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What is wideband audio (HD voice)? - Definition from ...

    https://www.techtarget.com/searchnetworking/definition/wideband-audio-HD-voice
    Wideband audio, also known as high definition (HD) voice, is an audio technology that uses a wider frequency spectrum than narrowband audio to achieve better voice quality during cellular and voice over IP ( VoIP) phone calls.

Definition of wideband audio - PCMAG

    https://www.pcmag.com/encyclopedia/term/wideband-audio
    Also branded as "HD Voice" by Polycom, the narrowband 300-3400 Hz frequency range of the traditional "toll quality" telephone call was broadened to …

CDT Wide Band Design Detailed

    https://cdtaudio.com/main_series/widebnd-design-lng.htm
    CDT wide-band drivers have an amazing 6-8 Octave range: covering 250Hz to 20,000Hz and beyond with no crossover of any kind in that bandwidth. This purity of reproduction enables your ear/brain mechanism to perceive a more lifelike image than any other audio system yet devised. You will literally hear the difference!

What is Ultra-Wideband (UWB)? Here's everything you …

    https://bleesk.com/uwb.html
    Ultra-wideband (also known as UWB, ultra-wide band and ultraband) is a short-range wireless communication protocol. It uses radio waves to enable devices to talk to each other. Sounds familiar? Yes, it is similar to Bluetooth but more precise, reliable and effective. Your iPhone’s New 6th Sense – U1 & UWB Explained Watch later Watch on

HD VoIP and HD Voice Codecs - OnSIP

    https://www.onsip.com/voip-resources/voip-fundamentals/hd-voip-and-hd-voice-codecs
    Wideband technology transmits audio beyond the narrowband limit of 3.4 kHz, all the way up to 7 kHz. This expanded range results in excellent sound and speech quality: clearer phone calls and sharper, crisper voices. The first standardized wideband codec, G.722, was …

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