AAH -travelling sound
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12 Terms
what is a free field
a region where there are no reflected sound waves
In regards to reflection, what is equal to the angle of incidence
angle of reflection
How long does a echo take to bounce back off a object that is 340m away
2 seconds
what is reverberation
reflection of the sound after the source has ceased
why can reverberation be good
early reflections can increase loudness without reducing clarity
what is reverberation time
the time it takes for sound to decay by 60dB
Give 4 examples of relceting objects
masonry
wood- smooth panels
smooth concrete
glass/ tile
give 4 examples of absorbing materials
carpets
soft ceiling tiles
rigid foam
people
Is this constructive of destructive interference
contructive
is this contructive or destructive interference
destructive
what is destructive interference
if a wave hits an acoustically reflective surface and the reflected wave is exactly out of phase