External Computer Hardware Write-Up
Computer Speakers/Microphone
Connor Whitehouse
Clement Ader is thought to be the first person to demonstrate the first two-channel audio system when he was re-transmitting an Opera performance to an Electrical Exhibition in 1881. Other experiments were conducted to create a stereo sound at Bell in the 1930’s when many microphones were hung above an orchestra while they were playing. Each microphone was connected to an individual loudspeaker in a separate listening room. This was an attempt at recreating the orchestra’s sound in an alternate location. A speaker uses electricity to change the pressure of the air that it sends out to make different sounds. The higher the change in frequency is the higher the pitch of the sound is. The speaker changes the air pressure by using an electromagnet called the voice coil in conjunction with the diaphragm (the dome-like part that we see). The dome is attached to the electromagnet that is magnetically suspended. When electricity is sent through the magnet it moves up and down, moving the dome up and down. This is what changes the air pressure and creates the sound. A microphone works in almost the exact same way but in reverse. The sound that you make moves a diaphragm that disrupts an electric current. This disruption determines the sound that is recorded or produced by whatever the microphone is being used for. Stereo sound has a wide variety of uses today. It is the standard sound type for most headphones and it is used in most standard definition television broadcasts to name a few. The first microphone was invented in 1876 by Emile Berliner and was used as a telephone voice transmitter for the Bell phone company. Along with the invention of the radio came recording mics (Ribbon Microphone) in 1942.Into the 1970’s dynamic and condenser mics were created which can achieve a lower sound level sensitivity and were much clearer than the previous version.
Computer Speakers/Microphone
Connor Whitehouse
Clement Ader is thought to be the first person to demonstrate the first two-channel audio system when he was re-transmitting an Opera performance to an Electrical Exhibition in 1881. Other experiments were conducted to create a stereo sound at Bell in the 1930’s when many microphones were hung above an orchestra while they were playing. Each microphone was connected to an individual loudspeaker in a separate listening room. This was an attempt at recreating the orchestra’s sound in an alternate location. A speaker uses electricity to change the pressure of the air that it sends out to make different sounds. The higher the change in frequency is the higher the pitch of the sound is. The speaker changes the air pressure by using an electromagnet called the voice coil in conjunction with the diaphragm (the dome-like part that we see). The dome is attached to the electromagnet that is magnetically suspended. When electricity is sent through the magnet it moves up and down, moving the dome up and down. This is what changes the air pressure and creates the sound. A microphone works in almost the exact same way but in reverse. The sound that you make moves a diaphragm that disrupts an electric current. This disruption determines the sound that is recorded or produced by whatever the microphone is being used for. Stereo sound has a wide variety of uses today. It is the standard sound type for most headphones and it is used in most standard definition television broadcasts to name a few. The first microphone was invented in 1876 by Emile Berliner and was used as a telephone voice transmitter for the Bell phone company. Along with the invention of the radio came recording mics (Ribbon Microphone) in 1942.Into the 1970’s dynamic and condenser mics were created which can achieve a lower sound level sensitivity and were much clearer than the previous version.
No comments:
Post a Comment