Despite that speech is often characterized by either spectral or temporal cues, its everyday perception involves the integration of temporal patterns present at different spectral loci. The long-term goals of the proposed research program are to further our understanding of the normal mechanisms employed during the processing of the spectro-temporal patterns in speech, and to characterize limitations that hearing impairment places on these mechanisms. Techniques combining psychoacoustic and speech perception research will be employed to extend a number of recent observations concerning spectro-temporal processing. These examinations will involve both listeners with normal hearing and those with sensorineural hearing impairment.
The aims are: (1) To establish the spectral resolution employed to process speech (2) To examine the use of temporal information at different rates and spectral frequencies (3) To examine the spectro-temporal processing deficit in hearing impaired listeners The information gained has the ability to further our understanding of normal speech processing. It also has the ability to further our understanding of the impact of hearing impairment by providing a comprehensive examination of the ability to use the fluctuating temporal patterns in speech, and by examining the influence of broadened auditory tuning on the reception of particular speech materials in particular frequency regions.
|Healy, Eric W; Yoho, Sarah E; Chen, Jitong et al. (2015) An algorithm to increase speech intelligibility for hearing-impaired listeners in novel segments of the same noise type. J Acoust Soc Am 138:1660-9|
|Apoux, Frédéric; Youngdahl, Carla L; Yoho, Sarah E et al. (2015) Dual-carrier processing to convey temporal fine structure cues: Implications for cochlear implants. J Acoust Soc Am 138:1469-80|
|Healy, Eric W; Yoho, Sarah E; Wang, Yuxuan et al. (2014) Speech-cue transmission by an algorithm to increase consonant recognition in noise for hearing-impaired listeners. J Acoust Soc Am 136:3325|
|Healy, Eric W; Youngdahl, Carla L; Apoux, Frédéric (2014) Evidence for independent time-unit processing of speech using noise promoting or suppressing masking release (L). J Acoust Soc Am 135:581-4|
|Healy, Eric W; Yoho, Sarah E; Wang, Yuxuan et al. (2013) An algorithm to improve speech recognition in noise for hearing-impaired listeners. J Acoust Soc Am 134:3029-38|
|Apoux, Frédéric; Yoho, Sarah E; Youngdahl, Carla L et al. (2013) Role and relative contribution of temporal envelope and fine structure cues in sentence recognition by normal-hearing listeners. J Acoust Soc Am 134:2205-12|
|Healy, Eric W; Yoho, Sarah E; Apoux, Frédéric (2013) Band importance for sentences and words reexamined. J Acoust Soc Am 133:463-73|
|Kwon, Bomjun J; Perry, Trevor T; Wilhelm, Cassie L et al. (2012) Sentence recognition in noise promoting or suppressing masking release by normal-hearing and cochlear-implant listeners. J Acoust Soc Am 131:3111-9|
|Apoux, Frederic; Healy, Eric W (2012) Use of a compound approach to derive auditory-filter-wide frequency-importance functions for vowels and consonants. J Acoust Soc Am 132:1078-87|
|Apoux, Frederic; Healy, Eric W (2011) Relative contribution of target and masker temporal fine structure to the unmasking of consonants in noise. J Acoust Soc Am 130:4044-52|
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