Abstract: A stethoscope with a body and a diaphragm comprising a flexible enclosure containing an incompressible liquid suspended in the stethoscope body with a reticulated foam pressure pad located below the diaphragm and inside an inner perimeter of the body. Optionally, the diaphragm has a cap over a top end of the suspended flexible enclosure, preferably made from copper in order to provide antimicrobial properties.

Abstract: Systems and methods for speaker assemblies with wide dispersion patterns are disclosed. In one embodiment, a speaker assembly includes at least two speaker drivers and a diffraction baffle affixed to each speaker driver, where each diffraction baffle includes a baffle face having a diffraction slot positioned over the driver and each diffraction baffle is affixed to and sealed to the driver, the area across each diffraction slot is less than the surface area of the driver, each diffraction slot provides a path for substantially all of the acoustic pressure waves produced by the speaker driver to propagate away from the driver and the acoustic pressure waves are within a frequency range determined by the characteristics of the driver, and the width of each diffraction slot in the horizontal direction is equal to the wavelength of a predetermined target frequency.

Abstract: A stethoscope with a body and a diaphragm comprising a flexible enclosure containing an incompressible liquid suspended in the stethoscope body with a reticulated foam pressure pad located below the diaphragm and inside an inner perimeter of the body. Optionally, the diaphragm has a cap over a top end of the suspended flexible enclosure, preferably made from copper in order to provide antimicrobial properties.

Abstract: A stethoscope with a body; a diaphragm; and an integral annular axially compliant suspension. The annular axially compliant suspension is located below the diaphragm and inside an inner perimeter of the body. An axially compliant reticulated foam pressure pad is located within the annular suspension, and the diaphragm is a very thin foil, preferably made from copper, to provide antimicrobial properties.

Abstract: A first embodiment comprises a stethoscope with a body; a diaphragm; and an integral annular axially compliant suspension. The annular axially compliant suspension is located below the diaphragm and inside an inner perimeter of the body. Optionally, an axially compliant reticulated foam pressure pad is located within the annular suspension, and the diaphragm is a very thin foil, preferably made from copper, to provide antimicrobial properties. In a second embodiment, a stethoscope with a body and a diaphragm having a flexible enclosure containing an incompressible liquid suspended in the stethoscope body and a reticulated foam pressure pad below the diaphragm and within the body is disclosed. Optionally, the diaphragm has a cap over a top end of the suspended flexible enclosure, preferably made from copper to provide antimicrobial properties.

Abstract: A loudspeaker includes a horn including a first end panel, a second end panel, a first side panel, and a second side panel. Edges of at least the first and second side panels define a diffraction slot opening. The first and second side panels are each fabricated from a sheet of flexible material held in a stressed, curved shape by at least a rigid support member. The panels are designed by an automated process based on a number of electro-acoustic transducers to be used in a loudspeaker, horizontal and vertical coverage angles for the loudspeaker, and a wall length for a horn of the loudspeaker.

Abstract: Systems and methods for speaker assemblies with wide dispersion patterns are disclosed. In one embodiment, a speaker assembly includes at least two speaker drivers and a diffraction baffle affixed to each speaker driver, where each diffraction baffle includes a baffle face having a diffraction slot positioned over the driver and each diffraction baffle is affixed to and sealed to the driver, the area across each diffraction slot is less than the surface area of the driver, each diffraction slot provides a path for substantially all of the acoustic pressure waves produced by the speaker driver to propagate away from the driver and the acoustic pressure waves are within a frequency range determined by the characteristics of the driver, and the width of each diffraction slot in the horizontal direction is equal to the wavelength of a predetermined target frequency.

Abstract: In general, in some aspects, a loudspeaker includes a horn including a first end panel, a second end panel, a first side panel, and a second side panel. Edges of at least the first and second side panels define a diffraction slot opening. A plurality of manifold components each has an output opening coupled to the diffraction slot opening. The output openings of the plurality of manifold components together constitute a diffraction slot source at the diffraction slot opening. A plurality of electro-acoustic transducers are each coupled to an input opening of one of the manifold components.

Abstract: A loudspeaker includes a horn including a first end panel, a second end panel, a first side panel, and a second side panel. Edges of at least the first and second side panels define a diffraction slot opening. The first and second side panels are each fabricated from a sheet of flexible material held in a stressed, curved shape by at least a rigid support member. The panels are designed by an automated process based on a number of electro-acoustic transducers to be used in a loudspeaker, horizontal and vertical coverage angles for the loudspeaker, and a wall length for a horn of the loudspeaker.

Abstract: A loudspeaker includes a horn including a first end panel, a second end panel, a first side panel, and a second side panel. Edges of at least the first and second side panels define a diffraction slot opening. The first and second side panels are each fabricated from a sheet of flexible material held in a stressed, curved shape by at least a rigid support member. The panels are designed by an automated process based on a number of electro-acoustic transducers to be used in a loudspeaker, horizontal and vertical coverage angles for the loudspeaker, and a wall length for a horn of the loudspeaker.

Abstract: A loudspeaker includes a horn including a first end panel, a second end panel, a first side panel, and a second side panel. Edges of at least the first and second side panels define a diffraction slot opening. The first and second side panels are each fabricated from a sheet of flexible material held in a stressed, curved shape by at least a rigid support member. The panels are designed by an automated process based on a number of electro-acoustic transducers to be used in a loudspeaker, horizontal and vertical coverage angles for the loudspeaker, and a wall length for a horn of the loudspeaker.

Abstract: A loudspeaker includes a horn including a first end panel, a second end panel, a first side panel, and a second side panel. Edges of at least the first and second side panels define a diffraction slot opening. The first and second side panels are each fabricated from a sheet of flexible material held in a stressed, curved shape by at least a rigid support member. The panels are designed by an automated process based on a number of electro-acoustic transducers to be used in a loudspeaker, horizontal and vertical coverage angles for the loudspeaker, and a wall length for a horn of the loudspeaker.

Abstract: In general, in some aspects, a loudspeaker includes a horn including a first end panel, a second end panel, a first side panel, and a second side panel. Edges of at least the first and second side panels define a diffraction slot opening. A plurality of manifold components each has an output opening coupled to the diffraction slot opening. The output openings of the plurality of manifold components together constitute a diffraction slot source at the diffraction slot opening. A plurality of electro-acoustic transducers are each coupled to an input opening of one of the manifold components.

Abstract: A line array loudspeaker, including a first plurality of acoustic drivers each acoustic driver comprising an axis, the first plurality of acoustic drivers arranged so that the axes of first plurality of acoustic drivers are coplanar in a first plane and so that a straight line intersects each axis at a same position on each of the first plurality of acoustic drivers, and a second plurality of acoustic drivers each acoustic driver comprising an axis, the second plurality of acoustic drivers arranged so that the axes of second plurality of acoustic drivers are coplanar in a second plane and so that the straight line intersects each axis at a same position on each of the second plurality of acoustic drivers, in which the first plurality and the second plurality arranged so that the first plane intersects with the second plane along a straight intersection line.

Abstract: A loudspeaker includes a horn including a first end panel, a second end panel, a first side panel, and a second side panel. Edges of at least the first and second side panels define a diffraction slot opening. The first and second side panels are each fabricated from a sheet of flexible material held in a stressed, curved shape by at least a rigid support member. The panels are designed by an automated process based on a number of electro-acoustic transducers to be used in a loudspeaker, horizontal and vertical coverage angles for the loudspeaker, and a wall length for a horn of the loudspeaker.

Abstract: An equalizer/mixer receives an input signal from a musical source and Equalizes the input signal based on the musical source using equalization parameters Associated with the musical source. User-adjustable equalization controls may be Applied where the equalization parameters defining the controls are associated with the Musical source.

Abstract: A line array electroacoustical transducing system includes at least first and second line arrays detachably secured in electrical and mechanical coupling relationships. The assembly may be detachably secured to a base having an amplifier in electrical and mechanical coupling relationships.

Abstract: A line array loudspeaker system including a large number of small, regularly and closely spaced acoustical drivers. Each of the acoustical drivers receives essentially the same audio signal. In another embodiment, a line array includes a plurality of portable line array modules that are constructed and arranged to be attached end to end to form a longer line array.

Abstract: A line array loudspeaker, including a first plurality of acoustic drivers each acoustic driver comprising an axis, the first plurality of acoustic drivers arranged so that the axes of first plurality of acoustic drivers are coplanar in a first plane and so that a straight line intersects each axis at a same position on each of the first plurality of acoustic drivers, and a second plurality of acoustic drivers each acoustic driver comprising an axis, the second plurality of acoustic drivers arranged so that the axes of second plurality of acoustic drivers are coplanar in a second plane and so that the straight line intersects each axis at a same position on each of the second plurality of acoustic drivers, in which the first plurality and the second plurality arranged so that the first plane intersects with the second plane along a straight intersection line.

Abstract: A line array electroacoustical transducing system includes at least first and second line arrays detachably secured in electrical and mechanical coupling relationships. The assembly may be detachably secured to a base having an amplifier in electrical and mechanical coupling relationships.