Megaphone
A megaphone, speaking-trumpet, bullhorn, or loud hailer is a portable, usually hand-held, cone-shaped acoustic horn used to amplify a person’s voice or other sounds and direct it in a given direction. The sound is introduced into the narrow end of the megaphone, by holding it up to the face and speaking into it, and the sound waves radiate out the wide end. The megaphone increases the volume of sound by increasing the acoustic impedance seen by the vocal cords, matching the impedance of the vocal cords to the air, so that more sound power is radiated. It also serves to direct the sound waves in the direction the horn is pointing. It somewhat distorts the sound of the voice because the frequency response of the megaphone is greater at higher sound frequencies.
Since the 1960s the voice-powered acoustic megaphone described above has been replaced by the electric megaphone, which uses electric power to amplify the voice.
History
The initial inventor of the speaking trumpet is a subject of historical controversy; both Samuel Morland and Athanasius Kircher invented megaphones around the same time in the 17th century. Morland, in a work published in 1655, wrote about his experimentation with different horns. His largest megaphone consisted of over 20 feet of copper tube and could reportedly project a person's voice a mile and a half.
Megaphone (disambiguation)
Megaphone could mean the following:
Megaphone (band)
Megaphone is an American rock band from Orlando, Florida. They formed in late 2004 when founding member Matt Bloodwell (former drummer of the well known Orlando band Precious) traded his drums for a guitar and recruited local rock musicians from the Orlando music scene. Megaphone is: Paul Smith - Lead guitar, former touring guitarist for Seven Mary Three - Mammoth/Atlantic, and Vonray - Elektra Records. James Woodrich - Bass guitar, formerly of My Hotel Year - Doghouse Records. Scott Smith - Drummer, formerly of Cori Yarckin and newest member of the band joining in March 2007.
Overview
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Beautiful World
by: GS MegaphoneI'm lying in bed, but I can't sleep.
It's like I'm locked in this bed
On the greatest night you've made so far.
I take a walk outside beneath the stars,
And as I look all around me,
I remember how in love we are.
It's a beautiful world. Â What a great idea.
Your beautiful song is all I can hear.
I see the wind moving through the trees,
And it reminds me of how your spirit moves in me.
I lie in the grass, and stare at the sky,
And thought I've seen it a thousand times
It looks new tonight.
It's a beautiful world. Â What a great idea.
Your beautiful song is all I can hear.
Your beautiful colors surrounding me.
Your beautiful art is all I can see. Â It's a beautiful world.
Good night my prince. Â I'm going to try to rest.