We have developed a high-quality HDMI module that can be optionally inserted into various devices. It has two inputs for extracting stereo signals from the HDMI data stream and can process both PCM and DSD formats. HDMI is the only way to transmit DSD from an external device such as a Blu-ray player or SACD player. The output is used to pass video signals (up to 4K) to a TV set. On TV sets with ARC function the sound can be played back through our device.