I have a Samsung Serif with audio being output via HDMI eARC to a mic mixer. The mixer can take HDMI input and can output HDMI or optical. The SONOS Ray only takes optical input so my current attempt at a karaoke setup is Serif → Mic Mixer via HDMI eARC → SONOS Ray via optical output. This isn’t working and I’m not sure why. This setup worked perfectly with my $70 Onn soundbar.
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Don’t even attempt to use Sonos for karaoke, DJ / mixing, live music / PA.
There is a noticeable audio delay that’s required to make multi-room audio sync correctly.
Important to note, however, that there is a difference between HDMI and HDMI-ARC.
My Sonos system works with mic mixer with no delay in audio. I use the karaoke in youtube. This is how my mic mixer is connected to the tv and sonos play bar/arc/arc ultra. TV hdmi arc is connected to the hdmi arc out of mixer and audio optical out of mixer is connected to optical input of playbar, if you use sonos arc or ultra you will need the hdmi arc to optical adaptor. This set up is working properly with any delay in voice audio.
The latency is shorter (about 30ms) for soundbars. Many listeners can accept this as “zero”. Line-In latency is 75ms.
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