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dc.contributor.advisorHunt, Shawn D.
dc.contributor.authorBenitez-Quiroz, Carlos F.
dc.description.abstractThis research work presents new techniques on the dithering of one dimensional signals. The first part of this work was to determine whether dither is needed when reducing the bit depth. This was done with time series hypothesis tests in time and frequency domains, and they evaluate whether the total error of the undithered quantization is white noise. If this is the case, then no undesired harmonics are added in the quantization or re-quantization process. The second part of this work was to develop a state of the art dither which is signal dependent and attempts to have lower quantization noise than the classic techniques. Experiments showing the effectiveness of the methods with both synthetic and real audio signals are presented.en_US
dc.description.abstractEn este trabajo de investigación se muestran nuevas técnicas sobre dithering en señales de una dimensión. La primera parte es determinar si dithering es necesario cuando se reduce el número de bits en una señal digital. Esto se determina usando pruebas de hipótesis en series de tiempo en el dominio del tiempo y de la frecuencia, en las cuales se evalúa si el error total de cuantización es ruido blanco. La segunda parte de esta investigación fue desarrollar un dither que se encuentra en el estado del arte el cual sea dependiente de la señal y tengo un ruido de cuantización menor que el de las técnicas clásicas. Experimentos realizados en esta investigación muestra la eficiencia de los métodos en audio sintético y real.en_US
dc.description.sponsorshipSupported by CenSSIS, Bernard Gordon Center for Subsurface Sensing and Imaging Systems, under the Engineering Research Centers Program of the National Science Foundation (Award Number EEC-998621).en_US
dc.titleAdaptive dithering of one dimensional signalsen_US
dc.rights.licenseAll rights reserveden_US
dc.rights.holder(c) 2007 Carlos Fabian Benitez-Quirozen_US
dc.contributor.committeeSantana, Damaris
dc.contributor.committeeVelez-Reyes, Miguel
dc.contributor.representativeCáceres, Luis F. Engineeringen_US
dc.contributor.collegeCollege of Engineeringen_US
dc.contributor.departmentDepartment of Electrical and Computer Engineeringen_US

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