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A microphone’s sensitivity varies with frequency (as well as with other factors such as environmental conditions) and is therefore normally recorded as several sensitivity values, each for a specific frequency band (see frequency spectrum). A microphone’s sensitivity can also depend on the nature of the sound field it is exposed to.
A pointing stick (or trackpoint, also referred to generically as a nub or nipple) is a small analog stick used as a pointing device typically mounted centrally in a computer keyboard. Like other pointing devices such as mice , touchpads or trackballs , operating system software translates manipulation of the device into movements of the pointer ...
This also allows the user to access the voice recognition training wizard, in which an individual 'teaches' the computer to recognize a person voice interactively using the microphone. Stored User Names and Passwords (keymgr.dll) (control.exe /name microsoft.credentialmanager) (Renamed "Credential Manager" in Windows 7 and later)
It is commonly a hand-held instrument with a microphone. The best type of microphone for sound level meters is the condenser microphone, which combines precision with stability and reliability. [1] The diaphragm of the microphone responds to changes in air pressure caused by sound waves. That is why the instrument is sometimes referred to as a ...
The formal definition of calibration by the International Bureau of Weights and Measures (BIPM) is the following: "Operation that, under specified conditions, in a first step, establishes a relation between the quantity values with measurement uncertainties provided by measurement standards and corresponding indications with associated measurement uncertainties (of the calibrated instrument or ...
Sound is widely used in a variety of human–computer interfaces, in computer games and video games. [21] [22] There are a few extra requirements for sound production for computer applications, including re-usability, interactivity and low memory and CPU usage. For example, most computational resources are usually devoted to graphics.
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Gauge (engineering) A highly precise measurement instrument, also usable to calibrate other instruments of the same kind. Often found in conjunction with defining or applying technical standards. Gradiometer any device that measures spatial variations of a physical quantity.