling in Engineering & Sciences
سال: 2019
ISSN: 1526-1506
DOI: 10.32604/cmes.2019.06314