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The maps may be useful for planning stages, or for prior evaluation of action plans, or determination of most polluted areas. With a strategic noise map, furthermore, an evaluation is possible to show the number of people exposed within dBA ranges. Facade sound levels must be calculated or estimated from the previous map. [further explanation ...
The Sound Around You Project began as a soundscape research project [7] at the University of Salford, UK in 2007.The project allows people to use audio recorders to record clips or sonic postcards of around 30 seconds in length from different sound environments, or ‘soundscapes’ from a family car journey to a busy shopping centre, and to upload them to the virtual map, along with their ...
Passive acoustics is the action of listening for sounds, often at specific frequencies or for purposes of specific analyses. It is often used for passive acoustic monitoring (PAM), the act of recording animal and environmental sounds through the use of acoustic sensors for the purpose of tracking animals and answering other ecological questions.
The pre-processing of ambient noise data refers to the filtering of the raw data before proceeding to further analysis (cross-correlation, inversion). Raw seismic data can be collected by either geophones, seismometers, or from authorized official bodies. There are also public ambient noise source maps available in recent years. [8]
Noise regulation includes statutes or guidelines relating to sound transmission established by national, state or provincial and municipal levels of government. After the watershed passage of the United States Noise Control Act of 1972, [2] other local and state governments passed further regulations.
The simplest acoustic network consists of one measurement resulting in a single range between sound source and sound receiver. Bigger networks are only limited by the amount of equipment available, and computing power needed to resolve the resulting data. The latest acoustic networks used in the marine seism
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