One person shouts. Another person shouts at the same volume. Do their combined shouts make a louder sound or a sound of the same volume?
by 
freefaller
ANSWERS: 6
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The same volume - the pitch and bandwidth of the noise will be different but the volume level the same.
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Well since you can hear a crowd at a stadium further away than you could one person yelling their head off in the same stadium I would say that the combined sound has to be at least a little louder. Of course I dont know all the technicalities and it is just an opinion.
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Mathematically, the sounds add (potentially they cancel out in the artificial example of Bob's). So you typically get a sound twice as loud when measured by instruments... BUT the human ear doesn't work that way. That's why two people shouting doesn't sound twice as loud as one. One person shouting sounds a lot louder than no people shouting. Two people shouting sounds only a bit louder. So your head doesn't explode at football stadium, (thousands of times louder), but it simply sounds louder.
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It would make sense that it makes a louder sound.
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65Db . . . you muppet if i were to have two ice cream vans side by side playing the same tune then the volume wouldn't change!
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Bob Blaylock's answer sums it all; corelated sounds add up by 6dB while uncorelated sounds add up to 3dB. Its simple physics
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