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Wide Area Network Stream Transmitter 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 Transmitter can transmit audio to a WAN Stream Receiver on another Core, or to compatible media players such as VLC, or compatible hardware such as the Barix Exstreamer.

 

 

 

 

 

 

 

 

The following table shows the maximum sum of WAN Stream Transmitters and Media Stream Transmitters per Core.

Core

Model

Max Number

of Transmitters

Max Number of Channels

110f

4

24

250i

16

64

500i

16

64

1000

16

64

1100

64

128

3000

16

64

3100

128

256

4000

16

64

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 Output Level of the Transmitter.

N/A

Clip

Red LED indicating if the audio signal is being clipped.

N/A

Clip Hold

Button to hold the Clip LED on until released.

Off/On

Invert

Button to invert the output audio signal.

Off/On

Mute

Button to mute the output audio signal.

Off/On

Gain

(dB)

Controls the output gain.

Default = 0

Range = -100 to 20

Status

Displays the current status of the Transmitter 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 Transmitter

  1. Drag the Transmitter component into the Schematic of the design on the Transmitting Core.
  2. Select the Properties for the Transmitter.
  3. Connect the audio source to the inputs of the Transmitter.
  4. Ensure the Receiver's Properties on the other Core are configured to match this Transmitter's configuration.
  5. Both Cores must be running their respective designs.
  6. Start Transmission.

File Conversion

The only audio sources available to the Q-SYS WAN Transmitter are the Q-SYS Audio Player, and by using a line input. Both of these convert the audio to a 48 kHz sample rate, and there is no need for manual file conversion.

NOTE:  Both audio sources (Audio Player, and line input) can be run through whatever DSP you require prior to being transmitted.

External Streaming

The Q-SYS WAN Transmitter is capable of streaming audio to the VLC media player and Barix.

VLC media player

To stream audio to a VLC media player:

  1. You must have a Q-SYS Designer design running with a Transmitter configured and connected to an audio source.
  2. Download and install the latest open source VLC media player.
  3. Launch the VLC media player.
  4. On the VLC Main Menu select Media > Open Network.
  5. Select RTP from the Protocol drop-down list.
  6. Enter your design's WAN Stream Transmitter's (UDP) Even Port Number in the Port text box.
  7. Click Play.
  8. You can start transmitting from Q-SYS and receiving with the VLC media player.

Barix

To stream audio to a Barix Exstreamer:

  1. You must have a Q-SYS Designer design running with a Transmitter configured and connected to an audio source.
  2. You must have a Barix Exstreamer connected to your WAN per the manufacturer's instructions.
  3. On the Barix Exstreamer Device Configuration web page (http://xxx.xx.xxx.xxx) enter the following information:
    1. Stream Settings: URL: rtp://0.0.0.0: <transmitter UDP port number>
      If you enter all zeros, as in the example, the Exstreamer receives anything coming to the specified port. This is the IP Address of the Exstreamer.
  4. All other settings can be left at the defaults.
  5. Start streaming audio.

Properties

Channels

Property

Function

Choices

Channel Type

Sets the type of Channels in the WAN Stream Transmitter.

Must match the Receiver.

Stereo

Mono

Multi-Channel

Channel Count

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

Must match the Receiver.

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

3 to 16

Compression

Property

Function

Choices

Bit Rate

Sets the bit rate for the Transmitter. Higher bit rate delivers higher quality audio and requires more network bandwidth.

When Multi-Channel is selected, the Multi-Channel Stream Bit Rate is the Channel Count times the Bit Rate.

32, 48,64, 96, 128, 160, 224, 320
(kbit / second)

Streams

Property

Function

Choices

Count

Sets the number of audio streams for the Transmitter.

If you have multiple WAN Transmitters in your design, the maximum number of transmitted 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 transmitted.

The Interface selection allows you to associate streams with particular networks. For example, in a redundant network, redundant Core system, streams 1 and 2 to the primary Core would be associated with LAN A and LAN B respectively. It also allows use of the AUX A or AUX B interfaces, if desired.

LAN A, LANB, AUX A, AUX B

Destination IP Address

The IP address of the destination receiver, which must be a valid class D unicast address.

User Assigned

Even Port Number

Sets the port number.

IMPORTANT:   Must be an even number.

1024 to 49,150

Control Pins

The Control Pins are available for each channel, with the exception of the Status Control Pin which is for the whole component.

Pin Name

Value

String

Position

Pins Available

Clip

0

1

false

true

0

1

Output

Clip Hold

0

1

false

true

0

1

Input / Output

Gain

-100 to 20

-100 dB to 20 dB

0

1

Input / Output

Invert

0

1

normal

invert

0

1

Input / Output

Mute

0

1

unmute

mute

0

1

Input / Output

Peak Output Level

-120 to 43

-120 dB to 43 dB

0

1

Output

Transmitter 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

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