Recreate the concert in the living room

Dec 17, 2012
Recreate the concert in the living room
© 2012 Alain Herzog

Hear music of concert hall quality at any place in the room from a stereo recording. The device created by EPFL spin-off Illusonic creates an "acoustic space."

Music of the highest quality sound that envelops the listener: the device developed by the start-up Illusonic creates exactly this. "" and "sonic"? These words best describe the result. , wherever they are in the room, have the impression of being in a concert hall. is ideal when one is situated exactly between the two speakers, and surround sound creates a . The device developed by Christof Faller and his company, a spin-off of the Audiovisual Communications Laboratory, offers an "enveloping" sound anywhere in the room. "Conventional systems can convert stereo surround signals, but with low quality. Plus, these systems do not offer much flexibility in the choice of speaker configurations and positions. The processor converts any content with unequaled quality to speakers, regardless of placement," explains the creator of the start-up at the Science Park in Ecublens.

The surround system reproduces the placement of unique sounds as they were planned in the recording. The goal of the "immersive audio" processor is to reproduce music and dialogue through a configuration of defined by the user, so that the contained in the recording is triggered not only in the central listening position, but anywhere in the room.

Breaking down the sound to better reconstruct it

The processor decomposes the recording according to the criteria of sound's natural . The audience in a concert or film hears the direct waves from the instrument or voice, but also those that are reflected off the walls of the room and the diffused sound. With this new device, the first waves are disseminated through the central speakers to give a precise location in space above the second and third waves coming through the other speakers, to create an enveloping surround sound. "The feeling is difficult to describe, since it's about emotion," notes the boss. A similar system developed by Illusonic already equips a dozen 3D cinemas in the USA and Asia.

Intended for the general public, the device connects a stereo and speakers. Two to sixteen of them can be connected and distributed in the room. With a few clicks the user specifies the number of speakers, and the machine does the rest. That is to say, it decomposes the sound to better distribute it.

With a new generation of algorithms fine-tuned especially during his doctorate at EPFL, and from which he pulled twenty patents, Christof Faller develops various technologies to improve the sound from a computer, a stereo hi-fi, a television, or a video camera. Other projects are underway, such as a microphone capable of recording audio as surround .

Explore further: The ethics of driverless cars

More information: Film Illusonic: www.illusonic.com/immersive-audio-processor/movie/

add to favorites email to friend print save as pdf

Related Stories

Surround sound on the move

Feb 23, 2007

Surround sound gives you the feeling of being right in the middle of the action. Until now, it took massive data packets to achieve the ultimate sound experience. But at CeBIT, which will take place from March 15 to 21, Fraunhofer ...

Nothing but first-class seats at the movies

Jul 05, 2006

Invisible, but audible, is the latest attraction at the Bavaria Film Studios near Munich. The "4D cinema experience" is the second movie theater in Germany to have departed from conventional multi-channel sound. ...

Ultra-flat loudspeakers with powerful sound reproduction

Sep 03, 2009

(PhysOrg.com) -- Bigger speakers, bigger sound - this is the music lover’s creed. Flat panel loudspeakers offer an alternative to those who would rather not or cannot clutter up their homes with speakers. ...

Philips announces new Bluetooth audio and voice solution

May 24, 2005

Royal Philips Electronics makes the world of the Connected Consumer even more enjoyable with the introduction of a new, simple to use Bluetooth 1.2 Stereo headset reference design. This Bluetooth stereo solution provides ...

Recommended for you

Google to help boost Greece's tourism industry

5 hours ago

Internet giant Google will offer management courses to 3,000 tourism businesses on the island of Crete as part of an initiative to promote the sector in Greece, industry union Sete said on Thursday.

Enabling a new future for cloud computing

6 hours ago

The National Science Foundation (NSF) today announced two $10 million projects to create cloud computing testbeds—to be called "Chameleon" and "CloudLab"—that will enable the academic research community ...

Hitchhiking robot reaches journey's end in Canada

9 hours ago

A chatty robot with an LED-lit smiley face sent hitchhiking across Canada this summer as part of a social experiment reached its final destination Thursday after several thousand kilometers on the road.

Microsoft to unveil new Windows software

10 hours ago

A news report out Thursday indicated that Microsoft is poised to give the world a glimpse at a new-generation computer operating system that will succeed Windows 8.

Music site SoundCloud to start paying artists

12 hours ago

SoundCloud said Thursday that it will start paying artists and record companies whose music is played on the popular streaming site, a move that will bring it in line with competitors such as YouTube and Spotify.

User comments : 0