WooferHound
Well-Known Member
A long time ago I heard that when sound is produced at high volume levels the air is capable of being distorted. The speaker produces pressure waves and vacuum waves as the Cone oscillates forward and backwards. At some point the Vacuum waves become a total vacuum and the sound in the air is distorted as a result. Eventually as you get away from the speakers the volume reduces enough for the air to repair itself.
The problem would be microphone placement, like in front of a guitar amplifier, where you don't want to place the mic in an area that has this total vacuum wave air displacement.
I had heard that the volume that this happens at is about 120 db. Recently I have talked to a sound tech for a major production and he was trying to explain to me that this problem only occurs at a much higher volume of 160 db which may be possible directly in front of a guitar amplifier speaker.
Do any of you guys know what Decibel level this occurs at and how to place a microphone to avoid this high volume air distortion area?
The problem would be microphone placement, like in front of a guitar amplifier, where you don't want to place the mic in an area that has this total vacuum wave air displacement.
I had heard that the volume that this happens at is about 120 db. Recently I have talked to a sound tech for a major production and he was trying to explain to me that this problem only occurs at a much higher volume of 160 db which may be possible directly in front of a guitar amplifier speaker.
Do any of you guys know what Decibel level this occurs at and how to place a microphone to avoid this high volume air distortion area?