HDMI (high definition multimedia interface) is a cable connection that sends both the HD audio and video signal between HD equipment. If your laptop computer has an HDMI input connection installed, it is possible to play the audio of an HD device directly through the laptop computer's speakers. Doing so doesn't require any additional equipment, except for an HDMI cable.
Plug the HDMI cable into the "Out" port on the device you want to send the audio signal from (such as an HD audio receiver or even a high definition television set).
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Attach the other end of the HDMI cable to the HDMI connection port on the laptop computer.
Double-click the audio icon in the lower right corner of the laptop. Make sure nothing is checked off under the "Mute" option.
Play the audio from the original source device and the HD audio will play through the laptop computer system.