AUDIO DSP: TIME AND FREQUENCY VARYING GAIN COMPENSATION FOR NON-OPTIMAL LISTENING LEVELS

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" AUDIO DSP: TIME AND FREQUENCY VARYING GAIN COMPENSATION FOR NON-OPTIMAL LISTENING LEVELS "

Document Type	:	Latin Dissertation
Language of Document	:	English
Record Number	:	151843
Doc. No	:	ET23635
Main Entry	:	Carol Espy-Wilson
Title Proper	:	AUDIO DSP: TIME AND FREQUENCY VARYING GAIN COMPENSATION FOR NON-OPTIMAL LISTENING LEVELS
Note	:	This document is digital این مدرک بصورت الکترونیکی می باشد
Abstract	:	Although the human hearing system is very complex, several models exist thatexplain parts of the hearing system. This thesis uses one of these models, thecontours of equal loudness, to make music played at low listening levels sound morelike it does at the intended listening level.The perceived frequency balance of music varies with the listening level. This isespecially noticeable at low listening levels, where frequencies below 500Hz seemattenuated. Moreover, hearing perception exhibits non-linear dynamic rangecompression, most evident at low frequencies.A system is designed where filter banks and power measurements estimate the timevaryingpower of low frequency parts of the audio signal. The time-varying power ofeach narrow frequency band is compared...........-....,....-...,..tested for theQ1 PC1 bus cardBoth these projects mere sofixare des elopment efforts tonards contributing to dlfferentaspects of Roboucs and lZ1echatronics projects m the Controls and Roboucs Group..
Subject	:	Electericl tess
	:	برق
electronic file name	:	TL46879.pdf
Title and statement of responsibility and	:	AUDIO DSP: TIME AND FREQUENCY VARYING GAIN COMPENSATION FOR NON-OPTIMAL LISTENING LEVELS [Thesis]