World’s first CD-quality mobile phone calls developed

By Andrew Nusca | Feb 3, 2010 |

Finally, someone has invented an upgrade to the phone call.

A German audio company has developed what it says is the world’s first CD-quality mobile phone calls.

At the Mobile World Congress show in Barcelona, Erlangen, Germany-based Fraunhofer IIS demonstrated voice calls in stereo CD quality over a 4G — that’s for “fourth-generation” cellular — network.

The company says conversations now sound as clear and natural as if talking to someone in the same room. (I think I speak for all of us when I say it’s about time. Can you hear me now?)

Engineers from the Fraunhofer Institute for Integrated Circuits call the technology the Fraunhofer Audio Communication Engine, and demonstrated it using an LTE (that’s “Long-term evolution”) 4G network, the kind that Verizon Wireless is building in the United States.

The engine uses a specially-designed MPEG audio communications codec called “AAC Enhanced Low Delay” for CD quality with “very low” coding delays and bit rates.

Multi-channel echo control software removes echo feedback from a room, and a “specially matched IP streaming stack” and error concealment tools allow for higher-quality audio when the cellular network is on the fritz.

The advancement also boosts the sound of music heard over the call, making the wait music experience a little less….well, gravelly-sounding.

That also means conference calls at the office won’t be such an aurally murky experience, and phone calls made in noisy environments will be easier to understand.

Here’s a rather amusing video from the company:

Fraunhofer is credited with inventing the MP3 audio file format and co-developing the AAC audio format.

 
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  •  
    1

    josephmartins

    02/04/10 | Report as spam

    It's a solution looking for a problem

    Frankly, most people are unable to tell "CD-quality". That is to say, they may be able to tell that something sounds better, but how much better depends upon the individual.

    Musicians go out of their way to perfect the quality of their recordings only to have most fans play the songs back on devices (and through earpieces) and at bitrates that negate their efforts. And, fans are fine with that because at the end of the day it's about the music. The same goes for public venues where playback quality is horrible...yet the dance floors, clubs and concerts are packed to capacity every night.

    As long as service isn't spotty (by far still the biggest issue in the States) and the voice quality is "good enough" (which it is today in all but the noisiest environments), callers could care less whether the sound is "CD quality".

    Having written that, I can see the value on the transmission side to suppress environmental noise, but on the receiving end it won't make much difference.

  •  
    2

    Fletchguy

    02/04/10 | Report as spam

    Hmmm I am doubting this

    Well in order to be cd quality you have to be able to assume you can prevent drop calls, dead zones and any other elctrical interference other wise what you are stating is false and would get a company sued as all those factors would prevent cd quality phone calls so I think what they need to say is they have made a new clearer call quality for cellul;ar use as cd quality I dont think they can do... Oh and as a record label owner we do a lot of stuff to make music real not really cd quality as if you know about music you know the sound on a cd is actually not what you have created. The closets thing for a true audiphile in actual sound recreation is the good old vinyl cut record. Digital recording removes bytes of actual real sound making what you hear seem cleaner by fact or removal of actual audio soo in the field of us who like tru real life sound representation vinyl is above par with cd being for the masses of those who know no better

  •  
    3

    tozrob@...

    02/05/10 | Report as spam

    RE: World's first CD-quality mobile phone calls developed

    I think thats awesome! The only problem is that we are at the mercy of the moranic cell phone service providers that will limit bandwith degrading the quality of the audio.

  •  
    4

    sambackster

    02/05/10 | Report as spam

    RE: World's first CD-quality mobile phone calls developed

    I think it is a very invention if the sound quality improve then its very good for all the cell phone users.
    Cell Phone Case

  •  
    5

    ddferrari

    02/08/10 | Report as spam

    C'mon, "Fletchguy"...

    Man, you "vinyl is better than digital" guys will use any forum to argue your side, no matter how off-topic.

    As less than one percent of the population own a stereo system actually good enough reveal the miniscule difference in quality, it's a moot point anyway (and I don't recall hearing hissing, clicking and popping sounds during live performances). Until vinyl can compete with cds in terms of dynamic range, signal to noise ratio, and durability, I'll stick with my discs, thankyou.

    Oh, and yay to better sounding cell phones!

  •  
    6

    sjm@...

    02/08/10 | Report as spam

    RE: World's first CD-quality mobile phone calls developed

    Wether CD quality voice calls will be achieved or not, current cell calls are substandard when compared to typical land lines, so there definitely is room for improvement. I don't know how so many people have adapted to get accustomed to low-quality cell conversations.

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Larry Dignan is Editor in Chief of ZDNet and SmartPlanet as well as Editorial Director of ZDNet's sister site TechRepublic. He was most recently Executive Editor of News and Blogs at ZDNet. Prior to that he was executive news editor at eWeek and news editor at Baseline. He also served as the East Coast news editor and finance editor at CNET News.com. Larry has covered the technology and financial services industry since 1995, publishing articles in WallStreetWeek.com, Inter@ctive Week, The New York Times, and Financial Planning magazine. He's a graduate of the Columbia School of Journalism and the University of Delaware.

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Andrew J. Nusca is an associate editor for ZDNet and SmartPlanet. As a journalist based in New York City, he has written for Popular Mechanics and Men's Vogue and his byline has appeared in New York magazine, The Huffington Post, New York Daily News, Editor & Publisher, New York Press and many others. He also writes The Editorialiste, a media criticism blog.

He is a New York University graduate and former news editor and columnist of the Washington Square News. He is a graduate of the Columbia University Graduate School of Journalism. He has been named "Howard Kurtz, Jr." by film critic John Lichman despite having no relation to him. A native of Philadelphia, he lives in New York with his fiancée and his cat, Spats.

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