The HDMI audio extractor supports separate high-quality video signal and audio signal from the ultra-high definition signal source. The stripped audio signal is output to the amplifier via SPDIF, COAXIAL or 3.5mm R/L audio port. Support ARC (audio return channel) function, strips the audio signal from the HDMI ARC of the TV, then transmits the audio signal to an amplifier by SPDIF or COAXIAL audio port. Support to convert HDCP1.4 to HDCP2.2, HDCP2.2 to HDCP1.4,support HDMI resolution up to 4Kx2K@60Hz. This product is perfect for AV transmission in applications of the conference system, multimedia education system, home entertainment etc.