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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.
All speaker drivers have a means of electrically inducing back-and-forth motion. Typically there is a tightly wound coil of insulated wire (known as a voice coil) attached to the neck of the driver's cone. In a ribbon speaker, the voice coil may be printed or bonded onto a sheet of very thin paper, aluminum, fiberglass or plastic.
A home hi-fi loudspeaker system typically consists of two or more drivers, an electrical crossover network to divide the signal by frequency band and route them appropriately to the drivers, and an enclosure that all these components are mounted in. The impedance curve of such a system can be very complex, and the simple formula above does not ...
Since a conventional speaker is similar in construction to a dynamic microphone (with a diaphragm, coil and magnet), speakers can actually work "in reverse" as microphones. Reciprocity applies, so the resulting microphone has the same impairments as a single-driver loudspeaker: limited low- and high-end frequency response, poorly controlled ...
It also includes links to internet articles about PC security and current virus threats and notifies the user when the PC's security is compromised. Sounds and Audio Devices (mmsys.cpl) This panel contains various audio-related functions; Change the speaker volume and type and specify whether to show the volume icon in the notification area.
Block diagram of the signal-flow for a common feedback loop [1]: 118 . Audio feedback (also known as acoustic feedback, simply as feedback) is a positive feedback situation that may occur when an acoustic path exists between an audio output (for example, a loudspeaker) and its audio input (for example, a microphone or guitar pickup).
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Inspiron (/ ˈ ɪ n s p ɪr ɒ n / IN-spirr-on, formerly stylized as inspiron) was a line of consumer-oriented laptop computers, desktop computers and all-in-one computers sold by Dell. [1] The Inspiron range mainly competes against Acer 's Aspire ; Asus 's Transformer Book Flip, VivoBook and Zenbook ; HP 's Pavilion , Stream, and ENVY ; Lenovo ...