Signals traveling through transmission media in computer networks can experience attenuation, distortion, and noise, leading to signal loss and changes in form or shape. Attenuation results in energy loss requiring amplification, while distortion alters the signal's composition. Engineers use decibe

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This presentation covers the importance of hearing conservation, the anatomy of the ear, different types of hearing loss, factors affecting the degree of risk, the concept of decibels, common noisy environments, and advantages and disadvantages of hearing protection methods. It emphasizes the need f

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Undesired or excessive sound, known as noise pollution, can have harmful effects on human health, wildlife, and the environment. It is caused by various sources such as industries, workplaces, highways, railways, and airplanes. Sound waves, measured in decibels, play a crucial role in determining th

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