rms amplitude

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• Amplitude — is the magnitude of change in the oscillating variable, with each oscillation, within an oscillating system. For instance, sound waves are oscillations in atmospheric pressure and their amplitudes are proportional to the change in pressure during …   Wikipedia

• Amplitude — F/A/V The strength of an electronic signal as measure by its waveform height. (Sound) A&V The magnitude of a signal in voltage or current. Frequently expressed in terms of peak, peak to peak, or RMS …   Audio and video glossary

• DBFS — means decibels full scale . It is an abbreviation for decibel amplitude levels in digital systems which have a maximum available level (like PCM encoding).0 dBFS is assigned to the maximum possible level.cite web last =Price first =Jim authorlink …   Wikipedia

• Signal-to-noise ratio — For signal to noise ratio in statistics, see Cohen s d. Signal to noise ratio (often abbreviated SNR or S/N) is a measure used in science and engineering that compares the level of a desired signal to the level of background noise. It is defined… …   Wikipedia

• Dynamique sonore — Dans le domaine du son et de l audio, la dynamique sonore[1] désigne le rapport entre le son le plus fort possible et le son le plus faible possible ou le niveau de bruit de fond, par exemple pour un microphone ou un haut parleur. En audio… …   Wikipédia en Français

• Audio power — 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 density …   Wikipedia

• 500 kHz (maritime et aéronautique) — La fréquence de 500 kHz (désignée aussi par sa longueur d onde : 600 mètres) est la fréquence internationale de détresse et d appel en radiotélégraphie morse[1] pour les stations du service mobile maritime et aéronautique travaillant… …   Wikipédia en Français

• Defining equation (physics) — For common nomenclature of base quantities used in this article, see Physical quantity. For 4 vector modifications used in relativity, see Four vector. Very often defining equations are in the form of a constitutive equation, since parameters of… …   Wikipedia

• Dynamic range — For other uses, see Dynamic range (disambiguation). Dynamic range, abbreviated DR or DNR,[1] is the ratio between the largest and smallest possible values of a changeable quantity, such as in sound and light. It is measured as a ratio, or as a… …   Wikipedia

• Delta-sigma modulation — Delta sigma (ΔΣ; or sigma delta, ΣΔ) modulation is a method for encoding high resolution or analog signals into lower resolution digital signals. The conversion is done using error feedback, where the difference between the two signals is… …   Wikipedia

• Décibel — Pour les articles homonymes, voir Décibel (homonymie). Le décibel (dB) est un sous multiple du bel, correspondant à un dixième de bel. Nommé en l’honneur de l’inventeur Alexandre Graham Bell, le bel est un outil mathématique, sans unité, de… …   Wikipédia en Français