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Development of a "virtual cocktail party" for the measurement of speech intelligibility in a sound field. 2011

David J Lilly, and Michele M Hutter, and M Samantha Lewis, and Robert Folmer, and Jeffrey Shannon
Department of Veterans Affairs Rehabilitation Research and Development, National Center for Rehabilitative Auditory Research, VA Medical Center, Portland, OR, USA. lillyd@ohsu.edu

This technical report describes an approach to the measurement of speech intelligibility for sentences presented in a sound field in the presence of 16-talker babble. More specifically, we detail our (1) selection and preparation of target speech materials, (2) selection and preparation of experimental babble, (3) analog instrumentation, (4) software routines for attenuator control, (5) calibration, (6) experimental subjects, and (7) experimental protocol. In the final section of this report we present speech-intelligibility data from 16 young adults (21-30 yr of age) with normal hearing sensitivity for pure-tone signals.

UI MeSH Term Description Entries
D008297 Male Males
D009622 Noise Any sound which is unwanted or interferes with HEARING other sounds. Noise Pollution,Noises,Pollution, Noise
D010470 Perceptual Masking The interference of one perceptual stimulus with another causing a decrease or lessening in perceptual effectiveness. Masking, Perceptual,Maskings, Perceptual,Perceptual Maskings
D004779 Environment Design The structuring of the environment to permit or promote specific patterns of behavior. Design, Environment,Healthy Places,Designs, Environment,Environment Designs,Healthy Place
D005260 Female Females
D006309 Hearing The ability or act of sensing and transducing ACOUSTIC STIMULATION to the CENTRAL NERVOUS SYSTEM. It is also called audition. Audition
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D013063 Speech Discrimination Tests Tests of the ability to hear and understand speech as determined by scoring the number of words in a word list repeated correctly. Discrimination Test, Speech,Discrimination Tests, Speech,Speech Discrimination Test,Test, Speech Discrimination,Tests, Speech Discrimination
D013067 Speech Perception The process whereby an utterance is decoded into a representation in terms of linguistic units (sequences of phonetic segments which combine to form lexical and grammatical morphemes). Speech Discrimination,Discrimination, Speech,Perception, Speech

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