Gallery — University

A minimal template, for creating an assignment.

Erciyes Üniversitesi Bilgisayar Mühendisliği Bölümü'nde kullanılan "Bitirme Ödevi" dersi tez formatı

LaTeX Template for UB Thesis/Dissertation, downloaded from https://github.com/jmodares/UBThesis.

Template inicial para uma dissertação de mestrado do PPGCC UFMA. Sugestões por enviar para geraldo @ nca . ufma . br

Template for a Master Thesis in the Master in CyberSecurity

Modèle pour les rapports de stages de l'IUT-A Lille - département informatique.

Una plantilla (no oficial) para la tesis de los itamitas.

There are several voice communication systems that are used nowadays which are capable of maintain voice calls between two users in real time. Telephones are widely used all around the world in an unlimited kind of situations. All of these situations expose the microphone (or microphones) of the phones to different and unpredictable noises, as street noise, sea noise, rain noise, wind noise, unwanted voices, car motors, etc. As microphones capture all the sounds around it, including the wanted voice and the unwanted noises, it is necessary to implement digital real time filters capable of attenuate as much as possible all the surrounding noises. It exists a large quantity of noise reduction methods that have been used in the calling algorithms of phones. Even if these methods have had, in general, a good performance, there is still a research being done in this area in order to improve the current results. Because of this, the multichannel methods were created (using multiple microphones) as well as new algorithms that pretend to have a better noise reduction than the single channel methods. Most of these methods require a speech presence probability (SPP) method to achieve the noise reduction. The following document presents a research about different SPP methods as well as a comparison between these. This includes an explanation on how theses algorithm work, a Matlab implementation using real voice and noise recordings and objective tests of the filter.

This version of the template includes the TU Chemnitz logo on all pages and is pre setup with the official TU Chemnitz color. If you wish to remove the logo, you may do so within the template, or by starting from this version. To download this template for use offline, please click the download button and save the zip file to your computer.