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I am using a Nokia Wireless Headset HS_26W with a Nokia 2600 mobile phone. I can hear people I call perfectly, however, they all complain of an echo at their end Any solutions Thanks

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  • aisro1 Oct 23, 2008

    I don't know if this is the problem as I used the same wireless handset with another phone and there were no problems

    Aisro1


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Make sure there is no electronic device in and around. Since wirless connection is bound to be effected because for interference with other electromagnetic signal, you get the echo sound.

There are certain devices available in the market which will take care of the echo. Please click on this link to know more about the product. http://www.widebandsolutions.com/

Thanks.

Posted on Oct 23, 2008

  • Indrajit Roy
    Indrajit Roy Oct 23, 2008

    Please go through the reason for the echo in brief.



    Summary: Integrating voice-processing algorithms into headsets is a challenging task due to size and power constraints. As a result of the small size of these headsets, acoustic leakage between the closely located speaker and microphone is a common problem. To address this problem, an oversampled sub-band adaptive acoustic echo cancellation system is proposed and implemented on an ultra-low resource DSP system. The echo cancellation algorithm is integrated with two voice activity detectors and double-talk detection logic to provide a fully functional system. By using decimation, load balancing and other optimization techniques, the complete system consumes about 6 mW. Other signal-processing algorithms can be added with very little impact on power consumption and no impact on size. Tests on a Bluetooth headset show an echo return loss enhancement of about 15 dB for a typical headset signal level

  • Indrajit Roy
    Indrajit Roy Oct 23, 2008

    If this is the case then its a problem with your phone. You may have noticed that even when we are not using the Wireless headset we get a echo. The reason being is that the alignment is not correct. Get the Sound part of your mobile checked. You can contact Nokia Service centre in that case as we are sure that the Wirless headset is not a problem in your case.



    Thanks

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Hmm..that is a little odd..it may be coming from your voice hitting the wireless headset and also the mike on the phone at basically, but not precisely the same time..try it with the phone far enough away so that the mike on the unit can not pick up your voice..

Posted on Oct 23, 2008

  • A Womans Computer Man
    A Womans Computer Man Oct 23, 2008

    that would explain what is technically called shadowing of a voice signal

    and thank you for using fixya to solve this problem..


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