Literature Review On Noise And Smartphone Noise

Sound waves are nothing more than an energy transfer through a medium be it through a liquid, solid, or a gas. Sound pressure or intensity is measured on logarithmic scale in decibels dB which increases on an order of magnitude. For instance a quiet conversation would be around 30 dB and whereas the human pain threshold would be just over 100 dB. While the pitch or frequency of the sound is measured in hertz or Hz, the higher the hertz the higher the pitch of the sound and vice versa (Hildebrand, 2004).

In the literature review, process and develop a conceptual framework of the issue or problem that is being researched. This section should present a comprehensive review of the historical and current literature on the topic. The literature review should:

|Individual |Resource: Literature Review in Research: An Annotated Bibliography Grading Criteria |Wk 1 D7 |10 |

Detects different physical characteristics of pressure waves: • Pitch: perception of the frequency of sound waves (umber of wavelengths that pass a fixed point in a unit of time) • Loudness: the perception of the intensity of sound (the pressure exerted by sound

This study sought to answer three research questions. Although the questions have been presented in previous chapters, they are worth presenting again.

Noise mapping and exposure monitoring: Measurements are collected using a noise evaluation instrument, sounds level meters, octave band analyzers, and noise dosimeters. All equipment

"This literature review will use a selection of available documents on the topic, which contain information, ideas, data and evidence written from a particular standpoint to fulfill certain aims or express certain views on the nature of the topic and how it is to be investigated, and the effective evaluation of these documents in relation to the research being proposed."

EDE 325 Assignment 1 Case study (30%). Due 20th June, 2016, 1500 words (10% leeway +/-) Includes intext references.

Therefore, the following literature review will examine articles and their findings within this controversial topic.

In this section, there are two main articles selected that will be further analyze by providing a concise description of the articles, which include the purpose of the article, questions of the authors address, key findings and their conclusion.

The purpose of this review is to narrate and provide the details of published academic studies about the

The researchers in the beginning of the article discuss their literature review in order to inform the reader on the subject. Here, they use data from an array of sources, ranging from the current and primary sources, organizing

Chapter 9 provides recommendations as to how future research could further support this research paper.

LITERATURE REVIEW RESEARCH METHODS Conceptual framework RESULT CONCLUSION DISCUSSION Recommendation Limitation of the study REFERENCES

A review of the literature provides more detailed information on the chosen topic. Its purpose is to give the researcher knowledge that will form the foundation for his or her study and therefore, the information must be related to the topic. Not only does it provide basic information on the variables in the topic but also covers various relatable studies conducted in the past; how, where they were conducted, and the conclusions that the researcher(s) came to. Literature can be obtained from a wide variety of sources; newspapers, journals, databases, books, encyclopedias, digital sources, and much more. Information obtained in this section helps the researcher understand the magnitude of the problem defined in the first stage, recognize any consequences and gaps that other researchers may have not filled, and identify potential strategies to combat the problem. It serves as a secondary source of information. Based on