Spectro-temporal modulation transfer functions and speech intelligibility. Export

@article{citeulike:294550, abstract = {Detection thresholds for spectral and temporal modulations are measured using broadband spectra with sinusoidally rippled profiles that drift up or down the log-frequency axis at constant velocities. Spectro-temporal modulation transfer functions (MTFs) are derived as a function of ripple peak density (omega cycles/octave) and drifting velocity (omega Hz). The MTFs exhibit a low-pass function with respect to both dimensions, with 50\% bandwidths of about 16 Hz and 2 cycles/octave. The data replicate (as special cases) previously measured purely temporal MTFs (omega = 0) [Viemeister, J. Acoust. Soc. Am. 66, 1364-1380 (1979)] and purely spectral MTFs (omega = 0) [Green, in Auditory Frequency Selectivity (Plenum, Cambridge, 1986), pp. 351-359]. A computational auditory model is presented that exhibits spectro-temporal MTFs consistent with the salient trends in the data. The model is used to demonstrate the potential relevance of these MTFs to the assessment of speech intelligibility in noise and reverberant conditions.}, address = {Electrical Engineering Department, University of Maryland, College Park 20742, USA.}, author = {Chi, T. and Gao, Y. and Guyton, M. C. and Ru, P. and Shamma, S.}, citeulike-article-id = {294550}, citeulike-linkout-0 = {http://view.ncbi.nlm.nih.gov/pubmed/10573888}, citeulike-linkout-1 = {http://www.hubmed.org/display.cgi?uids=10573888}, issn = {0001-4966}, journal = {J Acoust Soc Am}, keywords = {language, memory, ripples, sound}, month = {November}, number = {5}, pages = {2719--2732}, posted-at = {2005-08-16 20:17:33}, priority = {2}, title = {Spectro-temporal modulation transfer functions and speech intelligibility.}, url = {http://view.ncbi.nlm.nih.gov/pubmed/10573888}, volume = {106}, year = {1999} }

TY - JOUR ID - citeulike:294550 L3 - citeulike-article-id:294550 N2 - Detection thresholds for spectral and temporal modulations are measured using broadband spectra with sinusoidally rippled profiles that drift up or down the log-frequency axis at constant velocities. Spectro-temporal modulation transfer functions (MTFs) are derived as a function of ripple peak density (omega cycles/octave) and drifting velocity (omega Hz). The MTFs exhibit a low-pass function with respect to both dimensions, with 50% bandwidths of about 16 Hz and 2 cycles/octave. The data replicate (as special cases) previously measured purely temporal MTFs (omega = 0) [Viemeister, J. Acoust. Soc. Am. 66, 1364-1380 (1979)] and purely spectral MTFs (omega = 0) [Green, in Auditory Frequency Selectivity (Plenum, Cambridge, 1986), pp. 351-359]. A computational auditory model is presented that exhibits spectro-temporal MTFs consistent with the salient trends in the data. The model is used to demonstrate the potential relevance of these MTFs to the assessment of speech intelligibility in noise and reverberant conditions. IS - 5 JF - J Acoust Soc Am SN - 0001-4966 AD - Electrical Engineering Department, University of Maryland, College Park 20742, USA. EP - 2732 TI - Spectro-temporal modulation transfer functions and speech intelligibility. VL - 106 SP - 2719 KW - language KW - memory KW - ripples KW - sound AU - Chi, T AU - Gao, Y AU - Guyton, MC AU - Ru, P AU - Shamma, S PY - 1999/11// UR - http://view.ncbi.nlm.nih.gov/pubmed/10573888 ER -