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Definition of "VAD" |
velocity azimuth display, / Voice Activation Detection is a software application that allows a data network carrying voice traffic over the Internet to detect the absence of audio and conserve bandwidth by preventing the transmission of "silent packets" over the network. / The frequency band, or range, specified for voice communications in the public switched telephone network.The total bandwidth of a voice grade channel is nominally 4 kHz. So, a single-channel voice grade circuit, supports a frequency band of 0. |
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