Wide Area Network Stream Receiver Component

The WAN Stream components allow you to stream MP3-compressed, 48 kHz sample rate audio between Cores, or between a Core and other devices, over a Wide Area Network (WAN). There are two WAN Stream components: the WAN Stream Transmitter, and the WAN Stream Receiver.

The WAN Stream Receiver is disabled on the inactive Core of a redundant pair. If the inactive Core becomes active, the WAN Stream Receiver is enabled on that Core.

The WAN Stream Receiver can receive audio from a WAN Stream Transmitter on another Core, or from compatible media players such as VLC, or compatible hardware such as the Barix Instreamer.

The maximum number of Media Stream Receivers plus WAN Stream Receivers you can have in a design for each Core is shown in the table below.

Core Model	Max Number of Receivers	Max Number of Channels
110f	4	24
250i	16	96
500i	16	96
1000	16	96
1100	16	96
3000	32	192
3100	32	192
4000	32	192

Controls

Once you establish the initial settings for a component, you can save those settings, along with all the other component's settings, in a Snapshot.

Control	Function	Default/Range
Peak Level (dBFS)	Meter displaying the Peak Input Level.	N/A
Invert	Button to invert the input audio signal.	Off/On
Mute	Button to mute the input audio signal.	Off/On
Gain (dB)	Controls the input gain.	Default = 0 Range = -100 to 20
Status	Displays the current status of the Receiver in both text and color. The following is a list of possible status colors, and some example conditions. OK – Green – (0) – Audio is good, hardware is good. Compromised – Orange – (1) – Audio is good but a redundancy mechanism is active (one LAN down but the other is still up) or a non-fatal hardware problem exists (fans too slow, temperature higher than expected, etc.) Fault – Red – (2) – Audio is not passing, or hardware is malfunctioning or mis-configured (amplifier power off, audio streams broken, wrong type of I/O Card installed, loudspeaker short circuit, etc.) Missing – Red – (3) – A piece of hardware, defined in the design, has not been discovered. Audio is not passing through that piece of hardware. Initializing – Blue – (5) – In the process of firmware, configuration update, and design start. Audio is obviously bad. Not Present – Gray – A virtual component in the design, that is designated as Dynamically Paired, and Not Required ,has no hardware assigned to it.	N/A

Using the WAN Receiver

Drag the Receiver component into the Schematic of the design on the Receiving Core.
Select the Properties for the Receiver.
Ensure the Properties for this Receiver match the associated Transmitter on the other Core.
Make the appropriate connections between the Receiver channels and the component, in the design, where you want the audio to begin the local processing.
Both Cores must be running their respective designs.
Start Transmission.

File Conversion

The Receiver can receive only 48 kHz sample rate streaming audio. If the Q-SYS Transmitter is used, the conversion is accomplished internally. However, if the stream is from an external source, for example VLC media player, file conversion must be performed on any file that does not have a 48 kHz sample rate. You can use the following procedure to convert the files.

You must have a Q-SYS Designer design running with a Receiver properly configured.
Download and install the latest open source Lame MP3 encoder.
In a Windows Command Prompt window, run 'Lame' to convert any file.mp3 to file_48.mp3 sampled at 48 kHz:
"\Program Files\lame\lame.exe" -b 64 --resample 48 " ..\path\file.mp3" " ..\path\file_48.mp3".

NOTE: The output bit rate in this exmaple is 64kbit/s. Type "\Program Files\lame\lame.exe" --help for information on all available command line options.

External Streaming

The Q-SYS WAN Stream Receiver is capable of receiving 48 kHz streaming audio from the VLC media player and a BARIX Instreamer.

VLC media player

To stream 48 kHz audio from a VLC media player on a Windows PC to the Q-SYS WAN Stream Receiver:

You must have a Q-SYS Designer design running with a Receiver properly configured.
Download and install the latest open source VLC media player on a Windows PC.
MP3 File: At a Windows Command Prompt window, enter the following to start streaming 48 kHz MP3 audio to the WAN Stream Receiver:
"\Program Files\VideoLAN\VLC\vlc.exe" "file.mp3" :sout=#rtp{dst=core_ip_address,port-audio=udp_port_number}
file.mp3 = path and file name of the file you want to play,
core_ip_address = address of the Core you are streaming to,
udp_port_number = the Even Port Number of the WAN Stream Receiver.
WAV File: At a Windows Command Prompt window, enter the following to start streaming a .wav file at 64 kbit/sec to the WAN Stream Receiver:
"\Program Files\VideoLAN\VLC\vlc.exe" "file.wav" :sout=#transcode{acodec=mpga,ab=64,channels=2,samplerate=48000}:rtp{dst=core_ip_address,port-audio=udp_port_number} -vv
file.wav = path and file name of the file you want to play,
core_ip_address = address of the Core you are streaming to,
udp_port_number = the Even Port Number of the WAN Stream Receiver,
ab=64 = the compression bit rate. The 64 can be replaced with: 32, 48,64, 96, 128, 160, 224, 320 (kbit / second).
The VLC Media Player is opened with the requested file. You can use the controls on the VLC Media Player as required. The audio is streamed to the destination WAN Stream Receiver.

Barix Instreamer

To stream 48 kHz (MP3) audio from a Barix Instreamer to the Q-SYS WAN Stream Receiver:

You must have a Q-SYS Designer design running with a WAN Stream Receiver properly configured.
You must have a Barix Instreamer connected to your WAN per the manufacturer's instructions.
On the Barix Instreamer Device Configuration web page (http://xxx.xx.xxx.xxx/uiconfig.html ) enter the following information:
1. Network: Leave at the default of zeros, or enter static information for the Barix Instreamer.
2. Audio:
  1. Channel Mode: Stereo or Mono to match the WAN Stream Receiver setting.
  2. Encoding+Frequency: MPEG1 / 48 kHz (MP3)
3. Streaming:
  1. Stream to: Conn. type: RTP, IP address of the Core, Port as on the WAN Stream Receiver, or
    Conn. type: RTP, Port as on the WAN Stream Receiver
4. All other settings can be left at the default.
Start streaming audio.

Properties

Channels

Property	Function	Choices
Channel Type	Sets the type of Channels in the WAN Stream Receiver. Must match the Transmitter.	Stereo Mono Multi-Channel
Channel Count	For Multi-Channel, sets the number of channels available for use on the Receiver. Must match the Transmitter. If you have multiple WAN Receivers in your design, the maximum number of received channels is 32.	3 to 16

Property

Function

Choices

Channel Type

Sets the type of Channels in the WAN Stream Receiver.

Must match the Transmitter.

Stereo

Mono

Multi-Channel

Channel Count

For Multi-Channel, sets the number of channels available for use on the Receiver.

Must match the Transmitter.

If you have multiple WAN Receivers in your design, the maximum number of received channels is 32.

3 to 16

Streams

Property	Function	Choices
Count	Sets the number of unicast audio streams for the Receiver, which should match the Transmitter. If you have multiple WAN Receivers in your design, the maximum number of received streams is 16.	1 to 8

Property

Function

Choices

Count

Sets the number of unicast audio streams for the Receiver, which should match the Transmitter.

If you have multiple WAN Receivers in your design, the maximum number of received streams is 16.

1 to 8

Stream (1 - 8)

Property	Function	Choices
Interface	Select the network interface on which the Stream (1 - 8) is to be received.	LAN A, LANB, AUX A, AUX B
Even Port Number	Sets the port number. IMPORTANT: Must be an even number.	1024 to 49,150

Property

Function

Choices

Interface

Select the network interface on which the Stream (1 - 8) is to be received.

LAN A, LANB, AUX A, AUX B

Even Port Number

Sets the port number.

IMPORTANT: Must be an even number.

1024 to 49,150

Control Pins

Pin Name	Value	String	Position	Pins Available
Channel n Gain	-100 to 20	n dB	0 1	Input / Output
Channel n Invert	0 1	normal invert	0 1	Input / Output
Channel n Mute	0 1	unmute mute	0 1	Input / Output
Channel n Peak Input Level	-120 to 43	-120 dB to 43 dB	0 1	Output
Receiver Status	0 1 2 3 4	OK (green) Compromised (orange) Fault (red) Unknown (red) Updating (blue)	0 0.250 0.500 0.750 1.00	Output