MP3 specification gets new surround-sound features

Fraunhofer and Thomson have announced two new enhancements to MP3 Surround software.

The inventors of MP3 are taking portable music listening one step further with the introduction of two surround sound enhancements.

Germany's Fraunhofer Institute for Integrated Circuits (Fraunhofer IIS) and France's Thomson SA have added two new elements to MP3 Surround demonstration software: MP3 SX (MP3 Stereo eXtended), which enhances MP3 stereo files for multichannel playback; and Ensonido, which provides portable MP3 Surround sound using stereo headphones, the companies announced Tuesday.

Demo software containing both enhancements can be downloaded for free at: http://www.all4mp3.com.

MP3 Surround, which was developed in 2004 by Fraunhofer IIS in collaboration with Agere Systems and is licensed by Thomson, enables high-quality surround sound at bit rates comparable to those currently used to encode stereo MP3 material.

The MP3 XS enhancement supports a transition from stereo to surround sound, enabling listening to two-channel content in surround, the companies said.

Ensonido enhances the listening experience through stereo headphones. The technology is based on an acoustic model that simulates the natural transmission of multichannel sound from loudspeakers to the human ear.

Additional information about MP3 Surround is available at: http://www.iis.fraunhofer.de/amm/download/mp3surround/index.html.

More information about Ensonido is available at: http://www.iis.fraunhofer.de/amm/techinf/ensonido/index.html.

MP3 is a format for storing digital audio, using a type of audio compression that reduces the file size with little reduction in audio quality.

Research on compression of music files was conducted in the 1980s by a team of scientists working under Karlheinz Brandenburg at Fraunhofer IIS. Brandenburg's development, the MPEG-1 Layer 3 algorithm, was first shortened to MPEG Layer 3 and later to MP3.

Thomson will demonstrate the MP3 Surround enhancements at the Consumer Electronics Show (CES), which begins Thursday in Las Vegas.

Join the newsletter!

Or

Sign up to gain exclusive access to email subscriptions, event invitations, competitions, giveaways, and much more.

Membership is free, and your security and privacy remain protected. View our privacy policy before signing up.

Error: Please check your email address.
Keep up with the latest tech news, reviews and previews by subscribing to the Good Gear Guide newsletter.

John Blau

IDG News Service
Show Comments

Most Popular Reviews

Latest Articles

Resources

PCW Evaluation Team

Tom Pope

Dynabook Portégé X30L-G

Ultimately this laptop has achieved everything I would hope for in a laptop for work, while fitting that into a form factor and weight that is remarkable.

Tom Sellers

MSI P65

This smart laptop was enjoyable to use and great to work on – creating content was super simple.

Lolita Wang

MSI GT76

It really doesn’t get more “gaming laptop” than this.

Jack Jeffries

MSI GS75

As the Maserati or BMW of laptops, it would fit perfectly in the hands of a professional needing firepower under the hood, sophistication and class on the surface, and gaming prowess (sports mode if you will) in between.

Taylor Carr

MSI PS63

The MSI PS63 is an amazing laptop and I would definitely consider buying one in the future.

Christopher Low

Brother RJ-4230B

This small mobile printer is exactly what I need for invoicing and other jobs such as sending fellow tradesman details or step-by-step instructions that I can easily print off from my phone or the Web.

Featured Content

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?