CCCH9008 Noise Pollution and Control in HK Two important characteristics of sound or noise Frequency of Sound Sound is the quickly varying pressure wave travelling through a medium. When sound travels through air‚ the atmospheric pressure varies periodically. The number of pressure variations per second is called the frequency of sound‚ and is measured in Hertz (Hz) - cycles per second. Loudness A loud noise usually has a larger pressure variation and a weak one has smaller pressure variation
Premium Sound Ear Noise pollution
Technology of the Future CIS 105 Sunday October 3‚ 2010 Technology of the Future There are numerous different technological devices in society today and countless more to come in the near future‚ but one of today’s technological devices that are used nearly every day is Medical sonography (ultrasonography/ultrasound) an ultrasound-based diagnostic imaging technique used to visualize muscles and internal organs‚ their size‚ structures and possible pathologies or lesions. (TheFreeDictionary
Premium Ultrasound Medical imaging Acoustics
Abstract This study was conducted to determine the combined effects of coloured lighting and ambient sound on mood. 48 psychology undergraduates‚ comprising of 38 females and ten males‚ took part in this study. This study is a 2x2 between subjects design. The coloured lightings used in this study are blue and yellow combined with the ambient sound of ‘city’ and ‘nature’ whereas mood was measured with the Positive and Negative Affect Schedule (PANAS). We discovered that coloured lighting had no significant
Premium Acoustics Sound Noise pollution
One philosophy that some persons question‚ including a few of our own aviation medical examiners‚ relates to our greater flexibility in granting special issuances to private pilots as opposed to air carrier and other commercial pilots. The arguments against such flexibility rotate around the thought that‚ in the event of a medical incapacitation‚ an air carrier or commercial pilot usually has another pilot on board who can take control of the aircraft and safely land. In contrast‚ the private pilot
Premium Sound Ear Auditory system
HK01 Civil Engineering Programme KA 40701 Makmal IV Journal Reports Group 6 (C1 -E) Noise Level Range in Lecture Hall Nancy Chua Yin Yee‚ Fashius Mark Marail‚ Fatin Suraya bte Suhaili‚ AG.Mohd Taufiq B.Ag.Ali‚ Syazwan Bin Madso‚ Dayang Haniza Binti Awang Patra Abstract: Sound is technically described in term of loudness (amplitude) of the sound and frequency (pitch) of the sound. The standard unit measurement of the loudness of sound is the decibel (dB). Noise can be taken as pollution because
Premium Noise pollution Noise Acoustics
The Basic Elements of Speech Volume * Speech volume‚ or how softly or loudly you speak‚ can directly affect the way a speaker is perceived by those around him. Loud speakers may come off as angry or overly passionate‚ and can potentially overwhelm or alienate listeners. In contrast‚ speaking too softly can make it difficult for others to listen‚ and can even indicate a lack of confidence in some situations. Rate * When speaking to others‚ rate of speech is crucial to maintaining audience
Premium Human voice Language Loudspeaker
On a daily basis‚ humans are surrounded by noise and unable to avoid its ubiquitous presence. This poses a major problem for teenage garage bands‚ whose parental units do not approve of ear piercing feedback and novice percussionists. Although there is no guaranteed solution to the cacophony‚ sound absorbing material acts as a “noise blanket” to reduce sound to a more tolerable level. The objective of our experiment is to determine if sound absorption by foam and related materials changes with the
Free Sound Acoustics
I will talk about the harmonic and formant structure of [a]-falsetto voice. For this purpose‚ we have to think about spectra domain. Since we are easy to see harmonic and formant from spectra domain comparing to time domain. There are four methods to convert time domain to spectra domain. First way is using Helmholtz resonators. Second way is using controlled bank of filter. Third way is using Fourier analysis‚ for short FFT. The last way is using Linear Predictive coding‚ for short
Premium Acoustics
Filtered Speech Experiment Purpose The purpose of the filtered speech experiment was to look for three things. The first was to see/hear which frequencies can be eliminated from speech signal and conversely which frequencies can not in order to understand speech. The second purpose was to learn more about sound filters; and the third was to understand what it is like to experience hearing loss. Instrumentation The instruments we used during this experiment were: 1) Low pass filter of the
Premium Sound Acoustics Psychology
MUSIC BUSINESS PLAN Sound Noise Records 2013 Prepared by Brandon Ernest EXECUTIVE SUMMARY Mission Statement Sound Noise‚ a State of Indiana “S” Corporation‚ spotlights unconventional music‚ merchandise and entertainment typically overshadowed by mainstream ideologies. It speaks to the shared experiences of Generation Y and The Urban Trendsetter. It provides fair compensation to its employees‚ a fair return to its owners‚ and a fair royalty to its artists. Goals * Establish and grow
Premium Sound Noise pollution Noise