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HD music on Phantom and Reactor in Dos2, UPnP: explanation

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HD files, those that you cannot play with AirPlay or Bluetooth without losing quality, are found in local music, or on premium streaming platforms, such as Tidal or Qobuz. Not Deezer. Not Spotify.

Fortunately, there is UPnP, and the good news is: there are universal and not too expensive apps that can be used to play local music or Tidal or Qobuz directly on Phantom Premier and Reactor.
What is l'UPnP ?
Universal Plug and Play (UPnP) is a set of networking protocols that permits networked devices, such as personal computers, printers, Internet gateways, Wi-Fi access points, and mobile devices to seamlessly discover each other's presence on the network and establish functional network services for data sharing, communications, and entertainment. 
Therefore UPnP is not only for audio purposes. 
However, in our cases, UPnP protocols can be used to stream audio files from a device to a Phantom or an Expert Pro, as long as every device is connected to the same network. 
Expert Pro with Core Infinity and Phantom Premier and Reactor are compatible with UPnP.
Important:

UPnP uses the existing network
UPnP range is the network range
UPNP sound quality

It is important to note that the UPnP protocol is a file sharing protocol, not a streaming one. UPnP transfers non modified files and their formats are processed locally, a streaming protocol has to support the file format to process it and deliver the audio content through a network connection.
If those protocols were postal services, UPnP would be a postal service that would transfer the parcel in its packaging (analog to the file format) without modifying it. A streaming protocol would change the packaging of the parcel to ensure the quality of delivery. 
As a consequence, UPnP supports any kind of format and any kind of sound quality.
How to use UPNP on Phantom or Reactor en Dos2 ?

FIRST CREATE A DEVIALET APP CONFIGURATION! You cannot use UPnP if the Reactor is not configured with the app.

If you have a NAS, configure it on your local network by following the instructions provided by the manufacturer.

Download the UPnP app you want to use and open it.
We suggest several possibilities for remote access applications such as Bubble UPnP (for Android), MConnect or QNAP (for iOS), Hifi-Cast, etc. These apps are very easy to find if you search the app store.
Please note that the manufacturers of NAS (QNAP, Synology ...) generally have their own dedicated application.

In the Devialet app, select the Online tab then UPnP in the available sources. The application will advise you to open Bubble UPnP on Android smartphones. For iOS, you can use MConnect, it's the same principle.


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Navigate the UPnP app you are using and play your favorite tracks! For example, in Bubble UPnP:

1- Click on More to access your local content, your Tidal, Qobuz accounts, etc.


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2- Click on the broadcast icon to choose on which speaker to play the song:
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How does it work ? 
he UPnP AV architecture specifies three important devices for audio playback: the Media Server, Media Renderer, and Control Point.

1. Media Server
A Media Server is a device that stores content, advertises the availability of this content for streaming across the network, and enables browsing/searching this content from control points. Media Servers can stream content to multiple devices and be controlled by multiple control points simultaneously.
Example: A very common Media Server for computer audiophiles is a network attached storage (NAS) unit. A NAS is a data storage server connected to a computer network, a kind of hard disk drive connected to a network.

2. Media Renderer
A Media Renderer is a device that either converts and/or reproduces audio. A renderer can convert network-based audio into another form of digital audio and pass this audio along to another non-UPnP AV device, or a renderer can convert the network audio into analog for playback.
Example: TVs, computers or game consoles such as Xbox are renderers. Phantom is a renderer. Expert Pro with Core Infinity and the latest firmware is a renderer. Reactor is a renderer.

3. Control point
A Control Point simply acts like an air traffic controller viewing planes ready for takeoff and sending them to a destination. A Control Point is often handheld like an iPhone, iPod Touch, iPad, or Android device. Through the Control Point's user interface, usually an app or web page, end-users browse Media Servers and select music for playback. The Control Point then instructs the Server and Renderer.
Example: iOS or Android phones, tablets, computers...
Note: What is DLNA?
Digital Living Network Alliance (DLNA), like UPnP, is an organization. What computer audiophiles commonly refer to as DLNA is really a set of guidelines, restrictions, or rules for interoperability that are broader but tighter than UPnP. By governing more items on the network the DLNA guidelines create a more restrictive ecosystem. In general, a DLNA certified device will work with UPnP devices but not all UPnP devices work with DLNA certified devices. Phantom and Expert Pro are not DLNA certified.
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