Thinnest soundbar uses Gorilla Glass as loudspeaker transducer element

May 16, 2014 // By Graham Prophet
Haptic and flat-screen audio specialist Redux Labs has unveiled the market’s thinnest soundbar for high-end HDTVs, combining a sleek look and with “best ever” audio fidelity.

The 1,230-mm-wide soundbar has been sized to match leading 55-inch TVs and uses Redux’s SurfaceSound technology to deliver ultra-high fidelity audio quality from a 0.7mm panel of Corning Gorilla Glass.

The company is seeking to license the technology, which scales to match any size of TV on the market today, to leading audio equipment and TV manufacturers. James Lewis, CEO said: “The wall mounted glass-front sound bar would have the same sleek looks as leading manufacturers are designing into their premium range TVs. We’ve also carried out subjective comparisons with high-end sound bars and sound-plinths, and this low cost design delivers an audio fidelity that competes with or out-performs products currently costing around $1,000.”

Redux has attached its patented inertial audio transducers to the Gorilla Glass. These drive the sound directly from the glass, eliminating the need for ports, vents, grilles and other acoustic features from the sealed enclosure. Full audio frequency drive into the transducers creates microscopic bending waves in the surface of the glass. Left/centre/right channels are rendered so that the person watching TV will hear a broad sound stage with the clear dialogue in the centre, and the ambient sounds spatialised throughout the background. High frequencies reach over 20 kHz, with low frequencies going below 100 Hz. The sound bar design enables sound levels that will be very loud in even the largest of living rooms.

The process of chemically strengthening glass – typically used as the display cover glass in smartphones and tablets – gives the material attributes that are well suited to Redux SurfaceSound audio technology (also known as Distributed Mode Loudspeakers). The natural damping of the glass, combined with engineered damping in the sound bar system-level design allows well separated stereo sound, and a sound stage that works faithfully with the audio production, whether on a movie or a music track.

The glass sound bar demonstration is a simple enclosure that would have low