Question

Is there any way to hear the sound without shouting from a long distance?

Answer 1

Answer:

your answer :-

Explanation:

I was wondering, if a person climbs a tower and shouts at the top of his lungs how much distance would the sound travel ? Would it reach someone 1km far? Assuming that there are no tall buildings in the way and the wind is still.

Gabriel Golfetti's answer assumes no dissipation. In reality, atmospheric attenuation is quite important for this calculation. According to Engineering Acoustics/Outdoor Sound Propagation: Attenuation by atmospheric absorption (Wikibooks), dissipation in the atmosphere exponentially decreases the sound's intensity with distance, which leads to a linear reduction in the loudness of the sound in dB. Therefore, the loudness of the sound will actually be

L=88dB−20log10(r0.3m)−ar

Answer 2

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You take a big breath in – expanding your lungs down and your abdomen out – and then you force all that air out on a “ha.” This exercise is built for projection. You are using all your air at once on one sound so you can force that sound out and be really loud with it.