- #1
fisico30
- 374
- 0
Hello Forum.
I have two basic sound questions:
I know sound (large wavelength) diffracts a lot when it exits an aperture. But if someone is speaking and he/she is not facing us we still hear them, even if we are in an empty field.
Does sound diffract so much that it ends up even behind us?
2. If we created a flow of compressed air in front of a speaker playing some music, would the receiving microphone simply detect the noise from the compressed air or would the compressed air disrupt the air molecule behavior (sound coming out of the speakers) and change it?
After all, sound is simply compressions and rarefactions of air density, i.e. molecules that bump into each other...
If we push some air in front of the microphone we should be able to randomize the air molecules motion and not here the music...
thanks,
fisico30
I have two basic sound questions:
I know sound (large wavelength) diffracts a lot when it exits an aperture. But if someone is speaking and he/she is not facing us we still hear them, even if we are in an empty field.
Does sound diffract so much that it ends up even behind us?
2. If we created a flow of compressed air in front of a speaker playing some music, would the receiving microphone simply detect the noise from the compressed air or would the compressed air disrupt the air molecule behavior (sound coming out of the speakers) and change it?
After all, sound is simply compressions and rarefactions of air density, i.e. molecules that bump into each other...
If we push some air in front of the microphone we should be able to randomize the air molecules motion and not here the music...
thanks,
fisico30