Considerable lag on a Sonos Beam when going from PCM to Dolby Digital on a 2017 Samsung TV and an Apple TV as the source. I tried both HDMI and optical adaptor.
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Delay in One SL surrounds | Sonos Community
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Sonos Beam (Gen 2) Compact High-fiedelity Smart Sound Bar with Dolby Atmos | eBay
Ethics Whiplash As Sonos Tries Every Possible Wrong Way To Handle IoT Right | Hackaday
Sonos Arc 5.1 Home Theater Bundle (Black) Includes Sonos Arc Dolby Atmos® sound bar, Gen-3 Sub, and two Sonos One SLs at Crutchfield
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Fix: Sonos Playbase Sound Stuttering, Audio Delay or Cutting Out
Sonos Arc 5.1 Home Theater Bundle (Black) Includes Sonos Arc Dolby Atmos® sound bar, Gen-3 Sub, and two Sonos Ones at Crutchfield
Amazon.com: Sonos Beam - Smart TV Sound Bar with Amazon Alexa Built-in - Black : Electronics
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Sonos delays launch of 'Sub Mini' wireless subwoofer - 9to5Mac
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Best Sonos Settings for Vinyl: Disable Audio Delay