The BZBGEAR UHD 4K 18 Gb/s HDMI Signal Fixer and Audio Embedder & De-Embedder features two distinct operating modes. The first mode extracts audio embedded in the HDMI signal via the L/R outputs. The second mode enables removing embedded audio and embedding auxiliary audio via the unit's L/R inputs. It supports HDR, HDCP2.2, and EDID protocols for flexibility and pristine image quality.