منابع مشابه
Evaluation of nonlinear frequency compression: Clinical outcomes
This study evaluated prototype multichannel nonlinear frequency compression (NFC) signal processing on listeners with high-frequency hearing loss. This signal processor applies NFC above a cut-off frequency. The participants were hearing-impaired adults (13) and children (11) with sloping, high-frequency hearing loss. Multiple outcome measures were repeated using a modified withdrawal design. T...
متن کاملNonlinear frequency compression: Influence of start frequency and input bandwidth on consonant and vowel recognition.
By varying parameters that control nonlinear frequency compression (NFC), this study examined how different ways of compressing inaudible mid- and/or high-frequency information at lower frequencies influences perception of consonants and vowels. Twenty-eight listeners with mild to moderately severe hearing loss identified consonants and vowels from nonsense syllables in noise following amplific...
متن کاملRadio Frequency Pulse Compression*
High gradients require high peak powers. One possible way to generate high peak powers is to generate a relatively long pulse at a relatively low power and compress it into a shorter pulse with higher peak power. It is possible to compress before DC to RF conversion as is done for the relativistic klystron or after DC to RF conversion as is done with SLED. In this note only radio frequency puls...
متن کاملNonlinear frequency compression: effects on sound quality ratings of speech and music.
Frequency lowering technologies offer an alternative amplification solution for severe to profound high frequency hearing losses. While frequency lowering technologies may improve audibility of high frequency sounds, the very nature of this processing can affect the perceived sound quality. This article reports the results from two studies that investigated the impact of a nonlinear frequency c...
متن کاملMultichannel Nonlinear Frequency Compression: A New Technology for Children with Hearing Loss
Address correspondence to: Susan D. Scollie, Ph.D., National Centre for Audiology, Elborn College, School of Communication Sciences and Disorders, Faculty of Health Sciences, University of Western Ontario, London, Ontario, Canada, N6G 1H1, [email protected] frequency versions of high frequency phonemes during the critical infant, toddler, and preschool years of speech and language acquisition....
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ژورنال
عنوان ژورنال: Trends in Amplification
سال: 2013
ISSN: 1084-7138
DOI: 10.1177/1084713813480856