Press Esc to close
Wednesday 27 July 2016
News updated at 6:54 PM IST
Weather
Max: 29.1°C
Min : 20.1°C
In Bengaluru
Sunny day
Breaking News

Now, giant ball speakers for 3D surround sound

London, Dec 10, 2012, PTI:

Music all around

Researchers are developing a new 3D super-surround-sound system by experimenting with a giant sphere that has 40 loudspeakers on its surface.

Commercial surround sound systems pan audio back and forth between speakers, but physically reconstructing a sound field could produce an experience much more similar to what you hear in the real world.

By knowing how different sound fields interfere within the space, researchers can choose the position of a virtual source and sculpt the resulting soundscape by controlling the signal sent to each speaker, the New Scientist reported. “This type of system can be considered to be analogous to a video hologram. If we can reproduce all the sound that goes through the surface of the sphere we can accurately reproduce what’s inside,” says Fazi.

The team recently synthesised a concert inside the sphere. Different instruments
were first recorded on separate tracks, like in a studio recording, then virtually repositioned in the space at different elevations, angles and distances from the centre.

During a demo, people listened to the virtual concert as well as to the musicians playing live and could hardly tell the difference.

“We achieved a high degree of realism,” says Fazi.

Now the challenge is to scale the system down so it can be used in cinemas, at home and in small devices.

Devices like cellphones are too small to accommodate many speakers, so the researchers are looking at how perceptual tricks could reduce complexity while retaining the same sound quality.


Go to Top

Photo Gallery
Army personnel pay tribute to jawans who died in Kargil War on Kargil Vijay Diwas in Kozhikode on ..

Army personnel pay tribute to jawans who died in Kargil War on Kargil Vijay Diwas in Kozhikode on ..

Specially abled kids from Om Creations Trust (NGO) make handcrafted rakhis as part of a campaign ...

Specially abled kids from Om Creations Trust (NGO) make handcrafted rakhis as part of a campaign ...

Punjab Police and BSF Jawans patrol after they captured suspected terrorists in Jalandhar's Khurla..

Punjab Police and BSF Jawans patrol after they captured suspected terrorists in Jalandhar's Khurla..

A couple carry their mother Runuka Devi on a palanquin to Gola Gokarannath from Kachla Ganga Ghaat..

A couple carry their mother Runuka Devi on a palanquin to Gola Gokarannath from Kachla Ganga Ghaat..

Police fire tear gas shells to disperse the rally, taken out from downtown city, on way to Lal ...

Police fire tear gas shells to disperse the rally, taken out from downtown city, on way to Lal ...

Members of National Human Rights and crime control organisation paying tributes to the soldiers ...

Members of National Human Rights and crime control organisation paying tributes to the soldiers ...

Policemen stands guard at Budshah Chowk after the 17-day old curfew was lifted in Srinagar on ...

Policemen stands guard at Budshah Chowk after the 17-day old curfew was lifted in Srinagar on ...

Vendors sell fruit at M A Road after curfew was lifted after 17-day in Srinagar on Tuesday...

Vendors sell fruit at M A Road after curfew was lifted after 17-day in Srinagar on Tuesday...

Legendary Santoor player Pandit Shivkumar Sharma being felicitated during an event...

Legendary Santoor player Pandit Shivkumar Sharma being felicitated during an event...

Members of the Indian archery team, the first to reach Brazil for the upcoming Olympics...

Members of the Indian archery team, the first to reach Brazil for the upcoming Olympics...

Copyright 2014, The Printers (Mysore) Private Ltd., 75, M.G Road, Post Box 5331, Bengaluru - 560001
Tel: +91 (80) 25880000 Fax No. +91 (80) 25880523