I am working on a distributed HDMI sytem for a new home and would like to use zones from 12 channel, 6 zone amp for stereo sound in three of the video zones. I would like to use HDMI through a 4x4 HDMI matrix switch for the video feed but I want to break the audio out from the HDMI feed so it can be fed through a 8x8 audio matrix and into the 12 channel amp as an analog signal. Any suggestions?