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Q factor is a dimensionless parameter that describes how underdamped an oscillator or resonator is. It is defined as the ratio of the initial energy stored in the resonator to the energy lost in one radian of the cycle of oscillation, or as the ratio of the resonant frequency to the bandwidth.
A scientific journal in the field of acoustics, published by Elsevier since 1964. It covers original papers on any aspect of sound or vibration, with an impact factor of 4.7 in 2022.
Experiment using two tuning forks oscillating at the same frequency.One of the forks is being hit with a rubberized mallet. Although the first tuning fork hasn't been hit, the other fork is visibly excited due to the oscillation caused by the periodic change in the pressure and density of the air by hitting the other fork, creating an acoustic resonance between the forks.
In the case of a homogeneous, isotropic system, the quality is proportional to the FWHM. This sense of the phrase is the precursor of the usage of the word in music theory. In music theory, quality is the number of harmonics of a fundamental frequency of an instrument (the higher the quality, the richer the sound).
Learn how sound quality is assessed objectively or subjectively, and how it depends on various factors such as equipment, processing and environment. Explore different digital audio formats and their advantages and disadvantages.
Impact factor is a scientometric index that reflects the yearly mean number of citations of articles published in a journal. It is frequently used as a proxy for the relative importance of a journal within its field, but has been criticised for distorting good scientific practices.
Acoustics is the study of mechanical waves in gases, liquids and solids, such as sound, vibration, ultrasound and infrasound. Learn about the origin of the word, the ancient and modern research, and the applications of acoustics in various fields of science, technology and art.
PLOS (for Public Library of Science; PLoS until 2012 [1]) is a nonprofit publisher of open-access journals in science, technology, and medicine and other scientific literature, under an open-content license.