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RaleighJim
Trending Lyricist I
May 1, 2017
Question

Connect (Not Connect Amp) with local speakers out of sync with rest of Sonus network..

  • May 1, 2017
  • 26 replies
  • 3238 views
I have ready various posts about compressed/uncompressed usage of the Sonus and I think I have a different problem. The issue that I have is that I have a Connect (not Connect Amp) attached to my Sonus system (through LAN cable into Wi-Fi router) to feed an external music source into Sonus (happens to be Airplay) and the sound is out of sync as the local speakers connected to the Connect fire first and then the rest of the Sonus speakers are delayed a slight bit resulting in an out of sync sound system.

I have tried compressed/uncompressed and the issue that I am having is not the normal sync issue that most post about. What I would like is some way to delay the local audio out in the Connect itself so that it can sync up with the inherent delay in the Sonus network. My sense is that the line in on the Connect is immediately feeding into the amplifier on the output audio ports -- much faster path than the rest of the meshed network. I am using Digital Coax output on the connect. The ideal would be some sort of delay 'slider' in the App for the Connect that would allow for the internal audio to be adjusted (delayed) out in time to provide closer sync to the rest of the Sonus network.

Any clues/suggestions?

I have thought to look for some sort of externally mounted 'delay' device, but this starts to get a bit convoluted/Rub Goldberg-ish in my mind...
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    26 replies

    Kumar
    May 1, 2017
    My sense is that the line in on the Connect is immediately feeding into the amplifier on the output audio ports -- much faster path than the rest of the meshed network. I am using Digital Coax output on the connect.
    Problem definition comes first, and I am not sure that has been fully done. Any output from Connect, regardless of what source it comes from, will be in sync with other Sonos units; indeed, that is why there is a delay when the source feeding the Connect is ALSO feeding another amp and speakers, with the latter then firing first before any Sonos unit, including Connect, does.
    Perhaps you can tell us how and to what every jack, input and output, on the Connect is wired to?
    ratty
    ratty
    May 1, 2017
    the inherent delay in the Sonus network.
    There's no such thing. Audio data is buffered at each player, then clocked out -- in sync -- under the control of an accurate shared network timebase.

    I also don't understand the precise configuration which is evidently causing the problem.

    BTW there's no 'direct' mode for Line-In to the CONNECT's outputs. It's subject to the same delay as any other player.
    John B
    May 1, 2017
    I am struggling as much as the other respondents to make sense of what you are doing, I'm afraid, but I'm sure we would all like to help.

    As a guess...
    1. You have a music source playing through line-in to a Connect, doesn't really matter what it is.
    2. The Connect feeds third-party powered speakers (or amp + passive speakers, but you only mention speakers)
    3. You have grouped the Connect with Sonos Play speakers on your system

    .... yet the speakers grouped with the Connect are playing behind the Connect??? Is that the set up? If not please explain how things actually are.

    What happens if you play a non-line-in source through the Connect, with the same grouping?
    ratty
    ratty
    May 1, 2017
    It sounds as though the OP thinks he's playing the CONNECT's Line-Out but is in fact playing direct from the external source. This would put the audio ahead of any Sonos output.
    John B
    May 1, 2017
    It sounds as though the OP thinks he's playing the CONNECT's Line-Out but is in fact playing direct from the external source. This would put the audio ahead of any Sonos output.Indeed. I don't really think he has got everything grouped.... in fact I can't see that he possibly can have everything playing through a group, but hoping to tease that out.
    RaleighJimAuthor
    Trending Lyricist I
    May 1, 2017
    John B has it correctly understood:

    I do group together (Playbar + Play:3 + Play:1) to the Connect. The output of the Connect is in fact to an older Vizio soundbar (amp + speakers) through COAX SP-DIF digital. This is where the Connect audio is early relative to the rest of the devices.

    I will have to try the inverse : Connect grouped as part of a 'normal' source (through Sonos App) -- in this case I would expect the audio to be in sync, but I will have to verify.

    I'll see if I can upload a picture of my setup to clarify
    RaleighJimAuthor
    Trending Lyricist I
    May 1, 2017
    Topology diagram
    John B
    May 1, 2017
    Hi. You say a normal source through the Sonos app. But you are playing the line in source through the Sonos app aren't you? I am not clear whether you don't regard line in as a normal source or that you are not using the Sonos app to play it (somehow)
    ratty
    ratty
    May 1, 2017
    Are you sure the audio from the sound bar is not behind the rest of the Sonos players? This is the usual situation, on account of DSP downstream of the CONNECT.

    As already stated, Sonos' audio is in sync at its own outputs. The one exception is when players are grouped with a PLAYBAR/PLAYBASE playing from its 'TV' input.
    John B
    May 1, 2017
    Could you please clarify exactly what connections and devices are involved in getting Airplay to play to the Connect?
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