{"id":5951,"date":"2025-09-30T08:27:06","date_gmt":"2025-09-30T15:27:06","guid":{"rendered":"https:\/\/www.iths.org\/participate\/?p=5951"},"modified":"2025-09-30T08:27:06","modified_gmt":"2025-09-30T15:27:06","slug":"perceptual-effects-of-delayed-speech-enhancement","status":"publish","type":"post","link":"https:\/\/www.iths.org\/participate\/perceptual-effects-of-delayed-speech-enhancement\/","title":{"rendered":"Perceptual Effects of Delayed Speech Enhancement"},"content":{"rendered":"
<\/div>\n

Participants will listen to a series of sentences and record what they hear. The study will take about an hour to complete.<\/p>\n

Location can be flexible<\/p>\n

To determine the effects of enhancement delay and intensity on speech intelligibility.<\/p>\n

To evaluate how delay impacts subjective sound quality metrics (e.g., clarity, naturalness, perceived delay, listening effort).<\/p>\n

To compare delay tolerance in quiet versus background noise conditions.<\/p>\n

Methods Used:
\nThirty 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.<\/p>\n

Participant Eligibility<\/h3>\n

All participants must be 18-35 years old with no known hearing problems.<\/p>\n

Contact<\/h3>\n

Riya Yerramilli
\n(425) 922-8882 x_____<\/p>\n

<\/p>\n

Additional Study Details<\/h3>\n

Full Study Title<\/strong>
\nPerceptual Effects of Delayed Speech Enhancement: Influence of Delay, Gain, and Listening Environment
\n<\/span><\/p>\n

Study ID:<\/strong> STUDY00023511<\/div>\n
ClinicalTrials.gov Link:<\/strong><\/div>\n
<\/div>\n
Start Date:<\/strong> 08\/01\/2025<\/div>\n
End Date:<\/strong> 05\/01\/2026<\/div>\n
<\/div>\n

Investigator(s)<\/strong>
\nGavriel Kohlberg, PhD
\nJosh Bogren
\n<\/span>
\nAccepts Healthy Volunteers?<\/strong>
\nYes<\/span><\/p>\n

Study Site(s)<\/strong><\/p>\n

\n

Virginia Merrill Bloedel Hearing Research Center\/CHDD Clinic Building<\/h4>\n

Virginia Merrill Bloedel Hearing Research Center, CHDD Clinic Bldg, NE Columbia Rd
\nSeattle, Washington 98195<\/p>\n<\/div>\n

\n

<\/h4>\n<\/div>\n
<\/div>\n

<\/div>\n","protected":false},"excerpt":{"rendered":"

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…<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":["post-5951","post","type-post","status-publish","format-standard","hentry","category-healthy-volunteers"],"_links":{"self":[{"href":"https:\/\/www.iths.org\/participate\/wp-json\/wp\/v2\/posts\/5951","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.iths.org\/participate\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.iths.org\/participate\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.iths.org\/participate\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.iths.org\/participate\/wp-json\/wp\/v2\/comments?post=5951"}],"version-history":[{"count":2,"href":"https:\/\/www.iths.org\/participate\/wp-json\/wp\/v2\/posts\/5951\/revisions"}],"predecessor-version":[{"id":5953,"href":"https:\/\/www.iths.org\/participate\/wp-json\/wp\/v2\/posts\/5951\/revisions\/5953"}],"wp:attachment":[{"href":"https:\/\/www.iths.org\/participate\/wp-json\/wp\/v2\/media?parent=5951"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.iths.org\/participate\/wp-json\/wp\/v2\/categories?post=5951"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.iths.org\/participate\/wp-json\/wp\/v2\/tags?post=5951"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}