Abstract: Noise is a determining factor in stress-related ailments, and progressively affects the population's sense of hearing. In practice, because noise is typical of power-operated systems, its effect can be minimized if the power of the wave front is below the hearing threshold. That is a proposal commonly reported in the literature and with various variants is focused on designing the controlled alteration of the communication channel. The system thus developed is an active noise controller. In this contribution, experimental results show the feasibility of developing a channel controller using the TAdsp28335 card. With this proposal, two purposes were achieved: to develop a low-cost system, and to determine the requirements of the Active Noise Controller to develop optimal processing algorithms for real time operation. Experimental results show that the best solution is the FxLMS algorithm, with online estimation. It was observed that if the ANC system is excited with an electrical signal

• Publication Date: 24-Jan-2021
• DOI: 10.15224/978-1-63248-191-7-07
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Abstract: Coronavirus is a family of viruses that got its name from its appearance. Following the 1968 scientific investigation under a microscope examination the virus resembled a solar corona, the bright crown-like ring of gasses surrounding the sun that is visible during a solar eclipse and so the name “corona”. There are about 49 million infections of covid-19 recorded in the world with about 1.24 million deaths and 35 million recoveries. The rate of death is about 3% of the total careers. While efforts are on top gear, unfortunately no vaccines have been discovered and approved to prevent it. There are about 63,328 cases in Nigeria, 59,675 recovered and 1,155 have died. On March 11, 2020 COVID-19 was declared a global pandemic similar to H1N1 influenza a pandemic in 2009. COVID-19 likely originated in a “wet market” in Wuhan, with vendors selling live animals such as cats, dogs, rabbits, fish, and bats. When an infected person coughs or sneezes, the new coronavirus may be transmitte

• Publication Date: 24-Jan-2021
• DOI: 10.15224/978-1-63248-191-7-08
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