Tom Thiel,
In my work in designing endpins for cello and endbuttons for violins I met a geophysicist who showed me and explained to me how my devices actually work. I knew they sounded better but was uncertain as to why. She has a patent as how to remove a polarity of shear the mechanical wave motion that causes the air to vibrate. One polarity of shear can create interference in the other polarity, only one is needed to create vibration of air. Not sure if it is in the vertical or horizontal plane. With the removal of this single polarity you can see in the amplitude response a net gain of over 1 db. This was shown on all the harmonics of an 85 hz note out to 18khz. This interference is like a parasite that travels the surfaces and at some point becomes part of the music. There is a transition or handoff between a mechanical surface shear wave and the air that lays on them and becomes the sounds we hear.
In the case of speakers I feel I have a large understanding of how to remove interfering energy from the speaker cabinet because there are devices that can help direct interference out and off the box and into the the floor.
What I am trying to understand and you are working with I think, is the transition of the mechanical wave portion and how the now moving air is launched off the solid vibrating surface. How to make that air less turbulent at takeoff?
Tom
In my work in designing endpins for cello and endbuttons for violins I met a geophysicist who showed me and explained to me how my devices actually work. I knew they sounded better but was uncertain as to why. She has a patent as how to remove a polarity of shear the mechanical wave motion that causes the air to vibrate. One polarity of shear can create interference in the other polarity, only one is needed to create vibration of air. Not sure if it is in the vertical or horizontal plane. With the removal of this single polarity you can see in the amplitude response a net gain of over 1 db. This was shown on all the harmonics of an 85 hz note out to 18khz. This interference is like a parasite that travels the surfaces and at some point becomes part of the music. There is a transition or handoff between a mechanical surface shear wave and the air that lays on them and becomes the sounds we hear.
In the case of speakers I feel I have a large understanding of how to remove interfering energy from the speaker cabinet because there are devices that can help direct interference out and off the box and into the the floor.
What I am trying to understand and you are working with I think, is the transition of the mechanical wave portion and how the now moving air is launched off the solid vibrating surface. How to make that air less turbulent at takeoff?
Tom