Another projector question! But I can’t find the answer anywhere.
I’m connecting a laptop (Dell Latitude E7450) to a projector (Epson PJ H849B) and Sonos home theatre system (Beam + two Play:1s).
Problem: I have sound, but NOT 5.1 surround sound
I have HDMI from laptop to an audio extractor (Neoteck HDMI Audio Extractor 4K DAC HDMI Audio Extractor with Volume Adjustment HDMI to Optical Spdif Toslink + R/L(RCA) + 3.5mm Stereo Audio Converter).
Then HDMI out from audio extractor to projector and optical out from extractor to Beam.
I have the extractor switched to 5.1 but when I look in the Sonos ‘about my system’ information I can see that the Beam is only receiving Stereo.
When I go to Sound / Playback on the laptop the audio device is the Epson PJ (i.e. the projector). When I go into configuration I can see the option to configure the Epson as 5.1 surround sound. But when I choose this option and test using the graphic on the laptop only the FL and FR speakers actually sound, i.e. it is not sending 5.1 to the Beam, only stereo. I don’t know why the laptop thinks that audio is going to the projector - maybe that is what the HDMI connection recognises as it does not recognise the (extracted) optical out signal to the Beam?
I wonder whether I need a HDMI matrix rather than an audio extractor, but can’t see why as the audio extractor purports to work for this exact setup (see here).
I know it is nothing to do with my soundcard as HDMI takes sound from the graphics card. I have updated my graphics drivers.
Also: I have tried the setup with my flatmate’s (brand new) Lenovo laptop and have exactly the same problem which makes me suspect it is not the laptop which is the issue.
Any suggestions most gratefully received!