it is unclear what you mean. One form of 'compression' would be the dopplar effect whereby a object producing sound is moving towards the listener. The sound heard by the listener is of a higher frequency than the sound that is produced.
Nothing. That IS how a sound wave is propagated.
As sound travels, air molecules are compressed and rarefied in a wave-like pattern. When a sound wave passes through a medium like air, the molecules vibrate back and forth in the direction of the wave, transmitting the sound energy. This vibration causes changes in pressure that our ears detect as sound.
A longitudinal wave such as a sound wave.
The sound gets softer.
The denser areas of a sound wave are called compressions. These are regions where air particles are compressed together, resulting in higher pressure and increased density.
it changes
If the amplitude of a sound wave increases, the sound will become louder. This is because amplitude directly correlates with the intensity or volume of the sound.
The greater the amplitude of a sound wave the louder the sound.
If the amplitude of a sound wave is doubled, the intensity of the sound wave will increase by a factor of four. This is because intensity is proportional to the square of the amplitude of the wave.
A high pitch sound wave would have a higher frequency, with closely packed wave crests. This would appear as waves that are more tightly compressed together in a graphical representation.
As the sound wave travels through the air, the air particles vibrate back and forth in the direction of the wave, transferring the sound energy.
Compression happens during the part of the sound wave where the air particles are pushed closer together, resulting in an increase in air pressure. This creates a region of higher pressure within the sound wave, causing the compression of the air particles.