Infinite Algorithms

Algorithms for Consumer Electronics, Audio, Video, Imaging, and Wireless  


                                     Products


 

Home

Algorithms Galore!

How We can Help

About Us

Video

Audio

Imaging

Digital Cinema

Tutorials

Products

Publications

Patents

Clients

Design Gallery

Awards

Contact Us

Useful Links

 

Flat panel Audio Array Surround Sound System

As worldwide shipments of TVs exceed 200 million units per year, a significant shift in  TV size is taking place. While the average screen size is increasing, most TVs are also becoming thin and flat. The old cathode ray tube technology is being replaced by Plasma and LCD with OLED on the horizon. This leads to power-efficient, brighter displays with high contrast ratios and a very large number of pixels. While this is all very good for the consumers' eyes, it is bad news for their ears.

For the past twenty five years, TVs had only two channel stereo sound. When HDTV broadcasting became available, it offered the potential for excellent surround sound quality, as did digital cable, digital satellite, DVD and Blu-ray disc players. Yet TV makers kept on building the TVs with only two channel audio.

When the flat panels arrived, TV makers embraced the "thin" paradigm by providing small speakers and even smaller amplifiers to drive them. In many designs, the speakers are hidden behind tiny grilles that muffle the sound. In some cases, the speakers face downward, backwards or sideways. And  they sound terrible!

Driven by flat TV designs, the thin flat speakers are here to stay. The challenge is to improve the sound quality and provide surround sound capability  within the confines of the thin world of TVs. The ideal solution is to package audio and video together so that the end consumer does not have to deal with additional components, remote controls and associated installation, wiring, room remodeling problems.

We applied our algorithmic know-how to this problem and have found an attractive solution with good sound quality and great surround sound imaging. It is power-efficient and compact enough to be placed inside a flat panel TV's thin frame - either vertically or horizontally or in both directions. There is nothing quite like it today and we believe it will change the way TVs are made in the near future.

Our design uses a row and/or column of small speakers (called "arrays"), no more than an inch in diameter and drives each of them with a slightly different signal. By driving each one differently, we can control how the sound emerges from the array, and therefore how it sounds to the listener. The resulting surround sound image is large, wide, crisp and clear. It accurately reproduces the well-crafted sound effects that today's TV and movie studios create, so that the TV viewing experience is everything it should be.

We have designed an audio array system with the following characteristics:

  • Compact size to fit into a thin flat panel TV

  • Compatible with industrial designs with thin bezels and thin frames

  • Light weight with simple cavity enclosures

  • Customizable physical size

  • Customizable number of drivers

  • Customizable type of drivers - dynamic, ceramic or electrostatic or silicon

  • Customizable mounting of the array - vertical, horizontal or both

  • Excellent sound quality with surround sound formats 5.1 / 6.1 / 7.1 with the option to upgrade to more channels

  • Phase aligned Center and Bass

  • Bass boost with external sub woofer

  • Matched tone controls

  • Wide and large surround sound with ambiance

  • Largely insensitive to room geometry

  • Controllable surround sound mapping

  • Energy efficient - Fits into flat panel TV power budget

  • Good sound volume with low power dissipation

  • Cost-effective design

  • Plug-n-Play replacement for existing stereo system in the TV

  • Efficient interface to HDTV codecs and HDMI receivers

  • Compact, modular, integrated hardware, one-stop solution
     

Contact us for details. We have a talented hardware team capable of designing and delivering systems according to your needs. Here is a sample design: