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2. Noise map - Wikipedia

   en.wikipedia.org/wiki/Noise_map

   For industrial noise map production, the most important thing is the description of noise sources: sound power levels (emission), directivity, working periods. Although some databases can be found, in some cases it is necessary to make measurements (ISO 3740) for describing the source.

3. Equal-loudness contour - Wikipedia

   en.wikipedia.org/wiki/Equal-loudness_contour

   The first research on the topic of how the ear hears different frequencies at different levels was conducted by Fletcher and Munson in 1933. Until recently, it was common to see the term Fletcher–Munson used to refer to equal-loudness contours generally, even though a re-determination was carried out by Robinson and Dadson in 1956, which became the basis for an ISO 226 standard.

4. List of presentation programs - Wikipedia

   en.wikipedia.org/wiki/List_of_presentation_programs

   AppleWorks (formerly ClarisWorks presentation editing) - Classic Mac OS, Mac OS X, Windows 2000 or later; CA-Cricket Presents - Apple Macintosh, Windows; Gobe Productive - BeOS, Linux, Windows; Harvard Graphics - DOS, Windows; IBM Lotus Symphony - Linux, Mac OS X, Windows; Lotus Freelance Graphics - Windows; Jarte - Windows; MagicPoint - Unix ...

5. Presentation program - Wikipedia

   en.wikipedia.org/wiki/Presentation_program

   The "slide" analogy is a reference to the slide projector, a device that has become somewhat obsolete due to the use of presentation software. Slides can be printed, or (more usually) displayed on-screen and navigated through at the command of the presenter. An entire presentation can be saved in video format. [6]

6. Noise calculation - Wikipedia

   en.wikipedia.org/wiki/Noise_calculation

   Noise experts and some small specialized companies have slowly developed a limited number of calculation tools, which have increased in number and become more user-friendly, covering more application cases, and adding service elements to the noise calculation tools. The noise calculation process is complex in input (gathering data, correctly ...

7. List of concept- and mind-mapping software - Wikipedia

   en.wikipedia.org/wiki/List_of_concept-_and_mind...

   Desktop mind mapping and brainstorming software, for business, education, or personal activities; Integrates with Microsoft Word, PowerPoint, Project, MindManager, FreeMind and XMind; Compatible with Twitter, Skype and Evernote services; Creately: Cinergix Pvt. Ltd. Windows, OS X, Linux: Shapes and symbols in libraries; Built-in examples and ...