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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 ...
Through digital technologies such as mapping software and audio file encoding, the objective of using sound maps is partly that of making a soundscape database available to the public in a comprehensive fashion by uploading each site-specific soundscape onto a digital map as well as making the end product available for public collaboration. [6]
NetSpot provides all professional wireless site survey features for Wi-Fi and maps coverage of a living area, office space, buildings, etc. [3] It provides visual data to help analyze radio signal leaks, discover noise sources, map channel use, optimize access point locations. Also, the application can perform Wi-Fi network planning: the data ...
In China, SORCER is used as noise mapping platform for urban traffic, [11] a resource integration platform, [12] engineering collaborative design and manufacturing environment, [13] [14] and at the Wright State University as a collaborative computational framework for multidisciplinary and reliability-based analysis and optimization.
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]
The program can decode signals with a signal-to-noise ratio as low as −28 dB in a 2500 Hz bandwidth. [2] Stations with internet access can automatically upload their reception reports to a central database called WSPRnet, which includes a mapping facility.
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Perlin noise is a type of gradient noise developed by Ken Perlin in 1983. It has many uses, including but not limited to: procedurally generating terrain , applying pseudo-random changes to a variable, and assisting in the creation of image textures .