Articles

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Methods for Calculating Loudness

ISO 532-1:2017 – Acoustics – Methods for Calculating Loudness – Part 1: Zwicker Method ISO 532-1:2017 specifies two methods for estimating the loudness and loudness level of sounds as perceived…

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Equal Loudness Contour

  Data obtained at Bell Labs by Kingsbury (1927) was the earliest to be used to generate loudness contour. For many years, contours reported by Fletcher and Munson (1933) were…

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What is psychoacoustics?

[caption id="attachment_11084" align="alignnone" width="937"] Gustav Fechner (1801-1887), “Father of Psychophysics.”[/caption] Psychoacoustics is the branch of psychophysics involving the scientific study of sound perception. It is the branch of science studying…

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What is environmental sound?

  How should environmental sound be characterised? An environmental sound is non-speech and is not a in the context of sine tone, pink noise, or white noise often used in…

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Conveyor Belt Camera Based on ADVACAM WidePIX F Detector

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CERN Scientists Uses Lasers to
Cool Antimatter For The First Time

  Geneva, March 31, 2021. The ALPHA collaboration at CERN has successfully cooled antihydrogen atoms, the simplest form of atomic antimatter, using lasers. This technique, known as laser cooling, was…

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Underground Sun Conversion Tech Uses Sunlight to Produce Natural Gas

In many countries, long, dark winters limit the amount of solar energy that can be generated for much of the year. That's where the Underground Sun Conversion system comes in,…