HDMI audio extractor used with a Video matrix

[azkid]

I have an 8x8 HDMI matrix setup to distribute my video sources around the house.  The matrix is a binary 120 which has actual HDMI out not ethernet/HDbase. I dont have any way to easily run new cable so for now 1080 has to do. I also have 2 ceiling speakers in each of the bedrooms powered by a C4 amp/matrix which is in the central rack next to the binary HDMi matrix.  I want to make the tv volume come from these ceiling speakers.  My understanding is I can use an HDMI audio extractor to send the audio to my audio matrix/amp to then play on the ceiling speakers.  My question is would I be better off putting the audio extractor on the HDMI inputs before the video matrix so each inputs sound can be sent to the room playing the tv or should I put the extractor on the video matrix outputs so each rooms volume goes to the ceiling speaker?   Does it matter?  Only thing I can think of is if I wanted to play the input volume IE the apple TV in another room in addition to the room the video matrix is sending the video it would be better to do the extractor on the input.   I doubt I'd use that but anything else I should consider?

[tekki70]

do you have cat run from the rack to the tv? if so you can do a dac back to the c4 matrix, this way anything playing from the tv will play through the c4 amp, if not then hdmi stripper for each source to the c4 matrix would be the way to go