Directivity pattern control waveguide for a speaker, and speaker including a directivity pattern control waveguide

A directivity pattern control (DPC) waveguide transducer for a speaker, the DPC waveguide having a major axis of propagation, the DPC waveguide transducer comprising:

• a body comprising:
• a first portion including a substantially flat surface in a first plane intersecting the major axis of propagation;
• a second portion including a horn surface adjacent to the flat surface, the horn surface being contoured from a throat to a mouth in a substantially horn shape;
• and
• a tweeter aperture at least substantially formed by the first portion,
• the tweeter aperture being at least substantially in the first plane, and
• the throat being at least substantially in a second plane, the second plane intersecting the major axis of propagation and being offset from the first plane along the major axis of propagation;
• a first tweeter coupled to the body substantially adjacent to the throat, the first tweeter to propagate a first sound radiation toward the throat, through the second portion, and exiting the mouth in vertical and horizontal directivities based on the horn surface;
• and
• a second tweeter coupled to the body substantially adjacent to the tweeter aperture, the second tweeter to propagate a second sound radiation toward the tweeter aperture and not being at least substantially controlled by the second portion,
• the second tweeter to support additional power handling to the first tweeter thereby increasing sensitivity and reducing compression for the DPC waveguide transducer, and
• the second tweeter being offset from the first tweeter, via the tweeter aperture and the throat, respectively, to allow for time alignment and further beamforming of the DPC waveguide transducer thereby increasing beamforming sensitivity.