- high-definition multimedia interface (hdmi) is used to digitally transmit high-definition video and audio signals via a single cable.
 - the r&s®upp-b4 option provides the r&s®upp audio analyzer with hdmi functionality in version 1.4b.
 - hdmi features four physical data channels over which a series of different signals are transmitted.
 
key facts
- high-definition multimedia interface (hdmi) is used to digitally transmit high-definition video and audio signals via a single cable.
 - the r&s®upp-b4 option provides the r&s®upp audio analyzer with hdmi functionality in version 1.4b.