LUMIN - Audiophile Network Music Player

[The Computer Audiophile]

Also, music from the L2 isn't playing on the D3. When I switch to a MinimServer, it plays just fine. 

 

Here's a video of me trying to stream from the L2 to the D3. When the queue hits a Tidal album, it plays just fine.

 

 

 

 

 

[The Computer Audiophile]

13 hours ago, wklie said:

 

That looks like an IP address change.

 

Please

• Reserve an IP address for the L2 in the router DHCP reservation table, then reboot the L2
• Make sure L2 is running firmware 2.29 (latest at the time of this post)
• In Lumin app About L2, "Press and Hold to Reset Database"
• After L2 completes its scanning, in Lumin app, Reload Library of L2

The Lumin D3 Google DNS setting should take effect immediately.

Everything is working now. 

[The Computer Audiophile]

I’ve always used the Ubiquiti BiDi single mode SFP modules with great success.  

[The Computer Audiophile]

4 hours ago, Patatorz said:

Would you have a specific reference to share ?

What do you mean?

[The Computer Audiophile]

Here’s the official page: https://store.ui.com/us/en/pro/collections/accessories-pro-long-distance-modules/products/1-gbps-bidirectional-single-mode-optical-module

 

Also note: BiDi transceivers (bidirectional transceivers) enable full-duplex data transmission via a single optical fiber. The data transmission from A to B (sending) takes place on a different wavelength than on the return path from B to A (receiving). 

[The Computer Audiophile]

1 minute ago, SQFIRST said:

 

Curios about your preference of Bidi over regular SFP as I have never tried it. 

I use it because it enables me to use half the amount of cabling. For example, I have a number of fiber strands that run from my basement to my upstairs. Running more fiber is a pain. Thus, using a single strand per device is much preferred by me. 

[The Computer Audiophile]

14 minutes ago, One and a half said:

I do recall this item coming up now and again. 

Let's analyse a little, guess and make a conclusion.

 

Royalty(?) free audio over Ethernet is either Ravenna or DLNA. Also read into DLNA as uPNP. DLNA is a bit of a mess as far as servers and endpoints are concerned.

Early days DLNA was unworkable. Audirvana has proved that wrong, and their transmission works and actively encourages DLNA.

 

Roon implemented their own protocol, cause DLNA was a mess, so that's one direction. See what happens when you design something by a committee, just look at the USB-C debacle. The other direction was HQPlayer and NAA for similar reasons.

 

Lumin prefers an open format, so supports Open Home, DLNA. Commercially and technically Lumin supports Roon, has certification. Given that no one agrees in audio on a format/protocol apart from very rare instances (Redbook, S/PDIF) there's little wonder that NAA hasn't arrived at Lumin. Is it too niche, or just difficult to implement on the Firmware in Lumin products which now go back 10 years +. Lumin still supports legacy products to the originals, perhaps these devices couldn't accept NAA due to technical issues. 

Perhaps the cupboard is full of different algorithms, (Roon, Open home, DLNA, Tidal, MQA, Qobuz and on and there's not enough space any more.

One could argue the reason I2S is not installed on Lumin products, is that there isn't a standard even on the connector, let alone on the transmission. Audio designers go their own way to the detriment of the wider audio community at times.

I vote for AES67 support :~)

[The Computer Audiophile]

Hi @wklie I’m testing the multi-room functionality and having some issues. 
 

The system is L2 server, A1, and D3. The D3 is set as the sender for the A1. The D3 and A1 are connected via copper Ethernet to the L2. The L2 is connected via fiber to my network. 
 

I’m playing 16/44.1 content from the L2 library to the D3 and the A1. 
 

The audio on the D3 is perfect. The audio on the A1 is often garbled. 
 

Is this supposed to work?

[The Computer Audiophile]

3 hours ago, wklie said:

 

It seems that the feature has an issue with our older models.  While we investigate this issue:

 

As a workaround, please turn on D3 re-sampling, and upsample 44.1kHz to 88.2kHz (or 176.4kHz) to see if it plays normally for the A1 as a multi-room receiver.  If that still does not work, turn off Lumin Streaming (AirPlay) and Spotify Connect on the A1.

Will try today and let you know. Thanks. 

[The Computer Audiophile]

6 hours ago, wklie said:

 

It seems that the feature has an issue with our older models.  While we investigate this issue:

 

As a workaround, please turn on D3 re-sampling, and upsample 44.1kHz to 88.2kHz (or 176.4kHz) to see if it plays normally for the A1 as a multi-room receiver.  If that still does not work, turn off Lumin Streaming (AirPlay) and Spotify Connect on the A1.

I set it to upsample 44.1 to 176.4 as a test, and it has been playing perfectly for the last 15 minutes. Looks like this is a solution. I would've heard the garbled audio by now if the problem was still there. 

[The Computer Audiophile]

@wklie Any plans to support two 8TB drives in the L2?

[The Computer Audiophile]

Hi Guys, my review of the Lumin L2 is up!

 

 

[The Computer Audiophile]

I've always found latency in audio playback a non-issue. If I buffer 10 seconds of audio in RAM, giving me a latency of 10 seconds, is this different from buffering 30 seconds of audio in RAM? What about no buffer?

 

What about the buffer inside DACs that objectivists claim exists in all well designed DACs and removes jitter :~)

[The Computer Audiophile]

I should also add that I have friends who swear by the absolute lowest latency achievable. It doesn't make sense to me, but it doesn't have to. I even except the ultimate in high latency, the postman delivering an album after ordering it :~)