000			01661nam a22001697a 4500
999			_c3238 _d3238
003			OSt
005			20191004153626.0
008			191004b ||||| |||| 00| 0 eng d
040			_cNational Acoustics laboratories
100			_aKates, James M
245			_aThe Hearing-Aid Speech Quality Index (HASQI)
520	3		_aSignal modifications in audio devices such as hearing aids include both nonlinear and linear processing. An index is developed for predicting the effects of noise, nonlinear distortion, and linear filtering on speech quality. The index is designed for both normalhearing and hearing-impaired listeners. It starts with a representation of the auditory periphery that incorporates aspects of impaired hearing. The cochlear model is followed by the extraction of signal features related to the quality judgments. One set of features measures the effects of noise and nonlinear distortion on speech quality, whereas second set of features measures the effects of linear filtering. The hearing-aid speech quality index (HASQI) is the product of the subindices computed for each of the two sets of features. The models are evaluated by comparing the model predictions with quality judgments made by normal-hearing and hearing-impaired listeners for speech stimuli containing noise, nonlinear distortion, linear processing, and combinations of these signal degradations.
700			_aKathryn H Arehart
773	0		_g Vol. 58, No. 5, 2010 May _tJ. Audio Eng. Soc.,
856			_uhttps://dspace.nal.gov.au/xmlui/bitstream/handle/123456789/1002/The%20hearing%20aid%20speech%20quality%20index.pdf?sequence=1&isAllowed=y
942			_2ddc _cBOOK