G. Nike Gnanateja, Ph.D.
Assistant Professor, Department of Communication Sciences and Disorders
Director, Speech Processing and Auditory Neuroscience Laboratory
University of Wisconsin-Madison
Auditory processing of Speech Fine-Structure
The fast-fluctuating components of speech with frequency modulations close to the center frequency of the auditory filters, known as temporal fine structure (FS), and the slower varying amplitude modulations, called the envelope (ENV), are both crucial for speech perception. FS is particularly vital for understanding speech in noisy environments. While FS processing is susceptible to even minor auditory system damage, current hearing rehabilitation approaches often overlook the importance of providing better access to FS for individuals with hearing loss. This talk will begin with an overview of FS and its role in speech perception in noise, followed by a discussion of various non-speech and speech-based methods for assessing FS processing. The presentation will conclude by introducing accessible speech-based assessments for evaluating an individual’s ability to utilize Speech FS in challenging listening conditions. These insights have significant implications for the assessment of speech FS processing and the development of speech processing strategies in hearing aids and cochlear implants.