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The ThinkPad X-series laptops released in 2011 by Lenovo were the X120e, X220, X220i, X220 Tablet and X1. In some models the keyboard is significantly changed: The extra buttons for mute, volume up, and volume down are moved under Fn+Fxx keys. The shape of the keys and the distance between keys are changed (Chiclet or Island-style keyboard).
Formerly an IBM brand, Lenovo acquired the ThinkCentre desktop brand following its purchase of IBM's Personal Computing Division (PCD) in 2005. Following its acquisition of IBM's PCD, Lenovo has released M-series desktops in multiple form factors , ranging from traditional tower, small form factor , to ultra small form factor , and all-in-ones ...
A 3.5 mm microphone blocker with just TS channel is enough to disconnect the internal microphone, but most commercial microphone blockers have TRRS connections which in theory makes them headset blockers that in smartphones also disconnect the internal speaker in media player software because they will try to connect to the headphones, while ...
The boundary microphone can be used as a piano mic by placing it inside the piano lid, an approach which can obtain better pickup of the piano's mix of sharp percussive transients and gentle undertones than other microphone options. Boundary mics are used on hockey boards for body check sound effects. They are also commonly used to record full ...
The carbon button microphone (or sometimes just a button microphone), uses a capsule or button containing carbon granules pressed between two metal plates like the Berliner and Edison microphones. A voltage is applied across the metal plates, causing a small current to flow through the carbon.
The microphone generates its own voltage and needs no power. Devices that use a self-powered microphone: usually a condenser microphone with an internal battery-powered amplifier. Devices that use a plug-in powered microphone: an electret microphone containing an internal FET amplifier. These provide a good quality signal in a very small ...
Variants of the cup mute include the mic-a-mute and the buzz-wow mute. [31] The mic-a-mute, so named because it is usually played close to a microphone, has a rubber rim on the cup and felt lining on the inside, creating a richer sound. [32] The buzz-wow mute has resonators on the end which produce a buzzing effect, similar to a kazoo. [33]
Carbon microphone from Western Electric telephone handset, around 1976. A disassembled Ericsson carbon microphone with carbon particles visible. The carbon microphone, also known as carbon button microphone, button microphone, or carbon transmitter, is a type of microphone, a transducer that converts sound to an electrical audio signal.