Extract and convert the audio from your hdmi signal to 35mm audio in 21 stereo sound this hdmi audio extractor lets you separate stereo audio from your hdmi video signal and connect it to a 35mm audio device such as your stereo sound system or desktop speakers you can also extract the audio from the hdmi signal and integrate it into an optical toslink application using the included digital spdif adapter your latest consumer av equipment probably only offers an hdmi output this can m