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1 courbe d’intensité sonore
Dictionnaire d'ingénierie, d'architecture et de construction > courbe d’intensité sonore
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Equal-loudness contour — An equal loudness contour is a measure of sound pressure (dB SPL), over the frequency spectrum, for which a listener perceives a constant loudness when presented with pure steady tones. The unit of measurement for loudness levels is the phon, and … Wikipedia
Contour — may refer to: an outline or silhouette a contour line on a contour map, or the corresponding line on the ground or sea bed Contour (linguistics), a phonetic sound Pitch contour (music), a melody shape Contour (camera system), a 3D digital camera… … Wikipedia
Pitch contour — In linguistics, speech synthesis, and music, the pitch contour of a sound is a function or curve that tracks the perceived pitch of the sound over time. Pitch contour may include multiple sounds utilizing many pitches, and can relate to frequency … Wikipedia
Tone contour — A tone contour is a tone in a tonal language which shifts from one pitch to another over the course of the syllable or word. Tone contours are especially common in East and Southeast Asia, but occur elsewhere, such as the Kru languages of Liberia … Wikipedia
Psychoacoustics — is the study of subjective human perception of sounds. Alternatively it can be described as the study of the psychological correlates of the physical parameters of acoustics. Background Hearing is not a purely mechanical phenomenon of wave… … Wikipedia
A-weighting — A graph of the A , B , C and D weightings across the frequency range 10 Hz – 20 kHz Video illustrating A weighting by analyzing a sine sweep (contains audio) A weighting is the most … Wikipedia
Audiogram — An audiogram is a standard way of representing a person s hearing loss [http://www.phonak.co.uk/ccuk/consumer/hearing/audiogram.htm] . Most audiograms cover the limited range 100Hz to 8000Hz (8kHz) which is most important for clear understanding… … Wikipedia
Weighting filter — A weighting filter is used to emphasise or suppress some aspects of a phenomenon compared to others, for measurement or other purposes. Contents 1 Audio application … Wikipedia
Hearing range — for more detail on human hearing see Audiogram,Equal loudness contours and Hearing impairment. Hearing range usually describes the range of frequencies that can be heard by an animal or human, though it can also refer to the range of levels. In… … Wikipedia
Measuring instrument — Captain Nemo and Professor Aronnax contemplating measuring instruments in Twenty Thousand Leagues Under the Sea … Wikipedia
Sound pressure — Sound measurements Sound pressure p, SPL Particle velocity v, SVL Particle displacement ξ Sound intensity I, SIL Sound power Pac Sound power level SWL Sound energy Sound energy d … Wikipedia