What Was The Speaker Used In The 1920's
The first speaker ever created was known as the dynamic loudspeaker. It was created in the 1920’s by Edward Kellogg and Chester Rice. The loudspeaker produces a magnetic field which then causes a coil or magnet to move. The coil or magnet is connected to the diaphragm. There are more speakers than just the horn, such as, such as, electrodynamic loudspeaker, flat panel - planar, electrostatic, multi-cell diaphragm and piezoelectric.
Speakers are used to produce sound. Sound is an energy which is created by passing through a gas or liquid medium. Sound is measured in Frequency and Decibels. Decibels is how loud the sound being produced is, the frequency is the quality of the sound that has been produced. Speakers can produce a range of sounds …show more content…
Thomas Edison, Magnavox and Victrola all made an advanced design that performed very well. The main problems with horns was that they did not amplify the sound very well. To produce sound a needle moves up and down, creating a vibration on the clear diaphragm. That vibration pushed air and made a small amount of sound. Sound is then channeled inside of a brass arm. The horn is then used to amplify the sound to a greater amount. (Edison Tech,Web,2015)
The planar speaker is a square speaker that doesn’t require a very big magnet to drive it. The conductor of the speaker is styrofoam which is connected to the diaphragm. The diaphragm moves forward and backwards to produce the sound. This speaker worked better than the original horn because the styrofoam caused the speaker to move easily thus requiring a smaller magnet to drive the speaker.
Next is the electrostatic flat panel speaker or ESL. The ESL uses to metal grids with a diaphragm constructed from a plastic sheet. Graphite is spread throughout those plastic pieces because it is electrically conductive. The grid act as electrodes. The diaphragm has a constant charge and a high audio signal which is produced by the grids. These speakers have a very poor bass response but if you combine it with a subwoofer it will make it into a very good sound
Speakers are used to produce sound. Sound is an energy which is created by passing through a gas or liquid medium. Sound is measured in Frequency and Decibels. Decibels is how loud the sound being produced is, the frequency is the quality of the sound that has been produced. Speakers can produce a range of sounds …show more content…
Thomas Edison, Magnavox and Victrola all made an advanced design that performed very well. The main problems with horns was that they did not amplify the sound very well. To produce sound a needle moves up and down, creating a vibration on the clear diaphragm. That vibration pushed air and made a small amount of sound. Sound is then channeled inside of a brass arm. The horn is then used to amplify the sound to a greater amount. (Edison Tech,Web,2015)
The planar speaker is a square speaker that doesn’t require a very big magnet to drive it. The conductor of the speaker is styrofoam which is connected to the diaphragm. The diaphragm moves forward and backwards to produce the sound. This speaker worked better than the original horn because the styrofoam caused the speaker to move easily thus requiring a smaller magnet to drive the speaker.
Next is the electrostatic flat panel speaker or ESL. The ESL uses to metal grids with a diaphragm constructed from a plastic sheet. Graphite is spread throughout those plastic pieces because it is electrically conductive. The grid act as electrodes. The diaphragm has a constant charge and a high audio signal which is produced by the grids. These speakers have a very poor bass response but if you combine it with a subwoofer it will make it into a very good sound