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Audio DSP enables 'superior' 3D surround sound

Posted: 03 May 2007 ?? ?Print Version ?Bookmark and Share

Keywords:audio DSP? 3D surround sound? virtual surround?

New Japan Radio Co. Ltd has introduced the NJU26150-19, a DSP employing new virtual surround SRS TruSurround HD/HD4, which is an upgrade from the SRS TruSurround XT developed by SRS Labs Inc.

The growing popularity of terrestrial digital broadcasting, DVDs and 5.1ch surround-compatible TVs and AV systems is accompanied by the increasing use of 5.1ch surround-sound sources in households. Although the complexity of playback systems and cumbersome wiring for 5.1ch surround speaker systems have impeded this evolution, various surround technologies using two front speakers are being developed to address the problems and accommodate the growing demand.

The SRS TruSurround HD features treble enhancement definition (unlike the SRS TruSurround XT), SRS TruBass bass enhancement, and treble correction definition for extra-clear virtual surround across a wide frequency range. Also, unlike SRS TruSurround XT configured for front two-speaker surround, the TruSurround HD4 is configured for fourtwo front and two rearstereo speakers and four-channel amps for dramatically superior surround effect and 3-D acoustic reproduction.

Features of SRS TruSurround HD/HD4 include:

Surround effect superior to SRS TruSurround - For more accurate staging and surround-sound field reproduction, separate processing of front signal and rear signals eliminates interference among both types of signals when front and rear sound output are mixed.

Larger sweet spot - A large sweet spot is a vital factor when listening to speakers in the living room. Apart from the area above the speakers, this new DSP provides a substantial sweet spot extending outward from the speakers.

Clear dialog and stable center sound localization - SRS Dialog Clarity technology is incorporated in the center channel block for the benefit of vocal reproduction. This innovation accounts for the fact that dialog and singing voices are basically output from the center channel.

More natural sound - A six-speaker system and multichannel sound source can virtually reproduce a realistic sound stage with naturally powerful acoustic presence.

The NJU26150-19A helps TVs, mini-component systems and other units with front speakers to reproduce superior 3D surround-sound quality, the company said.

Samples and production quantities are available. Pricing is $5.84 per unit.




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