30 Sep Perceptual Effects of Delayed Speech Enhancement
Participants will listen to a series of sentences and record what they hear. The study will take about an hour to complete.
Location can be flexible
To determine the effects of enhancement delay and intensity on speech intelligibility.
To evaluate how delay impacts subjective sound quality metrics (e.g., clarity, naturalness, perceived delay, listening effort).
To compare delay tolerance in quiet versus background noise conditions.
Methods Used:
Thirty normal-hearing adults will listen to sentences presented in quiet and multitalker babble noise. Sentences will include speech enhancement overlays at varying intensities and delays. Participants will repeat sentences aloud and rate sound quality after each block. Stimuli are presented using a randomized and counterbalanced design implemented in Python. Responses will be analyzed using linear mixed-effects models.
Participant Eligibility
All participants must be 18-35 years old with no known hearing problems.
Contact
Riya Yerramilli
(425) 922-8882 x_____
Additional Study Details
Full Study Title
Perceptual Effects of Delayed Speech Enhancement: Influence of Delay, Gain, and Listening Environment
Investigator(s)
Gavriel Kohlberg, PhD
Josh Bogren
Accepts Healthy Volunteers?
Yes
Study Site(s)
Virginia Merrill Bloedel Hearing Research Center/CHDD Clinic Building
Virginia Merrill Bloedel Hearing Research Center, CHDD Clinic Bldg, NE Columbia Rd
Seattle, Washington 98195
