3.5mm audio out to ARC1 in for Sonos Beam

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I am trying to solve an issue for a friend. Friend purchased Optoma UHD50 projector and installed it in his basement that has drywall walls and ceilings. Currently uses roku stick for HDMI input and now he wants to use a Sonos Beam. The projector has a 3.5mm audio out. I've found a 3.5mm audio transmitter/receiver kit that can deliver the 3.5mm audio out to the Beam Sonos but I also need to convert the 3.5mm audio signal to an ARC1 HDMI signal to input into the Sonos Beam. Does anyone know if this is possible or if there is a converter out that accepts a 3.5mm audio input and outputs HDMI ARC1? Thank you in advance!

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