Cellular Wideband Audio

What Does Cellular Wideband Audio Mean?

Cellular wideband audio is a type of audio technology that is used in telephonic communication on supported devices and carriers. This technology provides higher quality voice communication by extending the frequency range of audio signals transmitted over telephone lines. It was initially launched for wired telephone networks but now also supports wireless/mobile networks.


Cellular wideband audio is also the name given to a similar HD voice feature available on iPhone 5.

Cellular wideband audio is also known as HD voice and wideband audio.

Techopedia Explains Cellular Wideband Audio

Cellular wideband audio is considered to be a move toward higher definition audio. It extends the audio frequency of telephone line transmissions to a range of 50 Hz to 7 KHz and beyond. It aims to provide clearer sound quality, easy classification of closely related sounds and an overall better experience for both the talker and listener. The 3GPP has launched advanced multirate wideband (AWB) codec for implementing cellular wideband audio.


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Margaret Rouse
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Margaret is an award-winning technical writer and teacher known for her ability to explain complex technical subjects to a non-technical business audience. Over the past twenty years, her IT definitions have been published by Que in an encyclopedia of technology terms and cited in articles by the New York Times, Time Magazine, USA Today, ZDNet, PC Magazine, and Discovery Magazine. She joined Techopedia in 2011. Margaret's idea of a fun day is helping IT and business professionals learn to speak each other’s highly specialized languages.