OMNIBUS 3.0
USER GUIDEOMNIBUS 3.0 User Guide

Table of Contents

1. Legal Disclaimer......................................................................................................32. Welcome to OMNIBUS............................................................................................4
2.1. What’s New in OMNIBUS 3.0...................................................................................5
3. Technical Specifications.........................................................................................6
4. Installation.............................................................................................................. 74.1. Authorization.............................................................................................................74.2. Free Demo................................................................................................................. 8
5. User Interface......................................................................................................... 95.1. Device List.................................................................................................................. 95.2. Routing Matrix........................................................................................................ 115.3. Settings.................................................................................................................... 125.4. Snapshots................................................................................................................ 14
6. Creating OMNIBUS Devices................................................................................. 17
7. NDI®.......................................................................................................................197.1. Setting Up NDI® Transmitters..............................................................................197.2. Setting Up NDI® Receivers....................................................................................20
8. AVB......................................................................................................................... 21
8.1. OMNIBUS AVB Configurator................................................................................. 228.2. Communicating with an OMNIBUS AVB Host.................................................... 23
9. Stream Deck Support........................................................................................... 25
10. Saving/Recalling OMNIBUS Configurations..................................................... 272

OMNIBUS 3.0 User Guide

1. Legal Disclaimer
The information in this document is subject to change without notice and does not
represent a commitment on the part of Audiomovers. The software described bythis document is subject to a License Agreement and may not be copied to othermedia. No part of this publication may be copied, reproduced or otherwisetransmitted or recorded, for any purpose, without prior written permission byAudiomovers.
Audiomovers and associated logos are registered trademarks of Audiomovers. Allother trademarks are the property of their respective owners and use of them does
not imply any affiliation with or endorsement by them.

© Copyright Audiomovers 2024. Audiomovers is part of Abbey Road Studios, the trading
name of Virgin Records Ltd. Registered in England no. 01070953.
Registered office: 4 Pancras Square, Kings Cross, London N1C 4AG

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2.

Welcome to OMNIBUS 3.0

OMNIBUS 3.0 is a powerful software solution designed for seamless audio routing
between multiple devices and applications. It communicates with all Core Audio
devices on your system, functioning like a virtual patchbay and enabling effortlessaudio routing across devices and software.

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2.1.

What’s New in OMNIBUS 3.0

OMNIBUS 3.0 boasts new networking options, a revamped UI and enhancements toexisting features, offering significantly greater flexibility in audio routing. OMNIBUS
3.0 updated features include:● Networking Capabilities: Route multichannel audio between different
machines on the same network via AVB or NDI®.
● Configurable Virtual Audio Devices: Four virtual devices, each supporting
up to 256 I/O channels.
● Application Capture: Separate system and application audio outputs.
● Session Management: Save and export entire OMNIBUS 3.0 sessions asfiles.
● Snapshot and Parameter Control: Recall snapshots and adjust parameters
using Elgato Stream Deck or MIDI program change.

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3. Technical Specifications
Minimum System Requirements
Processor

Intel core i7-8750H 2018+or M1+

Operating System

Mac OS 11+

Memory8 GB RAM6

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4. Installation
If you are new to Audiomovers, you need to create an account before you can start
using OMNIBUS. To create an account, click here, and then confirm your account
via the email sent to you.
To download OMNIBUS 3.0, log in to your Audiomovers account, navigate to theDownloads page, and click the “Download” button under the OMNIBUS app section.
To install OMNIBUS 3.0, run the OMNIBUS Installer and follow the instructions.
Once the installation is complete, you will be prompted to restart your computer.
MacOS Installation Path:/Applications/Omnibus/Library/Audio/Plug-Ins/HAL/Audiomovers.Omnibus.driver

4.1.

Authorization

To start using OMNIBUS 3.0, you need to authorize it. Upon launching OMNIBUS
3.0, an authorization dialog will appear.

Click “Authorize” to be directed to your Audiomovers account to complete theauthorization process.

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Follow the on-screen instructions to finish the authorization.

Note: If OMNIBUS is not authorized, all previously configured audio routes will bemuted.

4.2.

Free Demo

We offer a one-time, 7-day demo period available for new accounts. The demo
license can be authorized on a single computer only.

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5. User Interface

5.1.

Device List

When opening OMNIBUS 3.0 for the first time, the routing matrix will be empty
apart from the “OMNIBUS A” virtual device. Users will need to add the audio devices
they wish to use. To do this, click the “Add” button at the top of the devices window.
Here, you can select any hardware or virtual devices on your computer, create new
OMNIBUS devices, add applications for application capture, and include NDI®
transmitters/receivers. This dropdown is color coded:

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1. Devices: All available Core Audio devices on your system (excluding
OMNIBUS virtual drivers).

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2. Application Capture: Selected applications will appear as audio sources inthe routing matrix. (Only available when your Mac’s system audio is set to an
OMNIBUS device, e.g. OMNIBUS A).
3. OMNIBUS Virtual Devices: Here you can create OMNIBUS devices. These
multichannel virtual drivers can be used as I/O devices in any software. You
can create up to four OMNIBUS devices, each configurable with 2 to 256
channels of I/O.
4. NDI® Transmitter/Receiver: NDI® transmitters create an audio device thatuses the NDI® protocol for network-based audio transmission.
5. Devices in Use: Audio devices added to the OMNIBUS routing matrix.

5.2.

Routing Matrix

The OMNIBUS routing matrix allows you to create and manage your routing
configurations. Input/source channels are listed on the left side of the matrix, while
output/destination channels are displayed at the top.

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To route audio through the routing matrix, click on the corresponding cell toconnect a source to a destination. For example, you can route the “MacBook built-inmicrophone” to channel 1 of OMNIBUS B.
Hovering your cursor over a cell will display a prompt indicating the source device
channel and the destination device channel associated with that cell. To finalize therouting, click on the cell to assign the audio path.

To route multiple channels in series, click and hold while moving your cursor along
the matrix. This allows you to cascade your routing. You can route multiple
channels horizontally, vertically, and diagonally.

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5.3.

SettingsOMNIBUS features an enhanced settings panel on the left side of the UI, allowing
for easy adjustment of your settings.

1. Global Sample Rate & Buffer Size: Select from 44.1 to 192 kHz as the global
sample rate for OMNIBUS. Any device routed through OMNIBUS with adifferent sample rate will be converted to this global sample rate.

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The buffer size set in OMNIBUS is added to the overall roundtrip buffer. For
example, if your DAW is set to 32 samples and OMNIBUS is set to 32 samples,
the total buffer will be 64 samples.
2. Clock drift compensation: When enabled, OMNIBUS will apply sample rate
conversion to audio passing through the application. When disabled, audio
will be bit perfect. In some cases, external device clocking may be needed.
(N.B. the sample rate of OMNIBUS and external device must match toachieve bit-accurate audio output).
3. MIDI Input: Select the MIDI input device you wish to use to control snapshot
switching.
4. View/Visual Settings: Adjust OMNIBUS visual settings, including UI scaling,brightness/darkness of the routing matrix, device coloring for easiernavigation, visibility of the routing matrix, and the option to keep OMNIBUS
always on top of your Mac monitor.
5. Run at Startup/Turn off Audio Engine/Lock I/O Levels: Choose whether
you want OMNIBUS to launch at startup. OMNIBUS will run in the
background by default, even if the application is closed.
To conserve processing power when not using OMNIBUS, you can turn off
the audio engine upon quitting the application.
You can also lock the output and input level sliders of your OMNIBUS devices
to prevent accidental adjustments.
6. Clear Channel Names/Routing Configurations: Quickly remove yourrouting configurations and custom channel names using this option.

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5.4.

Snapshots

OMNIBUS 3.0 allows you to save your routing configurations as snapshots forfuture use. You can store up to 128 snapshots in the Snapshots tab, each of which
can be individually named. Additionally, nine of these snapshots can be assigned tohotkeys. All 128 snapshots can be assigned to Stream Deck buttons, or MIDI
Program Changes on a MIDI controller.
To save a routing configuration as a snapshot, follow these steps:
1. Once you are satisfied with your OMNIBUS routing configuration, click the“Save As” button to create a snapshot.
2. Press “Save” to save the routing configuration. (If saving configuration on aselected snapshot).
3. To rename the snapshot, double-click on the default name “snapshot no.”and enter your chosen name.
4. To assign the snapshot to a hotkey, right-click on the snapshot number.

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1. Hot Snapshot Panel: Users can assign up to nine snapshots in the Hot
Snapshot Panel by right clicking on a snapshot. You can recall hot snapshotswith key command Cmd + 1-9
2. Snapshot Controls:● Delete Snapshot● Save● Save As● Select next or previous snapshot
3. Snapshot Number/Name (selected snapshot highlighted in purple):● Right-click to assign hotkey● Double-click to change name16

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6. Creating OMNIBUS Devices
Users can create OMNIBUS devices in the device list, with the option to create up tofour OMNIBUS drivers. To create these drivers, users can click on the “Add” button
and then navigate to the “Add Virtual Device” button.
OMNIBUS virtual devices can be configured in the device settings. Users can selectthe IO channel count for these devices, ranging from 2 to 256 channels of I/O. Oncecreated, the device will appear in both the OMNIBUS routing matrix and the device
list.
For convenience, users can modify the virtual device’s name. Any changes made tothe device name will be reflected in the system, appearing in both the Audio Midi
Setup and Audio System menus.
To remove virtual devices, users can select the desired device and click on the“Remove Selected” button, or alternatively, right-click on the device box and choose
the “Delete” option. It’s important to note that the OMNIBUS A virtual device isalways present and cannot be removed.

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7. NDI®
NDI®, or Network Device Interface, facilitates the connection between NDI-enabled
devices over IP networks. With OMNIBUS 3.0, you can create NDI-enabledtransmitters and receivers, enabling seamless audio transmission between other
NDI-enabled devices or software applications.

7.1.

Setting Up NDI Transmitters

You can create NDI transmitters in the device list located at the bottom of the “AddDevices” tab.
When you create an NDI transmitter, a stereo NDI transmitter will be added to bothyour device list and routing matrix. As it functions as a transmitter, it will onlyappear as an output destination in the routing matrix.
To adjust the settings of the NDI transmitter, click on the settings button located at
the top right of the transmitter in the device list.

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1. I/O Channels: Choose the channel count for your transmitter device, ranging
from 2 to 128.
2. Transmitter Name: Assign a custom name to your transmitter. This isparticularly useful when using multiple NDI transmitters.
3. Sample Rate: Select the sample rate for the NDI transmitter. This
determines the sample rate of the stream, allowing transmission at adifferent sample rate than OMNIBUS’ global sample rate.
4. Buffer Size: Determine the buffer size of the NDI transmitter, which isseparate

fromtheOMNIBUS

buffersize. Higher buffer sizes arerecommended when transmitting over wifi or slow network. Note: Highersample rates result in lower buffer size.
Any NDI transmitter available on your network will be visible in the device list,
allowing you to add them into your routing matrix.

7.2.

Setting Up NDI Receivers

When OMNIBUS detects an NDI-enabled device with audio outputs on yournetwork, it will be listed in the OMNIBUS device list for you to add to your routing
matrix. Let’s take another Mac with OMNIBUS 3 on the same network as anexample.
Since this device functions solely as a receiver, once it’s added to the routing matrix,
it will only be visible on the input/source channels path of the routing matrix.

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8. AVB

Note: OMNIBUS AVB devices are bidirectional, allowing hosts to route audio to andfrom machines and AVB devices via an AVB switch.
AVB devices in OMNIBUS support a maximum sample rate of 192 kHz, a channel
count of 256, and a maximum bit depth of 32-bit floating point.
To make use of AVB capabilities, you must have an ethernet interface with AVB
support. Please refer to the Ethernet specifications sheet for details. Most Apple21

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computers come with built-in Ethernet adapters that support the AVB protocol.
Alternatively, you can add AVB-enabled Ethernet adapters via the Thunderbolt port.
OMNIBUS enables you to configure the AVB network and utilize its audio
capabilities.
Note: Configuration settings are available only when an AVB-enabled Ethernet
adapter is detected on your system. It will not be possible for non-AVB Ethernet
adapters.
Note: AVB devices will appear as Core Audio devices when the connection is peerto peer. When connecting via a switch, the user will need to enable the device via
the Apple Network Device Browser. (This can be found in Audio MIDI
Setup/Menu/Window/Show Network Device Browser).

8.1.

OMNIBUS AVB Configurator

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You can access the OMNIBUS AVB Configurator from the OMNIBUS header icon on
your computer. Here, you can configure OMNIBUS AVB devices.
OMNIBUS creates bidirectional AVB devices, which can be particularly useful whenconnecting a machine without OMNIBUS installed over a network.
When creating an AVB device in the AVB configurator, you will be prompted toselect the OMNIBUS AVB device’s channel count, name, and AVB path. Once added,
this AVB device will appear in your OMNIBUS device list and routing matrix.
Custom names can be assigned to AVB devices, and each AVB device can support
up to 256 channels. Channel configurations can be selected with streams andchannels per stream in mind to optimize CPU usage and bandwidth.
When selecting the number of channels and streams combination from thedropdown menu, you may find it helpful to refer to the AVB stream size andtradeoffs guide available at the provided link:
AVB Stream Size and Tradeoffs Guide
Note: If no network device with AVB support is detected on your computer, the AVB
configurator will be unavailable.

8.2.

Communicating with an OMNIBUS AVB Host

As previously mentioned, OMNIBUS 3.0 can communicate through AVB with otherMacs that do not have OMNIBUS installed. This capability allows for seamless audio
communication between OMNIBUS-equipped Macs and those without OMNIBUS,enhancing collaboration and flexibility in audio routing across networks.

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Once you have connected a Mac machine to an OMNIBUS-enabled machine, theOMNIBUS machine will appear as an audio device on your Mac. This enables
bidirectional communication between the two, allowing both the Mac and theOMNIBUS-enabled machine to communicate seamlessly with each other.

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9. Elgato Stream Deck Support
OMNIBUS now integrates Stream Deck functionality, enabling users to control
multiple parameters of OMNIBUS directly from an Elgato Stream Deck without
needing to access the OMNIBUS interface.
The Stream Deck plugin is included in the OMNIBUS 3.0 installer and must be
installed in your Stream Deck application. You can assign the following parameters:
Audio Settings:● Sample Rate: Assign the global sample rate of OMNIBUS.
● Buffer Size: Assign the global buffer size of the OMNIBUS application andview the current buffer size.
Miscellaneous:
●
●
●
●
●
●Toggle Input Volume for OMNIBUS Devices
Toggle Output Volume for OMNIBUS Devices
Use Colors for Devices
Show Routing Matrix
Keep OMNIBUS Always on Top
Adjust the Scale/Zoom of the OMNIBUS User Interface

Snapshots:●●●●●Display the Current Snapshot Used in OMNIBUS
Navigate to Next or Previous Snapshots
Save New Routing to Snapshot
Delete Current Snapshot
Recall Snapshots Saved in OMNIBUS

Each of these options can be assigned to a button on your Stream Deck forconvenient and efficient control of OMNIBUS parameters.

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10. Saving/Recalling OMNIBUS Configurations
OMNIBUS 3.0 introduces the capability to save your OMNIBUS settings to files on
your computer. These files can then be utilized on multiple machines, allowing youto recall your OMNIBUS routing settings on any machine with OMNIBUS installed.
This feature is particularly beneficial for large facilities and facilitates the sharing ofrouting setups with clients and colleagues.
To save OMNIBUS profiles, navigate to the OMNIBUS tab located at the top of yourcomputer header and proceed to: OMNIBUS/Projects/Save. Users have theflexibility to choose the location where they want to save their OMNIBUS profiles on
their machine.
To recall OMNIBUS sessions, go to: OMNIBUS/Projects/Load.

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You can also find this under the “File” dropdown when OMNIBUS is open on thedesktop. Select “Save” or “Load” here to save or load a previous profile.
This streamlined process ensures efficient management and retrieval of yourOMNIBUS routing configurations.

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