Essays on Decibel

Objectives

Introduction A wind instrument is an instrument that produces sound by manipulating air through varying the wind pressure passing through the air outputs of the device (Berg and Stock, 27). These devices are heavily dependent on pressure as well as the size and shape of the instrument (pg. 28). A good example of a wind instrument is the organ pipe. It is a tool that produces a specific pitch when pressurized air is driven through it. Organ pipes usually exist in sets, where each is confined to produce a specific tune. Normally, it is a keyboard device that is ...

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Abstract 3

Introduction 4 Problem 1 4 Problem 2 6 Problem 3 7 Problem 4 9 Problem 5 12 Discussion 13 Conclusion 14

References 15

Appendix 17 Abstract Noisy audio signals are relatively common and unavoidable. An important task of digital signal processing is to tackle this problem, so as to produce an almost, if not noiseless audio signal. One way of doing this is to use Finite Impulse Response (FIR) filters. Here we present our findings on different FIR filters, and their effects on an audio signal provided in ...

Impact of Noise Pollution on Mental Health

Introduction Noise is increasingly becoming a major threat to both human and animal life. In last few decades, noise pollution has increased considerably in every urban area with an ever-increasing population and heavy load of traffic on roads. Since noise is not a palpable matter one can see, taste or smell, over the years noise pollution has received very limited attention compared to other types of pollution like air or water pollution. Due to the increasing urbanization and industrial growth, environmental noise caused by transportation systems and machines, aircraft, motor vehicles, trains, loud music and constant hubbub of city life ...

Hearing impairment is a disability that involves the diminished or missing capacity for hearing in an individual. Partial and full deafness can cause substantial problems in learning, due to the lack of visual cues and an inability for teachers to adapt their curriculum to individuals with hearing disabilities. In today's world, the need for an education, particularly up to a college degree, is absolutely imperative to gaining stable employment, making it vital for citizens, regardless of disability, to have the chance to gain that education (Boutin, 2008). In this paper, the nature of hearing impairment will be detailed, as well as ...