UltraLite AVB ™ User Guide Title Page 1280 Massachusetts Avenue Cambridge, MA 02138 Business voice: (617) 576-2760 Business fax: (617) 576-3609 Web site: www.motu.com Tech support: www.motu.
SAFETY PRECAUTIONS AND ELECTRICAL REQUIREMENTS FOR THE ULTRALITE AVB (“PRODUCT”) CAUTION! READ THIS SAFETY GUIDE BEFORE YOU BEGIN INSTALLATION OR OPERATION. FAILURE TO COMPLY WITH SAFETY INSTRUCTIONS COULD RESULT IN BODILY INJURY OR EQUIPMENT DAMAGE. HAZARDOUS VOLAGES: CONTACT MAY CAUSE ELECTRIC SHOCK OR BURN. TURN OFF UNIT BEFORE SERVICING. WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRICAL SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR OTHER MOISTURE.
Contents Part 1: Getting Started 7 Quick Start Guide 9 UltraLite AVB Front Panel 10 UltraLite AVB Rear Panel 11 MOTU AVB Control Web App 21 About the UltraLite AVB 25 Packing List and System Requirements 27 Software Installation 31 Hardware Installation Part 2: Using the UltraLite AVB 45 Presets 49 The Front Panel LCD 51 Working with Host Audio Software 59 Mixer Effects 65 Networking Part 3: Appendices 73 Troubleshooting 75 Audio Specifications 77 Mixer Schematics 81 Updatin
About the Mark of the Unicorn License Agreement and Limited Warranty on Software TO PERSONS WHO PURCHASE OR USE THIS PRODUCT: carefully read all the terms and conditions of the “click-wrap” license agreement presented to you when you install the software. Using the software or this documentation indicates your acceptance of the terms and conditions of that license agreement. Mark of the Unicorn, Inc. (“MOTU”) owns both this program and its documentation.
Part 1 Getting Started
Quick CHAPTER Start Guide Thank you for purchasing an UltraLite AVB! Follow these easy steps to get started quickly. ■ From your iPad or iPhone, launch the MOTU AVB Discovery app, and tap your interface. 1 Download and run the MOTU AVB Installer or MOTU AVB USB Installer.exe found here: ■ You should now see the MOTU AVB Control web app in your browser, as shown on page 12. If not, visit Appendix A, “Troubleshooting” (page 73). http://www.motu.
UltraLite AVB Front Panel 11 1 10 2 1. MIC INPUT #1. The other mic input is on the rear panel. Each input provides individual preamp gain (56 dB), switchable 48V phantom power, and an optional -20 dB pad. 2. GUITAR INPUTS with volume control. These are highimpedance guitar inputs that provide authentic guitar amp volume response and feel. 3. HEADPHONE OUTPUT with volume control. 4. Individual MIC INPUT preamp gain, switchable 48V phantom power, and optional -20 dB pad switches for each mic input.
UltraLite AVB Rear Panel 1 9 1. The UltraLite AVB operates as a USB MIDI interface, allowing MIDI software to communicate with connected MIDI devices through the USB connection to the computer. Connect a MIDI device here using standard MIDI cables. Connect the UltraLite AVB’s MIDI OUT port to the MIDI IN port on the other device. Conversely, connect the UltraLite-AVB’s MIDI IN port to the MIDI OUT port on the other device. For further details, see “MIDI connections” on page 40. 2.
MOTU AVB Control Web App CHAPTER OVERVIEW MOTU AVB Control is a web app that gives you complete control over the UltraLite AVB. If you have several MOTU AVB interfaces networked together, such as the UltraLite AVB, 1248 and 8M, you can control them all. If you are working with a large network of many MOTU AVB interfaces, you can access any device on the network. MAKE HARDWARE AND NETWORK CONNECTIONS Connect your UltraLite AVB to your computer or laptop with a USB cable.
DEVICE TAB 6 7 8 9 10 11 5 12 4 3 2 13 14 1 15 16 17 1. If you have two or more MOTU AVB interfaces, the Device list lets you choose the one you are currently controlling with the web app. 7. Lets you create, save, recall and manage presets for the UltraLite AVB. These presets capture and recall the complete state of the device (all settings in all tabs). 2. The Aux Mixing tab lets you view each Aux bus in the mixer, one at a time. 8. Choose the desired sample rate. 3.
DEVICE TAB (CONTINUED) 18 19 20 25 21 24 23 22 Scroll down to view these additional Device tab settings. 18. AVB is IEEE’s Audio Video Bridging Ethernet standard for highbandwidth, low-latency audio streaming over Ethernet. If your UltraLite AVB is connected to a 2nd MOTU AVB interface through its network port, or to an AVB switch for access to an extended AVB network, you can stream audio channels to and from other devices on the network.
ROUTING TAB 4 5 6 7 8 9 10 3 11 2 12 13 1 14 20 19 15 18 17 16 The Routing Tab lets you route inputs to outputs. Outputs are listed by row on the left; inputs are listed in columns across the top. Simply click in the grid to make a single connection. Click and drag to make multiple connections in one gesture. To route a single input to multiple outputs, make multiple connections vertically in the same column below the input.
MIXING TAB 3 4 5 6 7 8 9 10 11 12 13 14 15 16 2 17 1 31 18 30 29 19 20 28 21 27 22 23 24 26 The Mixing tab gives you full access to the 48-channel mixer in the UltraLite AVB, which provides a main mix bus, monitor bus, three group busses, seven aux busses, and a dedicated reverb bus. Use the Device tab to configure how many inputs you wish to work with (up to 48). Use the Routing tab (page 14) to route channels to the mixer inputs.
AUX MIXING TAB 3 4 5 6 7 8 9 10 2 1 16 15 11 12 14 13 The Aux Mixing tab provides quick access to the UltraLite AVB’s mix busses (aux busses, groups and reverb bus), viewed one at a time. Choose a bus in the Aux Mix Target section and then use the faders to directly mix the send levels from all mixer inputs, groups, and the reverb bus. 1. Shows and hides the Mixer Setup sidebar (3), which lets you show and hide channels. 2.
MIXER INPUT CHANNEL STRIPS 1 2 6 7 8 4 5 To access a mixer input channel strip, go to the Mixing tab (page 15), reveal the side bar (item #3 on page 15), and then show the input channel you want in the Mixer Inputs section (30). 26 25 3 2 To show and hide sections of the channel strip, such as EQ or the compressor, use the Controls section of the side bar (item #3 in the Mixing tab on page 15). 9 1. Click the input channel name to change it. Delete the current name to restore the default name.
MAIN MIX AND MONITOR CHANNEL STRIPS 1 2 3 3 14 4 5 6 4 5 7 To access the Main Mix and Monitor bus channel strips, go to the Mixing tab (page 15) and scroll the display to the right, beyond the inputs and groups. To show and hide sections of the channel strip, such as EQ or the Leveler, use the Controls section of the side bar (item #3 in the Mixing tab on page 15). 8 1. By default, the Monitor bus serves as a solo bus.
AUX BUS CHANNEL STRIPS 1 2 10 3 Aux busses can be used to create sub-mixes. An aux bus can be assigned to any output in the Routing grid (page 14). 4 9 To access an Aux bus channel strip, go to the Mixing tab (page 15), reveal the side bar (item #3 on page 15), and then show the aux busses you want in the Mixer Outputs section (27). To show and hide the four-band EQ section of the channel strip, use the Controls section of the side bar (item #3 in the Mixing tab on page 15). 1. A stereo aux bus. 2.
GROUP AND REVERB CHANNEL STRIPS 1 9 2 3 Group busses can be used to create a mix subgroup, which is a set of inputs you wish to control together as a group. Groups differ from aux busses in that they have aux sends, a reverb send, as well as a main mix send. In addition, group busses are equipped with the Leveler. 4 The Reverb bus is a special group bus that provides a reverb processor. If you disable the reverb, the reverb bus functions as a (fourth) regular group bus.
CHAPTER 1 About the UltraLite AVB UltraLite AVB is an 18 x 18 USB/AVB audio interface with console-style 48-channel mixing, DSP effects, wireless control , AVB audio networking and very high quality A/D/A conversion at sample rates up to 192 kHz for onthe-go mobile audio recording. Powerful DSP delivers large console style mixing with 48 channels, 12 stereo busses, and 32-bit floating point effects processing, including modeled analog EQ, vintage compression and classic reverb.
Modeled vintage effects processing Effects include “classic” reverb, compression modeled after the legendary Teletronix LA-2A compressor, and 4-band EQ modeled after British analog console EQs. AVB system expansion and audio networking AVB stands for the IEEE 802.1 Audio Video Bridging Ethernet standard for high-bandwidth, low-latency audio streaming over Ethernet. The AVB Ethernet network port on the UltraLite AVB lets you add a second AVB-equipped MOTU interface using any standard CAT-5e Ethernet cable.
Precision Digital Trim™ Analog inputs are equipped with digitally controlled analog trims, adjustable in 1 dB increments. Analog outputs offer 32-bit trim in the DAC, also adjustable in 1 dB increments. You can save your trim configurations as a preset for instant recall. Rack mount or desktop operation The UltraLite AVB is housed in a sturdy, metalalloy half-rack enclosure. Rack mounting brackets are included for mounting side by side with any other MOTU half-rack unit.
ABOUT THE ULTRALITE AVB
CHAPTER 2 Packing List and System Requirements PACKING LIST PLEASE REGISTER TODAY! the UltraLite AVB ships with the items listed below. If any of these items are not present in the box when you first open it, please immediately contact your dealer or MOTU. Please register the UltraLite AVB today. There are two ways to register.
PACKING LIST AND SYSTEM REQUIREMENTS
CHAPTER 3 Software Installation OVERVIEW USB 2.0 class-compliant operation. . . . . . . . . . . . . . . . . . . Operation as an AVB Ethernet audio interface . . . . . . . Software installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Audio drivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MOTU AVB Discovery app for Mac . . . . . . . . . . . . . . . . . . . MOTU AVB WebUI Setup for Windows . . . . . . . . . . . . . . .
If none of the above scenarios apply to you, then you can skip software installation if you wish, and proceed to details about accessing the web app through the network port, see “MOTU AVB Control Web App” on page 11. connected to the Mac, either directly through USB or on your network, and displays them in a list. Choose an interface to access its settings through the web app (“MOTU AVB Control Web App” on page 11).
produce more delay; smaller buffers produce less. For complete information about this setting, see “Working with Host Audio Software” on page 51. MIDI I/O ON WINDOWS On Windows, the MOTU AVB installer provides a USB MIDI driver for the UltraLite AVB. This driver allows you to access the UltraLite AVB’s MIDI input and output ports through its USB connection to the computer. The ports are published in Windows and are available to all MIDI software.
AUDIODESK WORKSTATION SOFTWARE AudioDesk is an advanced workstation software package for Mac and Windows that lets you record, edit, mix, process, bounce and master multi-track digital audio recording projects. Advanced features include real-time effects processing, recording, and much more. See the AudioDesk User Guide, available on your computer hard drive as a PDF document. Figure 3-4: Device settings. 4 Repeat the above steps for each MIDI device connected to the interface.
CHAPTER 4 Hardware Installation OVERVIEW USB AUDIO INTERFACE SETUP USB audio interface setup . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 AVB Ethernet audio interface setup. . . . . . . . . . . . . . . . . . 32 Setup for two interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Setup for three to five interfaces. . . . . . . . . . . . . . . . . . . . . 33 Setup for a multi-switch network . . . . . . . . . . . . . . . . . . . . 34 Setup for multiple interfaces. . . . . . . .
AVB ETHERNET AUDIO INTERFACE SETUP SETUP FOR TWO INTERFACES OR Thunderbolt is available on other MOTU AVB-equipped interfaces, such as the 1248, 8M, 16A and 112D. Use this setup if you want to use the UltraLite AVB as an AVB Ethernet audio interface for a recentgeneration Mac (i.e. any Mac with a Thunderbolt port on it). Mac OS X Yosemite (10.10) or later is also required for AVB audio I/O. ■ Use a standard CAT-5e or CAT-6 cable. ■ Connect to the computer’s Ethernet port.
SETUP FOR THREE TO FIVE INTERFACES Use this setup if you want to connect three to five MOTU interfaces to your computer using a MOTU AVB Switch™ (sold separately). ■ The connection to the computer can be USB or Thunderbolt (if you have a Thunderbolt-equipped MOTU AVB interface). Use Thunderbolt, if possible, to support a large number of audio streams to and from the networked interfaces. A single Thunderbolt connection supports 128 channels in and out, simultaneously.
SETUP FOR A MULTI-SWITCH NETWORK ■ You can daisy-chain switches in serial fashion, but don’t create loops. For example, switches A, B, and C below are chained properly, but don’t connect C back to A. Alternately, you could connect both Switches B and C to Switch A. Use this setup if you want to connect more than five MOTU interfaces to an extended network that employs multiple AVB switches. AVB Ethernet is an industry standard, so you can use MOTU AVB Switches or 3rd-party AVB switches.
SETUP FOR MULTIPLE INTERFACES It is possible to connect multiple MOTU interfaces directly to your host computer through multiple USB (and Thunderbolt) ports. Alternately, you can connect multiple interfaces, operating as AVB Ethernet audio interfaces, using an AVB switch connected directly to the Mac.
SETUP FOR WEB APP CONTROL The MOTU AVB Control web app gives you access to all settings, routing, mixing, and effects processing in the UltraLite AVB, and each interface on the AVB network, if applicable. For more info, see “MOTU AVB Control Web App” on page 11. The web app is a web application served by the hardware. All you need to run it is a web browser running on a device that has a connection to your audio interface through USB or a shared network.
Ethernet cable A simple Ethernet cable connection can be used for web app control, even without a USB or Thunderbolt connection to your computer. For example, if you are using your MOTU device as a mixer or audio router, you could control the on-board routing, mixing and effects from the web app through a standard Ethernet connection. Wi-Fi When using standard Wi-Fi as shown, you can control the UltraLite AVB from multiple Wi-Fi devices simultaneously.
A TYPICAL ULTRALITE AVB SETUP Here is a typical UltraLite AVB setup. This rig can be operated with or without a separate mixer. All mixing and effects processing can be done in the UltraLite AVB itself, controlled from your laptop, tablet, and smart phone — or several devices simultaneously. UltraLite AVB front panel Headphones Bass Synthesizer Secondary studio monitors Guitar Primary studio monitors MIDI I/O connected to keyboard synth, MIDI controller or other MIDI devices.
AUDIO CONNECTIONS Here are a few things to keep in mind as you are making audio connections to your UltraLite AVB interface. Mic inputs with preamps Connect a microphone using a standard mic cable. ☛ Quarter-inch analog outputs are not cross-coupled. Therefore, when connecting an unbalanced plug, use a TRS plug with the ring disconnected. Not floating the negative terminal will short it to the sleeve ground and cause distortion.
TOSLink (optical S/PDIF) Alternately, the optical ports can be configured for stereo TOSLink (optical S/PDIF) in the web app (item #21 on page 13). The optical IN and OUT banks can be configured independently. Choosing a clock source for optical connections When connecting an optical device, make sure that its digital audio clock is phase-locked (in sync with) the UltraLite AVB. There are two ways to do this: A. Resolve the optical device to the UltraLite AVB B.
SYNCING AN AVB NETWORK The AVB protocol provides sophisticated and accurate timing, synchronization, and clocking features for AVB device networks of any size as shown on pages 33-34, including: ■ Low latency ■ Network-wide time base ■ Better-than-sample-accurate phase lock across all connected devices ■ Timing accuracy down to the nanosecond Choosing a master clock The web app provides an easy way to choose one device as the master clock for your whole MOTU AVB network.
HARDWARE INSTALLATION
Part 2 Using the UltraLite AVB
CHAPTER 5 Presets OVERVIEW AUDIO INTERFACE Because of its advanced, extensive feature set, the UltraLite AVB can be used for many different purposes. This chapter discusses common use cases and their corresponding device presets, to help you use the hardware for your needs. Choose the Audio Interface preset to use the UltraLite AVB as a standard USB audio interface. Hardware inputs and outputs are accessible from your computer, and the mixer and audio networking features are disabled.
STAND-ALONE MIXER INTERFACE + MIXER Choose the Stand-alone mixer preset to use UltraLite AVB as a mixer. Doing so routes all physical inputs to the mixer, with the mixer’s main mix bus and monitor bus going to the Main Out and Line Out pairs. In addition, all inputs are fed to each Aux bus pair (1-2, 3-4, etc.), which are in turn routed to the line out pairs. This means that each aux bus can serve as its own independent monitor mix, with access to any/all inputs.
LIVE RECORDING WITH MONITOR MIXING Choose the Live recording with monitor mixing preset when you are tracking in the studio. The setup is pretty much the same as for the “Interface + mixer” preset shown in Figure 5-3 on page 46. All physical inputs on the interface are routed to both the computer (for recording) and the Main Mix and Monitor busses in the mixer (for nearzero latency monitoring). USB channels from the computer are included in the UltraLite AVB’s mix.
STUDIO INPUT EXPANDER OPTICAL CONVERTER Use the Studio Input Expander preset when you already have a main system set up, but you want to add additional inputs. This preset routes all physical inputs (analog and digital) on the UltraLite AVB to AVB network streams. You can connect to the UltraLite AVB’s network streams in the AVB Stream Connections section of the Device tab of the main MOTU AVB interface (item #19 on page 13).
The Front Panel LCD CHAPTER 6 OVERVIEW PUSH-BUTTON KNOBS The front panel LCD displays level meters for all analog inputs and outputs and activity indicators for MIDI and optical I/O. The LCD also provides several navigable menus that provide status information and basic hardware settings. The front-panel knobs (Figure 6-2) are pushbutton digital rotary encoders. Push the knob for the function labeled in blue. Level meters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Main Menu Turn the SELECT knob to scroll through the menu settings. Push SELECT to enter the selected sub-menu or to select the currently highlighted parameter. Settings menu The Settings menu provides access to basic hardware settings, such as Clock Mode, Sample Rate, and so on. Setting What it does Clock Mode Sets the digital audio clock source for the device. Sample Rate Sets the sample rate for the device. Optical Specifies ADAT or TOSLink, or the SMUX format when operating at 88.2 or 96 kHz.
CHAPTER 7 Working with Host Audio Software OVERVIEW RUN THE WEB APP The UltraLite AVB provides multi-channel audio input and output for Core Audio compatible audio applications on the Mac and ASIO or Wave compatible applications on Windows, including MOTU’s Digital Performer and AudioDesk, Apple’s Logic Pro and GarageBand, and other third-party software applications such as Ableton Live, Avid Pro Tools, Cockos Reaper, Propellerhead Reason and Record, Steinberg Cubase and Nuendo, Cakewalk SONAR, PreSonus
Specifying the number of computer channels In the web app Device tab (page 13), in the Computer Setup section, specify the number of computer channels for streaming audio to and from your host audio software. You might want enough channels to cover the following: ■ Physical inputs you want to record on your computer. The physical outputs you want to send audio playback to. ■ ■ Any audio streams going to and from the on-board mixer in your MOTU device.
Naming computer input and output channels Click on any computer input or output name in the routing grid (Figure 7-1) to change its name. computer channel row. Now, the mix bus output will be routed to the computer via the channel you selected. Streaming computer audio to and from the on-board mixer In Figure 7-1, you’ll see mixer inputs across the top of the grid (Main, Monitor, Aux, etc.) These are output busses from the UltraLite AVB’s on-board mixer.
Working with AVB network streams Audio channels going to networked AVB interfaces can be streamed to and from your host audio software through the UltraLite AVB connected directly to the computer. For information about how to set this up, see “Mapping computer channels to network streams” on page 69. Mirroring computer channels to multiple outputs Figure 7-1 shows an example of mirroring one stereo audio stream from host audio software to several outputs.
REDUCING MONITORING LATENCY Monitoring latency is a slight delay caused by running an input signal through your host audio software and back out. For example, you might hear it when you drive a live guitar input signal through an amp modeling plug-in running in your audio sequencer.
playback is extremely precise, it is only the monitoring of your live input signal which may be delayed. Adjusting your host software audio buffer Buffers are small bundles of audio data. The UltraLite AVB “speaks” to your computer in buffers, rather than one sample at a time. The size of these buffers determine how much delay you hear when monitoring live inputs through your audio software: larger buffers produce more delay; smaller buffers produce less.
■ Responsiveness of transport controls and effect knobs in AudioDesk, Digital Performer or other audio software. ■ Real-time virtual instrument latency. The buffer setting presents you with a trade-off between the processing power of your computer and the delay of live audio as it is being patched through your software.
WORKING WITH HOST AUDIO SOFTWARE
CHAPTER 8 Mixer Effects OVERVIEW Leveler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62 This chapter provides further information about the effects processors available in the DSP mixer in the UltraLite AVB. For basic mixer operation, see: The Leveler™, an accurate model of the legendary LA-2A optical compressor, which provides vintage, musical automatic gain control Mixing tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GATE All input channel strips provide a Gate module. Enabling EQ Each band has an enable/disable button (Figure 8-3), allowing you to enable as few or as many bands as needed for the channel strip. Figure 8-2: The Gate module. The gate silences the signal when the input signal’s level drops below the Threshold. Enable/disable The rate at which the gate responds, (opens to let signal through) is determined by the Attack parameter.
be flexible enough to cover a broad range of applications. By adjusting Gain and Bandwidth together, you can emulate the smooth and musical character of classic analog EQ circuits, in which the Gain/Bandwidth dependency was dictated by the actual circuit design and electrical components used. Low and high shelf filters The Low and High bands offer a shelf option that is similar to those found in most conventional parametric EQs. COMPRESSOR All mixer input channel strips provide a compressor module.
LEVELER The Leveler™ (Figure 8-5) provides an accurate model of the legendary Teletronix™ LA-2A® optical compressor, known for its unique and highly sought-after Automatic Gain Control (AGC) characteristics. Figure 8-5: The Leveler module. The Leveler is available on the Main Mix bus and all Group busses, including the Reverb bus. A model of an optical compressor An optical leveling amplifier works by shining a light on a photoresistor.
Enabling or disabling the Leveler The Leveler models the LA-2A so closely, it also models the time it takes for an actual LA-2A to “warm up” after it is turned on. Therefore, when you enable the Leveler, give it a moment to “settle” before you begin processing signals with it. Gain Reduction Gain Reduction (Figure 8-5) sets the strength of the signal sent to the AGC model. Makeup Gain Makeup gain (Figure 8-5) amplifies the output signal to make up for gain reduction.
setting represents the bottom frequency of the Mid band. The Ratio determines the length for each band specified in a percentage of the low frequency reverb time. DSP USAGE The DSP Usage meter (item #26 on page 17) shows how much of the available DSP processing power is currently being used by the mixer for the mix and for effects processing. If there aren’t enough DSP resources for all effects to be enabled on a channel, effects are disabled for that channel and all subsequent channels.
CHAPTER 9 Networking OVERVIEW The Audio Video Bridging (AVB) network port on the UltraLite AVB opens up a world of possibilities for creating expanded, customized audio network systems. About AVB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MOTU’s AVB implementation . . . . . . . . . . . . . . . . . . . . . . . . Networking examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A quick guide to networking . . . . . . . . . . . . . . . . . . . . . .
■ AVB is already shipping on current Macs — Apple supports AVB on all current shipping Macs, and the UltraLite AVB can operate as a standard AVB audio interface when connected to your Mac’s AVB-equipped Ethernet port. MOTU’S AVB IMPLEMENTATION MOTU engineering has faithfully implemented the IEEE 802.1 AVB standard for the MOTU AVB products. This means that MOTU devices are fully interoperable with any 3rd party AVB-compatible device.
computer system. Despite the distance, the two interfaces operate as a seamless system, controlled from your computer or iPad. can stream audio anywhere on the network with near-zero latency, as if any two devices were connected directly to each other. Studio installation A studio installation of three to five interfaces can be handled with a single MOTU AVB Switch. See “Setup for three to five interfaces” on page 33.
millisecond latency through as many as seven switches. Audio can be distributed from a centralized location to anywhere in the venue. A QUICK GUIDE TO NETWORKING MOTU AVB networking has been designed to be powerful, yet straightforward to set up and use. Here are a few things that are useful to know. ■ Expand the network by adding more switches. Make a single connection from one switch to the other. On MOTU AVB Switches, use their AVB NETWORK ports, NOT the Ethernet port.
■ All computers and interfaces on the network have full access to each other. ■ MOTU employs a 1 Gbit AVB implementation in the MOTU AVB Switch. The switch allows routing of many audio channels on the network. SETTING UP A MOTU AVB INTERFACE FOR NETWORKING Input streams (coming from the rest of the network) are listed across the top of the routing grid.
■ Any other standard networking device THE MOTU AVB SWITCH The heart of a MOTU AVB network is the MOTU AVB Switch (sold separately). For a brief overview of the switch and its features, visit: www.motu.com/products/avb/avb-switch.
Part 3 Appendices
APPENDIX A Troubleshooting Some or all of my MOTU interface inputs and outputs are not available in my host audio software. Make sure that the inputs and outputs are enabled in the Device tab (“Device tab” on page 12) and routed to and from the computer in the Routing tab (“Routing tab” on page 14). For details, see “Making inputs and outputs available to your host software” on page 52. I have absolutely no audio input or output happening to or from my interface.
Connecting or powering gear during operation... It is not recommended that you connect/ disconnect, or power on/off devices connected to the UltraLite AVB while recording or playing back audio. Doing so may cause a brief glitch in the audio. CUSTOMER SUPPORT We are happy to provide complimentary customer support to our registered users. If you haven’t already done so, please take a moment to register online at MOTU.com, or fill out and mail the included registration card.
APPENDIX B Audio Specifications Line Out Connector Type 1/4” Female, TRS Balanced, tip hot Output Impedance 100 ohm Per leg Dynamic Range 117 dB A-weighted THD+N -101 dB -1 dBFS, Unweighted, 1 kHz Frequency Response +0, -0.1 dB, 20 Hz/20 kHz Ref.
Phones Connector Type 1/4” Female, TRS Stereo Tip Left, Ring Right Dynamic Range 112 dB A-Weighted THD+N -94 dB Unweighted Frequency Response +0 -0.15 dB, 22 Hz/20 kHz Ref. 1 kHz Drive Max.
APPENDIX C Mixer Schematics MONO INPUT CHANNEL 77
STEREO INPUT CHANNEL + 78 APPENDIX C: MIXER SCHEMATICS
GROUP BUS + 79 APPENDIX C: MIXER SCHEMATICS
MONITOR BUS + 80 APPENDIX C: MIXER SCHEMATICS
APPENDIX D Updating Firmware MOTU periodically posts firmware updates for the UltraLite AVB. These updates may include bug fixes, enhancements, and new features. Updates are posted on MOTU’s servers. If your computer or Wi-Fi device has access to the internet, the MOTU AVB Control app notifies you as soon as an update is made available. Otherwise, you can check motu.com/avb periodically for the latest firmware update.
Updating off-line, without internet access If the UltraLite AVB (and the computer it is connected to) has no internet access, you can download a firmware update file from another computer that does have internet, and then use the file to update the UltraLite AVB, as follows: 1 Download the firmware file. 2 Transfer the file to a computer with a network cable connection to the UltraLite AVB. 3 Launch the MOTU AVB Control web app on the computer, as usual. 4 Go to the Device tab.
APPENDIX E OSC Support Open Sound Control (OSC) is a protocol for communication among computers and other multimedia devices that is optimized for modern networking technology. MOTU AVB audio interfaces support OSC, which provides remote control of all device settings and mixer controls from any OSC-enabled controller. For further details about remote control through OSC, along with complete documentation for the MOTU AVB OSC API, visit: http://www.motu.
APPENDIX E: OSC SUPPORT
Index 24-bit optical 10 2x SMUX mode 13, 39 A Ableton Live 51, 54 ADAT optical 10 connecting 39 settings 13 Analog inputs/outputs 39 making connections to 39 Apple Garage Band 54 Logic Pro 54 ASIO Buffer Size 28 ASIO monitoring 55 Attack Compressor 60, 61 Audio MIDI Setup utility 29 Audio interface preset 7, 45 AudioDesk 23, 30, 51, 54 Aux Mix Target 16 Aux Mixing tab 16 AVB audio interface operation 21 Discovery app 7, 28 Ethernet explained 65 Input/Output Banks 13 networking 65-70 overview 65 Stream Conn
accessing 15 aux bus 19 connecting 38 effects 59 group bus 20 input channel strip 17 main mix channel strip 18 Monitor channel strip 18 overview 15 Reverb bus 20 schematics 77 Setup 13 stand-alone operation 59 Mixing tab 15 MOTU AudioDesk 54 AVB Control web app 7, 11-20 Aux Mixing tab 16 Device tab 12, 13 Mixing tab 15 Routing tab 14 AVB Discovery app 7, 28 AVB Installer 7, 27 AVB Switch setup 33, 37 Digital Performer 54 MOTU AVB Control web app 11 Discovery app 11 Installer 11 USB ASIO driver 54 WebUI Setu