I have an Apple Tv Box 4K 3GEN and an EPSON CO-FH01 projector, both of which have no audio output. I bought the HDMI Audio Extractor so that I can enjoy the sound through my speakers, but no picture appears. The Apple TV box is set to 30HZ. Does anyone know what could be the reason why I am not getting a picture?
It works directly from the TV box to the projector with the HDMI cable.
Many thanks in advance.

Question

I have an Apple Tv Box 4K 3GEN and an EPSON CO-FH01 projector, both of which have no audio output. I bought the HDMI Audio Extractor so that I can enjoy the sound through my speakers, but no picture appears. The Apple TV box is set to 30HZ. Does anyone know what could be the reason why I am not getting a picture? 
It works directly from the TV box to the projector with the HDMI cable. 
Many thanks in advance.

Answer

Maybe this extractor does not support 4K or only 30Hz. There is another adapter that explicitly supports 4K and 60Hz, Art. No. 8346268 -> 
[Delock HDMI Audio 5.1 Extractor, 4K, 60Hz (HDMI, 15.30 cm)](https://www.digitec.ch/de/s1/product/delock-hdmi-audio-51-extractor-4k-60hz-hdmi-1530-cm-data-video-adapter-8346268)

Answer

Oh dear, I used it on the Swisscom TV box, there was a picture, but not in 4K, so I returned it

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