Issue using grouped loudspeakers kind of volume drop on one loudspeaker

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  • Official comment

    Hi Stefan

    If you setup a system in a bigger open area, for example kitchen one, dining one and living room one player. They all should be independent but when grouped you get these moving soundstages what sounds strange.

    You are making some incorrect assumptions here. They will always be independent. Yes, they are playing synchronised but based on their own characteristics and volume level. This is as designed, as we cannot guess what your individual levels will be required for each room. Open the Player Drawer and adjust their volumes independently. 

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    Stefan Mehre

    O.K. so with LAN it seems to be the same or pretty similar.

    It doesn‘t sound like an echo and so I would think it‘s about latency differences.

     

    It sounds more like an volume drop on one loudspeaker, which changes after some time again. If I move my ears between the two loudspeakers one seems more silent.

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    Stefan Mehre

    I believe I was not clear enough about my issue, so I try again:

    So following base audiosettings on both Flex2i:

    soundsettings: off

    Replay Gain: off

    output mode: mono

    volume limit: -90 dB to -20 dB

     

    So same hardware, same firmware and same audiosettings.

     

    1. Starting playback FLAC from a Vault2i on one Flex2i and grouping the second one to that Flex2i.

    2. setting up the volume on both speakers individually but that way the volume sounds identical

    3. sitting in the middle or better stereo triangle of these two speakers and listening

     

    Now I recognize changes in the soundstage after some time or if I pause for a while and playback than. Can't really say what is happing it seems one speaker drops in volume or the other increases, don't know but one speaker gets louder than the other. After some time or pause for a while and start playback the volume is the same again etc.

     

    I hope this makes it more clear....

     

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    Stefan Mehre

    Are there any recommanditations about the Multicast settings of a network? I did a reconfiguration of my network LAN and WLAN and switched to IGMPv3 and MLDv2 and restarted all my players and loudspeakers. I have to test more, but at the moment that seems to have changed this behaviour... Will report back...

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    Stefan Mehre

    Hmm, it happens again when playing spotify connect on a group. Have to check FLAC from Vault2i again, but that seemd to work after the network changes. But with Spotify Connect the issue is there at the moment...

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  • Hi Stefan

    Check all the players in the group and ensure all the wireless players have good WiFi signal; https://support1.bluesound.com/hc/en-us/articles/201940663

     

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    Stefan Mehre

    All show excellent with -42 to -44dB for WiFi.

    Btw. I had this issue with LAN too...

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    Stefan Mehre

    So connected LAN to my two Flex2i and grouped them with a Powernode2i on LAN. Same issue happening, but tested different sources and:


    a. from Vault2i seems fine at the moment 

    b. from Spotify issue happens

    c. from Radio Paradise issue happens

    d. Amazon Music seems fine

    e. TuneIn issue happens

    f. AirPlay 2 from iPad issue happened. I had another, volume dropped suddenly and got higher after some time, but on all devices the same way.

     

    Maybe sources from internet and if the playqueue is not used could make a difference? Tryed to figure out if quality of musicfiles makes a difference, but was not able to make this clear.

     

    The issue sounds a littlebit like when you change the +/- of speaker connections. The music moves from the middle to the outside. Sometimes it seems like a volume drop on min. one speaker.

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    William Darrell

    I have a similar if not identical issue, when I have my two flex 2i stereo paired the sound sometimes moves from center to one side and back again (when its not supposed too/at random). I cant seem to find any reason as to why as this happens both via wifi and bluetooth connection. This happens when listening to spotify as well as watching movies/youtube videos, I have yet to try other material, but I doubt thats the problem.

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    Stefan Mehre

    Sounds like my issue, it‘s a littlebit hard to describe but it sounds strange and needs to be solved. I tested again with two Powernode2i in my dining and livingroom because it‘s open area. Same here and both are connected by LAN. Playing from Spotify and pressing pause and again play, maybe more than one time shows that issue too. But it happens while playing after some time again and again, so not only when it‘s controlled.

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    Tony W. - Product Support Manager

    Hi William

    What you are hearing are network packets being lost on the secondary player of the group. Check out www.bluesound.com/network101 for tips. You may have to break the fixed group to properly troubleshoot this.

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    William Darrell

    If I understand you correctly you´re telling me it´s because of a bad connection between my secondary player and my router and not a bad connection between my two players right?

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    Stefan Mehre

    Tony, do you believe the same for my issue? and what can I do to avoid this?

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    Tony W. - Product Support Manager

    At William - Correct

    At Stefan - follow the advice I provided... 

    If problems persists, Help, Send Support Request in the App

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    Stefan Mehre

    I sent the logfiles of two Flex2i while playing in a group and after the issue happend two/three times. This time they were connected by Wifi but like mentiond this happens also if they are connected by LAN. And this happens not only with these two Flex2i, it happens also if I try it with two PowerNode2i connected by LAN.

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    GARNEAU Alain

    Hi, I have a similar problem with two Pulse Flex2i coupled in "Stereo Pair".

    The stereo image moves from one Pulse to the center at the beginning of each new piece of music.

    The problem is independent of the source (streaming internet, NAS, USB, ...), file format (FLAC, ALAC, WAV), network (WIFI, Ethernet).

    I tested with an identical signal on the left and right channels and it seems that the phase between the two channels varies during the playback of a music file.

    The same files played on my Node2, linked to an analog amplifier, are corrects, the stereo image is stable in the center during all playback.

    I have already used the support but it just reload the firmware without solving the problem.

    It's time for Bluesound to look at the problem.

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    Tony W. - Product Support Manager

    Hi Alain

    It's time for Bluesound to look at the problem. - way ahead of you

    The issue is networking related - please disable AV/Mode on your FLEXes to add a slight delay to allow for network throughput. Check it out; https://support.bluos.net/hc/en-us/articles/360021056034

     

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    GARNEAU Alain

    Hi Tony,

    Thank you for your answer but I don't use the Optical Input neither Analog Input, so the AV/Mode is not applicable.

    Nevertheless,I disabled AV/Mode on the two Pulse Flex and as expected, the problem is still there.

    The default is really strange because I perceive it with the speakers but not with the headphones (left Pulse headphone output to the left channel of the headphones and right Pulse headphone output to the right channel of the headphones).

    Can the explanation be a fault of one of the digital amplifiers of one of the Pulse Flex ?

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    Tony W. - Product Support Manager

    Hi Alain

    What you are describing is not hardware related. Please select Help, Send Support Request in the App so our Support Crew can take a closer look at your log file which is sent automatically

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