Part C: Q-LAN - Audio Channels vs. Audio Streams

Q-SYS QuickStarts : Networking Overview

2 ) Automatic Camera Preset Recall (ACPR)

13m 16s

3 ) Video Freeze for NV Endpoints

1m 41s

4 ) Camera Streams to NV Series devices

2m 47s

5 ) Q-SYS Security – Introduction and Best Practices

13m 35s

6 ) Integrating Microsoft Teams Room

8m 54s

7 ) Integrating Axon C1

14m 34s

8 ) Bring Your Own Control with Q-SYS

4m 32s

9 ) Feature License Activation

4m 12s

10 ) Q-SYS Video 101 Training

0m 0s

11 ) Block Controller

19m 9s

12 ) Online Connectivity & Security Considerations

12m 37s

15 ) Dynamic Pairing

6m 38s

16 ) Core-to-Core Streaming

8m 23s

17 ) Room Combining

12m 23s

18 ) Notch Feedback Controller

4m 0s

20 ) Intro to Control Scripting

12m 30s

22 ) E-Mailer

6m 30s

Lesson Description

Part C: Q-LAN - Audio Channels vs. Audio Streams 2m 29s

Network Audio Streams, Network Audio Channels and Local Audio Channels.

Video Transcript

Part C: Q-LAN - Audio Channels vs. Audio Streams 2m 29s
Let’s take a little time to talk about the Audio Channel capacities of the Q-Sys Core.
There are Network Audio Channels, local audio channels, Network Audio Streams
it can get a little confusing. So let’s walk through it point by point.
If you have an I/O Frame with four Line-In cards, each of those cards has four inputs.
If you plug a physical device into each of these inputs,
then you have sixteen channels feeding into your I/O Frame.
This information is all packaged into one Network Audio Stream and sent over the gigabit network to the Core.
This one Network Audio Stream contains sixteen Network Audio Channels,
which are the sixteen inputs on your I/O Frame.
You can check your design at any time in the Q-Sys Designer software
to find out how many Network Audio Streams and Network Audio Channels you are using.
You can press Shift +F6, or go to the File Menu and select Check Design.
This menu will tell you the percentage of Digital Signal Processing you are using,
the number of streams and channels for both your Network Audio Input s and Outputs,
as well as how much bandwidth these streams are using.
A Core 1000 is able to process 64 network channels in and 64 network channels out,
and if the system is running Designer software 3.0 or higher these become 128 flex channels,
which can be used for network channels in or out.
On top of this, don’t forget that you also have Local Channels.
Every Core has its own channels as well.
The Core 250i and the Core 500i, for instance, can each hold up to eight I/O Cards.
The audio from these cards go directly to and from the Core without ever going over the Gigabit network.
If you packed this Core with AES3 cards (which allow 4 inputs and 4 outputs each),
then you would have 32 local input channels and 32 local output channels in addition to the
128 network audio channels that you are also capable of processing.
More importantly, keep in mind that you can get far more physical output channels
than network output channels. Since output channels can often carry the same information
when you send your audio to multiple amplifiers and loudspeakers, they can share a network channel.
For more information on how to get the most out of your network channels, check out our
“Maximizing Output Channels” video. Thanks, and we’ll see you next time.

Helpful Tips and Definitions

Part C: Q-LAN - Audio Channels vs. Audio Streams 2m 29s

Network Audio Channel (NAC): A unique point-to-point audio signal on the network.

Network Audio Stream (NAS): A bundle of one or more NACs going to or from a single peripheral connected to the Q-LAN network, and wired in the design running on the Core.

Local Channel: An input and output channel using an I/O Card installed in the Core. Since local channels do not travel over the network, they do not count against your maximum NAC count.

Check Design: Select this option in the File Menu or press Shift+F6 to check on your DSP, NAC, NAS, and bandwidth use.

Downloads and Links

Part C: Q-LAN - Audio Channels vs. Audio Streams 2m 29s