Patent Review: Passive Cardioid Speaker

Renowned audio speaker design, David W. Gunness, now with Fulcrum Acoustic, and previously with Electro-Voice and Eastern Acoustic Works, is no stranger to this field of research where he holds numerous patents.This review is a fascinating read, especially given that Fulcrum has already proven the validity of the proposed designs in actual products. It seems clear that Gunness achieved “a very good design that should advance the art in the category of cardioid devices,” as Croft notes.

Fulcrum Acoustic announced the formation of Fulcrum Immersive as the result of Fulcrum Acoustic's acquisition of Concord, NC-based Venueflex and the company's software, DSP, and related technologies. Venueflex developed a digital signal processor system that learns a venue's acoustical environment and provides optimized processed audio with greater gain-before-feedback. The company's technology evolved as a foundation for immersive audio and active acoustics applications.

At InfoComm 2015, Fulcrum Acoustic launched an important addition to the company’s rapidly expanding product line, the FL283 line array module. This new line array design from David Gunness features a passive cardioid configuration to counteract low frequency radiation from the rear of the array.

PreSonus StudioLive AI Active Integration are now the first Dante-enabled active loudspeakers on the market. PreSonus is already shipping the promised SL-Dante-SPK upgrade option card, offering connection for Dante audio networking and remote control via the free SL Room Control application for StudioLive AI-series loudspeakers.