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LUMIN - Audiophile Network Music Player

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I had multiple failure reports of this brand of switch from our users and Roon forum.  I also have a failing switch of this brand under my desk that requires a power cycle every few months.


Peter Lie

LUMIN Firmware Lead

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If you put the Lumin in place of a working device on the switch in the Audio Room then the Router will still be looking for the device you took out.

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When it happened to me with the Teac NT-505 (also runs Lumin software)  I had to turn the Teac off, go into the router settings and tell it to forget the Teac as a device then re-boot everything in order.  It then gave the Teac a new IP address and everything has worked fine since then.  Why that worked I don't know but I tried everything up that point including hooking the Lumin straight to the router but nothing worked until I removed it and let the network find it again from scratch.  

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6 hours ago, JMD54 said:

I had to turn the Teac off, go into the router settings and tell it to forget the Teac as a device then re-boot everything in order.

 

What model of router is that?  I've not seen this forget function in consumer routers before.


Peter Lie

LUMIN Firmware Lead

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Isn't the IP address "tied" to the unit itself? In other words, you can move a component to a different location and the Router will usually retain the same IP address. Yes, the Router will hold the IP address for the Teac (but not indefinitely) but should assign a new IP address for any new component that it detects on the network. The Router doesn't know physically where the component is.

8 hours ago, JMD54 said:

If you put the Lumin in place of a working device on the switch in the Audio Room then the Router will still be looking for the device you took out.

 


(MPD/Rigelian), Sonore ultraRendu, Sonore ultraDigital, Ayre QX-5 Twenty, Ayre KX-5 Twenty, Ayre VX-5 Twenty, Revel Ultima Studio2, Iconoclast speaker cables & interconnects, RealTraps acoustic treatments

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If you have assigned a static IP address (via the online admin for the router) - then the router will recognize the unit (Teac)via its unique MAC-address, and keep assigning it the same ip, even though you plug it into different ports on the router.

 

But when you introduce a switch into the mix, the switch looks for shortest/fastest paths on boot up- and now “remembers the path” for any device attached to it until Reboot, for Each Port - so if you used to have a Teac on port 1, it expects to find the Teac on that port, and will ignore the LUMIN newly attached to the same port!

To remedy: Delete Static IP for old device if any, restart router And Switch and plug LUMIN in, once up and running you can assign a static IP for the LUMIN if you do desire

 Best regards from Denmark

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An audio manufacturer recently stated their preference for StarTech SFP module in their (non-Lumin) setup based on subjective SQ comparison.

 

So I've tested Lumin X1 compatibility (which works normally as expected) with a pair of StarTech 1000BASE-LX 1310nm SFP modules:

https://www.amazon.com/StarTech-com-Cisco-GLC-LH-SM-Compatible-Module/dp/B00BUBW2SQ

 

along with this LC-LC duplex single mode Corning fiber:
https://www.fs.com/products/68296.html

 

to this Cisco SG112-24-NA SFP switch:

https://www.amazon.com/SYSTEMS-24-Port-Gigabit-Switch-SG11224NA/dp/B00VPT8XSQ


Peter Lie

LUMIN Firmware Lead

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If you use the Lumin app (or other apps) to mute any model of Lumin player, its front panel display will show MUTE.  This helps the occasion when one is wondering why there is no sound output.


Peter Lie

LUMIN Firmware Lead

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Thanks I see it now. Its on the bottom where the file format is shown. I was expecting something larger, like the Lumin Airplay display.


 

"The function of music is to release us from the tyranny of conscious thought", Sir Thomas Beecham. 

 

 

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I upgraded to new firmware and my U1 now has major lag. When I choose something to play it takes about a minute to start playing. Then it will just randomly stop playing music at times and take anywhere from 1-3 minutes to start playing again. Anyone have similar issues? Suggestions? Is there a way to revert to previous version of firmware?

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5 hours ago, loudog said:

I upgraded to new firmware and my U1 now has major lag. When I choose something to play it takes about a minute to start playing. Then it will just randomly stop playing music at times and take anywhere from 1-3 minutes to start playing again. Anyone have similar issues? Suggestions? Is there a way to revert to previous version of firmware?

 

Which DAC are you using?  And what connection method - USB?

 

Please verify that the U1 is running firmware 11.5b.

 

Please power down both the U1 and your DAC.  Power up the DAC, then power up the U1.

 

If this still does not solve the problem, please use Lumin app to factory reset the Lumin U1, inside the About function.


Peter Lie

LUMIN Firmware Lead

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Using chord Hugo TT 

lumin firmware updated yesterday but don’t know where to look to make sure it’s 11.5b

 

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30 minutes ago, loudog said:

App seems to not be connecting with the U1 consistently 

 

Please power down the U1, mobile device, Chord, NAS, and all network devices.  Power cycle the WiFi router and all network switches.  Wait for 5 minutes, then power up the NAS, Chord, mobile device, and lastly the U1.


Peter Lie

LUMIN Firmware Lead

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The current design of Lumin (when not using Roon) is to apply a second-level volume from the iOS AirPlay device source, so that iOS app (e.g. YouTube) volume can be reduced by iPad volume buttons (from the first-level volume in Lumin app or Roon that is treated as the maximum volume). This means that when using AirPlay actual volume will never be greater than the volume set in Lumin app.

I now have an alternative implementation of AirPlay volume (no longer as second-level) such that setting AirPlay to maximum volume implies Lumin will be at maximum volume, for Lumin X1 / T2 / U1 / U1 MINI. If there is anyone who want to try this beta firmware, please let me know.


Peter Lie

LUMIN Firmware Lead

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Hello,

 

I am currently downsizing to a simple system consisting of only a Lumin U1 Mini and active speakers. Since the speakers will digitize any analog signal sent to them I will not send the output from the U1 Mini to my current DAC (Benchmark DAC2 HGC) for conversion to an analog signal.  Instead I  will connect the speakers directly to the AES/EBU output of the U1 Mini and use the built in digital volume control. 

 

The only audio input of the speakers (Dutch & Dutch 8C) is the AES/EBU input (which can also take analog XLR). This limitation creates a problem when I want to feed the speakers audio from Netflix etc. that I stream from a Macbook Pro to out TV using HDMI. I need to get the audio into the U1 Mini since this device occupy the only audio connection to the speakers. The only way, as I understand, is to Airplay the audio from my computer to the U1 Mini. I am still waiting for delivery of the new speakers, but I have tested using Airplay 2 with other speakers and the sound is delayed 2 seconds compared to the video signal to my TV due to the inbuild buffer in Airplay 2.

 

Does anyone know how to bypass the buffer in Airplay 2, or any other way of getting the audio signal into the U1 Mini without sync problems?

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On 8/17/2019 at 12:15 PM, wklie said:

Which DAC are you using?  And what connection method - USB?

 

Please verify that the U1 is running firmware 11.5b.

 

Please power down both the U1 and your DAC.  Power up the DAC, then power up the U1.

 

If this still does not solve the problem, please use Lumin app to factory reset the Lumin U1, inside the About function.

 

Experiencing similar lags after upgrade to 11.5b. Seems to be consistent and repeatable.

  • Seems playback from Tidal streaming service only is affected (tracks from local NAS works fine; unfortunately I do not have valid accounts for other streaming services to try).
  • Upon track selection from Tidal album, lag is between 30 to 50 seconds, then playback starts, lasts playing for around 14 seconds, then U1 mini skips to next track in queue.
  • Subsequent queued tracks playback is started normally, without lag.

Experienced on U1 mini, DAC connected via USB, power cycling U1/DAC and U1 mini factory reset did not changed anything.

 

Any idea how to restore previous behaviour?

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7 hours ago, Akeg said:

Hello,

 

I am currently downsizing to a simple system consisting of only a Lumin U1 Mini and active speakers. Since the speakers will digitize any analog signal sent to them I will not send the output from the U1 Mini to my current DAC (Benchmark DAC2 HGC) for conversion to an analog signal.  Instead I  will connect the speakers directly to the AES/EBU output of the U1 Mini and use the built in digital volume control. 

 

The only audio input of the speakers (Dutch & Dutch 8C) is the AES/EBU input (which can also take analog XLR). This limitation creates a problem when I want to feed the speakers audio from Netflix etc. that I stream from a Macbook Pro to out TV using HDMI. I need to get the audio into the U1 Mini since this device occupy the only audio connection to the speakers. The only way, as I understand, is to Airplay the audio from my computer to the U1 Mini. I am still waiting for delivery of the new speakers, but I have tested using Airplay 2 with other speakers and the sound is delayed 2 seconds compared to the video signal to my TV due to the inbuild buffer in Airplay 2.

 

Does anyone know how to bypass the buffer in Airplay 2, or any other way of getting the audio signal into the U1 Mini without sync problems?

I can't help you with your setup, but I do know that the only way Airplay syncs video and audio is if the device sending the audio is also playing the video. For example, playing a Netflix video on an iPad, or in your case a Macbook, and Airplaying the audio to your Lumin would work.

 

Given the lack of inputs, perhaps you are trying to oversimplify too much?

 

 


 

"The function of music is to release us from the tyranny of conscious thought", Sir Thomas Beecham. 

 

 

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@Akeg There are multiple levels of AirPlay buffering from iOS to Lumin to USB DAC, I'm afraid the associated audio delay is not adjustable.  If that's not acceptable, perhaps you may consider other configurations of hardware setup.


Peter Lie

LUMIN Firmware Lead

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16 hours ago, mc said:

Seems playback from Tidal streaming service only is affected (tracks from local NAS works fine;

 

Please go into router settings and change DNS to 8.8.8.8.

 

Then power down all network devices including Lumin, NAS, iPad, etc.  After router has booted up from the DNS change, power cycle it again, along with all network switches or WiFi AP,  etc.  Wait for 5 minutes, then power everything back up.


Peter Lie

LUMIN Firmware Lead

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