Acoustics is the interdisciplinary science that deals with the study of all mechanical waves in gases, liquids, and solids including vibration, sound, ultrasound and infrasound. Applications of acoustics are for instance the audio and noise control industries.
5
votes
8answers
2k views
Doppler's effect use
While i was in high-school i learn't the Doppler's Effect which if i remember correctly is:
The Apparent change in the frequency of sound caused due the relative motion between the sound and the ...
10
votes
4answers
4k views
How can you focus sound?
I saw this TED talk and I am curious as to how the sound is focused on the general level. Can anyone explain this or does anyone have any good articles?
10
votes
4answers
956 views
How does a steady wind flow generate sound?
When a wind blow through sharp edge, say, edge of a paper, you can see the vibration of the paper and hear the sound.
For this type of oscillation, it should be a damped oscillation with external ...
3
votes
3answers
1k views
What is the relation of sound propagation to air pressure?
Hi there i am wondering, air is making sound propagate. So in vacuum there is no sound. but what is the relation of pressure to sound volume? is it linear?
if i have a source of sound and lets say i ...
14
votes
4answers
772 views
What determines the pitch of an explosion?
It's bonfire weekend here in the UK, and everybody is intent on shooting fireworks.
I was wondering, what determines the pitch of the sound produced by an explosion?
The sound has clearly a ...
6
votes
5answers
2k views
Why does water make a sound when it is disturbed?
When I disturb a body of water, what causes the familiar "water moving" sound?
16
votes
6answers
1k views
Fourier transformation in nature/natural physics?
I just came from a class on Fourier Transformations as applied to signal processing and sound. It all seems pretty abstract to me, so I was wondering if there were any physical systems that would ...
7
votes
4answers
3k views
What is sound and how is it produced?
I've been using the term "sound" all my life, but I really have no clue as to what sound exactly is or how it is created. What is sound? How is it produced? Can it be measured?