# Why amplitude doesn't affect speed of sound?

If amplitude is the measure of energy in a sound wave -
On increasing amplitude, the medium particles should hit each other in lesser time because they have more force(which increases their speed) and this cycle should repeat and repeat. Eventually, the speed of sound should increase. But that's not what happens.
So what's wrong in this cycle?

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davenn
Gold Member
2019 Award
ahhhh but the the energy of the sound wave attenuates with distance through a medium
because energy is absorbed by the medium

Sound is a pressure wave. The amplitude of sound pressure is much less than ambient athmospheric pressure (see the table). When they become comparable it's called shock wave.

rcgldr
Homework Helper
If amplitude is the measure of energy in a sound wave -
On increasing amplitude, the medium particles should hit each other in lesser time because they have more force(which increases their speed) and this cycle should repeat and repeat. Eventually, the speed of sound should increase. But that's not what happens.
So what's wrong in this cycle?

individual particles of air are being accelerated fater and are moving faster but the speed of the wave itself is the same

grandpa