Properties of sound
A sound wave is a mechanical wave (or mechanical vibration) that transit through media such as gas (air), liquid (water), and solid (wood).
Quality Of Sound
A sound or a sound wave is defined as the energy produced due to the vibrations of particles in a medium. When any medium produces a disturbance or vibrations, it causes a movement in the air particles which produces sound waves. Molecules in the air vibrate about a certain average position and create compressions and rarefactions. This is called pitch which is defined as the frequency of sound. The frequency is defined as the number of oscillations in pressure per second.
Categories of Sound Wave
People perceive sound in different ways, like a medico student takes sound as vibration produced by objects reaching the human eardrum. A physicist perceives sound as vibration produced by an object, which produces disturbances in nearby air molecules that travel further. Both of them describe it as vibration generated by an object, the difference is one talks about how it is received and other deals with how it travels and propagates across various mediums.
![2) You want to perform an underwater speed of sound experiment (similar to that done today) to check the
speed of sound in water at a swimming pool. You know this speed to be approximately 1500 m/s. You will tap
one wall under water on one side of the pool with a hammer and record with an underwater microphone at the
opposite wall 25 m away.
2a) What is the duration of each
reflection interval (how long it
takes for the sound pulse to go 1
roundtrip?
2b) If you want to capture about
100 data points within each
reflection interval, what sampling
rate should you use in terms of
samples/second?
2c) If you want to capture about
100 data points within each
reflection interval, what sampling
rate should you use in terms of
seconds/sample?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F3a5e8787-53bc-4ea8-9359-4f8c331cd409%2F387e0cbb-acbd-4643-85f4-946cfb021782%2Flsemzur_processed.png&w=3840&q=75)
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