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The directivity (narrowness) of all wave producing sources depends on the size of the source, compared to the wavelengths it generates. Audible sound has wavelengths ranging from a few inches to several feet, and because these wavelengths are comparable to the size of most loudspeakers, sound generally propagates omnidirectionally. Only by creating a sound source much larger than the wavelengths it produces can a narrow beam be created. In the past, loudspeaker manufacturers have created large speaker panels or used reflective domes to provide some directivity but, due to the sound's large wavelengths, the directivity of these devices is still extremely weak.
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∙ 14y ago
Sound is projected by vibrating objects, such as vocal cords or speakers, creating sound waves that travel through a medium, typically air. The sound waves then reach our ears, where they are converted into electrical signals that our brain interprets as sound. The direction and intensity of the sound can be influenced by the shape and materials of the object creating the sound.
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What is an example of something that transmit sound?
An example of something that transmits sound is a speaker. It converts electrical signals into sound waves which are then projected into the environment for us to hear.
Does a violin transforms electrical energy into sound energy and why?
No, a violin does not transform electrical energy into sound energy. Instead, sound is produced on a violin by the vibrations of the strings when they are bowed or plucked. The sound waves are then amplified and projected by the body of the violin.
How does a mandolin produce sound?
A mandolin produces sound through the vibration of its strings. When plucked, the strings vibrate, and the sound is amplified by the instrument's soundboard. The sound then resonates inside the hollow body of the mandolin before being projected out through the soundhole.
How is sound produced in a veena?
In a veena, sound is produced when the strings are plucked or strummed by the player's fingers. The vibration of the strings creates sound waves that resonate within the hollow body of the instrument, amplifying the sound before it is projected out through the sound hole. The resonating strings and the design of the body work together to produce the unique and rich sound of the veena.
How is sound produced on the cornet?
Sound on the cornet is produced by the player buzzing their lips into the mouthpiece, which creates vibrations. These vibrations travel through the instrument's tubing, amplifying and shaping the sound before it is projected out of the bell. By controlling the air pressure and the positioning of their lips, the player can produce different pitches and tones.
What is a pelvic ultra sound?
The sound waves are projected into the pelvis, and measure how they reflect--or echo--back from the different tissues.
What is an example of something that transmit sound?
An example of something that transmits sound is a speaker. It converts electrical signals into sound waves which are then projected into the environment for us to hear.
Does a violin transforms electrical energy into sound energy and why?
No, a violin does not transform electrical energy into sound energy. Instead, sound is produced on a violin by the vibrations of the strings when they are bowed or plucked. The sound waves are then amplified and projected by the body of the violin.
How does a mandolin produce sound?
A mandolin produces sound through the vibration of its strings. When plucked, the strings vibrate, and the sound is amplified by the instrument's soundboard. The sound then resonates inside the hollow body of the mandolin before being projected out through the soundhole.
What is the meaning of projected and non projected visuals?
Difference between projected and non- projected instructional aids
What are projected media?
Projected media is media that is projected onto the wall or a screen. Schools use projected media as a teaching tool.
Projected and non projected teaching aids?
projected aids
What does projected arrival mean?
projected arrival
What is the meaning of projected expenditure?
projected expenditure
How do you find projected profit?
(Projected revenue) - (Extended Cost) (Projected revenue) - (Extended Cost)
What are the advantages of projected materials?
projected materials advantage
What is indias projected population?
It is now projected as 1.175Billion
