Audio coming out of speakers and headphones

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ДЇrench engineer Ernest Mercadier patented a set of in-ear headphones in 1891, Mercadier was awarded U.S. Subscribers to the service could listen to the performance through a pair of massive earphones that connected below the chin, held by a long rod. By the 1890s the first device that is unmistakably a headphone was made by a British company called Electrophone, which created a system allowing their customers to connect into live feeds of performances at theaters and opera houses across London. There were several iterative products that were predecessors to the 'hands-free' headphones. Headphones grew out of the need to free up a person's hands when operating a telephone. 2.1 Applications for audiometric testing.The latter two types of employees use headphones with an integrated microphone.

#AUDIO COMING OUT OF SPEAKERS AND HEADPHONES PROFESSIONAL#

Headphones are also used by people in various professional contexts, such as audio engineers mixing sound for live concerts or sound recordings and DJs, who use headphones to cue up the next song without the audience hearing, aircraft pilots and call center employees. As a result of the Walkman effect beginning in the 1980s, headphones started to be used in public places such as sidewalks, grocery stores, and public transit.

#AUDIO COMING OUT OF SPEAKERS AND HEADPHONES BLUETOOTH#

Some stereo earbuds are wireless, using Bluetooth connectivity to transmit the audio signal by radio waves from source devices like cellphones and digital players. Headphones that use cables typically have either a 1/4 inch (6.35mm) or 1/8 inch (3.5mm) phone jack for plugging the headphones into the audio source. Headsets designed for telephone use typically cannot reproduce sound with the high fidelity of expensive units designed for music listening by audiophiles. Headphones exhibit a range of different audio reproduction quality capabilities. Initially the audio quality was mediocre and a step forward was the invention of high fidelity headphones. The first headphones were developed in the late 19th century for use by telephone operators, to keep their hands free.

#AUDIO COMING OUT OF SPEAKERS AND HEADPHONES PORTABLE#

Headphones connect to a signal source such as an audio amplifier, radio, CD player, portable media player, mobile phone, video game console, or electronic musical instrument, either directly using a cord, or using wireless technology such as Bluetooth, DECT or FM radio. In the context of telecommunication, a headset is a combination of headphone and microphone. A third type are bone conduction headphones, which typically wrap around the back of the head and rest in front of the ear canal, leaving the ear canal open. Another type, known as earbuds or earpieces consist of individual units that plug into the user's ear canal. Circumaural ('around the ear') and supra-aural ('over the ear') headphones use a band over the top of the head to hold the speakers in place. Headphones are also known as earspeakers, earphones or, colloquially, cans. Headphones let a single user listen to an audio source privately, in contrast to a loudspeaker, which emits sound into the open air for anyone nearby to hear. They are electroacoustic transducers, which convert an electrical signal to a corresponding sound.

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Audio coming out of speakers and headphones