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Ebud9
Contributor I
Jul 31, 2023 8:31 AM UTC
Answered

Sonos Beam won’t output 1.0 monaural sound

I have a Sonos Beam (gen 1), and recently noticed that it can’t seem to handle monaural sound. I have a number of blu-rays in mono (Dolby Digital or DTS 1.0), but the Beam won’t output the sound. If I unplug the HDMI cable then plug it back in, it does play the sound out of the left channel for a second, but then loses it again. Anybody else found this issue, or know of a solution?

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ratty
rattyAnswer
Jul 31, 2023 8:36 AM UTC

What happens if you tell the BD player to downmix to PCM stereo? 

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4 replies

ratty
rattyAnswer
Jul 31, 2023 8:36 AM UTC

What happens if you tell the BD player to downmix to PCM stereo? 

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Ebud9Author
Contributor I
Jul 31, 2023 12:36 PM UTC

Ah yes, of course - that worked, thanks! Rather annoyingly, it still outputs the mono audio from the left side only, rather than from the centre, or from L+R together; however, at least I can hear it now! Thanks ratty, much appreciated!

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ratty
ratty
Jul 31, 2023 12:43 PM UTC

Are you sure the mono track is actually recorded on both the L and R channels? If the TV’s own audio is re-enabled does sound come from both sides? Or from both channels of headphones connected to the TV, whether by wire or Bluetooth? Assuming the BD player has stereo RCA outputs you could also do a few tests there.

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    Ebud9Author
    Contributor I
    Jul 31, 2023 4:07 PM UTC

    Good shout, I’ll do some further tests.

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