Search Results - "Lutfi, Robert A."

An efficient code for environmental sound classification by Arora, Raman, Lutfi, Robert A.

“…An efficient code for classifying environmental sounds is described that exploits a recent significant advance in signal processing known as compressed sensing…”
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A test of model classes accounting for individual differences in the cocktail-party effect by Lutfi, Robert A., Rodriguez, Briana, Lee, Jungmee, Pastore, Torben

“…Listeners differ widely in the ability to follow the speech of a single talker in a noisy crowd—what is called the cocktail-party effect. Differences may arise…”
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Molecular analysis of individual differences in talker search at the cocktail-party by Lutfi, Robert A., Pastore, Torben, Rodriguez, Briana, Yost, William A., Lee, Jungmee

“…A molecular (trial-by-trial) analysis of data from a cocktail-party, target-talker search task was used to test two general classes of explanations accounting…”
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The Listener Effect in Multitalker Speech Segregation and Talker Identification by Lutfi, Robert A., Rodriguez, Briana, Lee, Jungmee

“…Over six decades ago, Cherry (1953) drew attention to what he called the “cocktail-party problem”; the challenge of segregating the speech of one talker from…”
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Sensory constraints on auditory identification of the material and geometric properties of struck bars by LUTFI, Robert A, STOELINGA, Christophe N. J

“…A computational formula is derived for estimating the constraints limited auditory sensitivity imposes on auditory identification of the material and geometric…”
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Estimates of decision weights and internal noise in the masked discrimination of vowels by young and elderly adults by Gilbertson, Lynn, Lutfi, Robert A, Lee, Jungmee

“…Gilbertson and Lutfi [(2014). Hear. Res. 317, 9-14] report that older adults perform similarly to younger adults on a masked vowel discrimination task when the…”
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Correlations of decision weights and cognitive function for the masked discrimination of vowels by young and old adults by Gilbertson, Lynn, Lutfi, Robert A.

“…Older adults are often reported in the literature to have greater difficulty than younger adults understanding speech in noise [Helfer and Wilber (1988). J…”
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Automated detection of alarm sounds by LUTFI, Robert A, HEO, Inseok

“…Two approaches to the automated detection of alarm sounds are compared, one based on a change in overall sound level (RMS), the other a change in periodicity,…”
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Auditory streaming of tones of uncertain frequency, level, and duration by Chang, An-Chieh, Lutfi, Robert A, Lee, Jungmee

“…Stimulus uncertainty is known to critically affect auditory masking, but its influence on auditory streaming has been largely ignored. Standard ABA-ABA tone…”
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The information-divergence hypothesis of informational masking by Lutfi, Robert A, Gilbertson, Lynn, Heo, Inseok, Chang, An-Chieh, Stamas, Jacob

“…In recent years there has been growing interest in masking that cannot be attributed to interactions in the cochlea-so--called informational masking (IM)…”
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Auditory preference of children with autism spectrum disorders by Gilbertson, Lynn R., Lutfi, Robert A., Ellis Weismer, Susan

“…Research on children with autism spectrum disorders suggests differences from neurotypical children in the preference for ‘social’ versus ‘nonsocial’ sounds…”
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A detection-theoretic framework for modeling informational masking by LUTFI, Robert A, CHANG, An-Chieh, STAMAS, Jacob, GILBERTSON, Lynn

“…There has been growing interest in recent years in masking that appears to have its origin at a central level of the auditory nervous system--so-called…”
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Effect of decision weights and internal noise on the growth of d ′ with N by Lutfi, Robert A., Gilbertson, Lynn

“…A general finding of psychoacoustic studies is that detectability d ' of a noisy signal grows less than optimally with the number N of independent observations…”
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Spectral integration versus multiple looks in the sample discrimination of intensity by Lutfi, Robert A., Gilbertson, Lynn

“…A fundamental property of hearing is that signals become more detectable as their bandwidth is increased. Two models have been proposed to account for this…”
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Molecular analysis of the effect of relative tone level on multitone pattern discrimination by Lutfi, Robert A., Jesteadt, Walt

“…Molecular psychophysics attempts to model the observer's response to stimuli as they vary from trial to trial. The approach has gained popularity in multitone…”
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Target enhancement and noise cancellation in the identification of a rudimentary sound source in noise by Lutfi, Robert A., Liu, Ching-Ju

“…Perturbation analysis was used to determine the relative contribution of target enhancement and noise cancellation in the identification of rudimentary sound…”
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A method for evaluating the relation between sound source segregation and masking by Lutfi, Robert A., Liu, Ching-Ju

“…Sound source segregation refers to the ability to hear as separate entities two or more sound sources comprising a mixture. Masking refers to the ability of…”
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Individual differences in source identification from synthesized impact sounds by Lutfi, Robert A., Liu, Ching-Ju

“…Impact sounds were synthesized according to standard textbook equations given for the motion of freely vibrating membranes, bars, and plates. In a…”
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Level dominance in sound source identification by Lutfi, Robert A., Liu, Ching-Ju, Stoelinga, Christophe

“…Impact sounds were synthesized according to standard textbook equations given for the motion of simply supported, metal plates. In a two-interval,…”
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A new approach to sound source segregation by Lutfi, Robert A, Liu, Ching-Ju, Stoelinga, Christophe N J

“…We rely critically on our ability to 'hear out' (segregate) individual sound sources in a mixture. Yet, despite its importance, little is known regarding this…”
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