Monitor 8 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 MONITOR 8 and MOTU AVB SWITCH (“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 Monitor 8 Front Panel 10 Monitor 8 Rear Panel 11 MOTU AVB Switch 13 MOTU AVB Control Web App 23 About the Monitor 8 27 Packing List and System Requirements 29 Software Installation 31 Hardware Installation Part 2: Using your MOTU interface 43 Presets 47 The Front Panel LCD 49 Working with Host Audio Software 57 Mixer Effects 63 Networking Part 3: Appendices 71 Troubleshooting 73 Audio Specifications 75 Mixer Schematics
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 a MOTU AVB interface! Follow these easy steps to get started quickly. 1 Download and run the MOTU AVB Installer: ■ For advanced network options, and device discovery from any modern browser, see chapter 9, “Networking” (page 63). 6 Choose a preset from the Quick Setup. http://www.motu.com/avb 2 (Optional) For quick access to your MOTU interface from your iPad or iPhone, download the MOTU AVB Discovery app from the Apple App Store.
Monitor 8 Front Panel 13 1 2 3 12 11 4 5 1. MAIN OUT volume control. This setting, along with all front panel settings, can also be adjusted from the MOTU Web App. 7. ANALOG INPUT METERS for the eight balanced (TRS) quarter-inch inputs on the rear panel. 2. AUX OUT volume control. 8. ADAT OPTICAL input metering. At 1x sample rates (44.1 or 48 kHz), there are sixteen channels of input. At 2x (88.2 or 96 kHz), there are eight channels. 3.
Monitor 8 Rear Panel 1 2 9 3 4 5 6 7 8 1. The Monitor 8 is equipped with an auto-switching international power supply. 2. These ADAT optical “lightpipe” jacks provide 16 channels of 24-bit ADAT optical digital input at 1x sample rates (44.1 or 48 kHz) or 8 channels at 2x sample rates (88.2 or 96 kHz). They are disabled at higher sample rates. Use them to route channels from another optical device, such as a mixer, to be included in each monitor group mix. 3.
MOTU AVB Switch 1 2 3 1. Use these 1 gigabit AVB NETWORK ports to connect any of the following: ■ MOTU AVB interfaces (1248, 8M, 16A, 24Ai, 24Ao) ■ Another MOTU AVB Switch (to extend the network) ■ A 3rd-party AVB switch ■ An Ethernet device, Wi-Fi router or Ethernet network ■ A third-party AVB device 2. This standard Ethernet port can be used to connect a standard 10/100/1Gb Ethernet device, Wi-Fi router or Ethernet network. DO NOT connect AVB devices to this port; it does not support AVB. 3.
MOTU AVB Control Web App CHAPTER OVERVIEW MOTU AVB Control is a web app that gives you complete control over your MOTU audio interface. If you have several MOTU AVB interfaces networked together, such as the Monitor 8 and 8M, you can control them all. If you are working with a large-scale network of many MOTU AVB interfaces, you can access and control any device on the network. MAKE HARDWARE AND NETWORK CONNECTIONS Connect your MOTU interface to your computer or laptop with a USB cable.
DEVICE TAB 6 7 8 9 10 11 5 12 4 3 2 13 14 15 1 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. 2. The Aux Mixing tab lets you view each Aux bus in the mixer, one at a time. 6. Expands and collapses the sidebar. 7. Lets you create, save, recall and manage presets for your MOTU AVB interface. These presets capture and recall the complete state of the device (all settings in all tabs). 8.
DEVICE TAB (CONTINUED) 20 19 18 21 24 23 22 Scroll down to view these additional Device tab settings. 18. In the Input/Output Banks sections, you can disable any banks that you are not using. Doing so hides them from the routing matrix and mixer to simplify operation. Doing so also helps conserve DSP resources. 19. AVB is IEEE’s Audio Video Bridging Ethernet standard for highbandwidth, low-latency audio streaming over Ethernet.
ROUTING TAB 4 5 6 7 8 10 9 3 11 2 12 13 1 20 14 19 18 17 15 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 30 18 29 28 19 20 27 21 26 22 23 24 25 The Mixing tab gives you full access to the 48-channel mixer in your MOTU AVB interface, 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 16) to route channels to the mixer inputs.
AUX MIXING TAB 3 4 5 6 7 8 9 10 2 1 16 11 15 12 14 13 The Aux Mixing tab provides quick access to your MOTU AVB interface’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 4 5 To access a mixer input channel strip, go to the Mixing tab (page 17), reveal the side bar (item #3 on page 17), and then show the input channel you want in the Mixer Inputs section (29). 26 6 7 3 25 3 8 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 mixer tab on page 17). 9 1. Click the input channel name to change it. Delete the current name to restore the default name. 2.
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 mixer tab (page 17) 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 mixer tab on page 17). 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 16). 4 9 To access an Aux bus channel strip, go to the mixer tab (page 17), reveal the side bar (item #3 on page 17), and then show the aux busses you want in the Mixer Outputs section (26). 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 mixer tab on page 17). 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 Monitor 8 Monitor 8 is a 24 x 16 x 8 monitor mixer, 6-channel headphone amplifier and USB/AVB audio interface with console-style 48-channel mixing and DSP effects. Monitor 8 can mix 24 inputs, multichannel computer audio, and dozens of AVB audio network channels to eight stereo busses: Main, Aux and monitor groups A thru F.
8M 50 simultaneous audio channels Connection Input Output Quarter-inch analog on bal/unbal TRS - 8 Mic/guitar inputs on combo XLR/TRS 8 - Headphone output - stereo ADAT optical digital (at 44.1 or 48 kHz) 16 16 Total 24 26 Connection Input Output Quarter-inch analog on bal/unbal TRS 16 16 ADAT optical digital (at 44.
and computers on the network with guaranteed Quality of Service (QoS), prioritizing audio streams over less important traffic. Matrix routing and multing Each MOTU interface provides completely flexible matrix-style audio routing and multing. You can route any analog or digital input, computer channel, or network stream to any other output, computer, or network device. You can also mult any single input to unlimited multiple output destinations.
ABOUT THE MONITOR 8
CHAPTER 2 Packing List and System Requirements PACKING LIST PLEASE REGISTER TODAY! Your MOTU interface 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 your MOTU interface today. There are two ways to register. ■ One audio interface ■ One USB cable ■ One power cord ■ One manual ■ Product registration card SYSTEM REQUIREMENTS ■ A 1 GHz Intel-based Mac.
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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Run the MOTU AVB Audio Installer . . . . . . . . . . . . . . . . . . MOTU AVB Discovery app . . . . . . . . . . . . . . . . . . . . . . . . . . . AudioDesk workstation software . . . . . . . . . . . . . . . . . . . . 29 29 29 30 30 30 USB 2.
Run the software installer before connecting your MOTU interface to your computer If you wish to proceed with software installation, we recommend that you run the software installer before you connect your MOTU interface to your computer and power it on. This ensures that all driver components are properly installed in your system.
CHAPTER 4 Hardware Installation OVERVIEW Rack installation and heat . . . . . . . . . . . . . . . . . . . . . . . . . . . USB audio interface setup . . . . . . . . . . . . . . . . . . . . . . . . . . . Setup for two interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Setup for three to five interfaces. . . . . . . . . . . . . . . . . . . . . Setup for a multi-switch network . . . . . . . . . . . . . . . . . . . . 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 and 16A. Use this setup if you want to use your MOTU device as an AVB Ethernet audio interface. ■ Use a standard CAT-5e or CAT-6 cable. ■ Connect to the computer’s Ethernet port. ■ See “Operation as an AVB Ethernet audio interface” on page 29. ■ No driver installation is necessary.
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.
models. For example, you could connect a 1248 through Thunderbolt and another MOTU audio interface, such as a Monitor 8, through USB 2.0. SETUP FOR WEB APP CONTROL The MOTU AVB Control web app gives you access to all settings, routing, mixing, and effects processing in your audio interface, and each interface on the AVB network, if applicable. For more info, see “MOTU AVB Control Web App” on page 13. The web app is a web application served by the hardware.
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 your MOTU interface from multiple Wi-Fi devices simultaneously.
A TYPICAL MONITOR 8 SETUP Monitor 8 itself, controlled from your laptop, tablet, and smart phone — or several devices simultaneously. Here is a typical Monitor 8 setup. This rig can be operated with or without a separate mixer.
AUDIO CONNECTIONS Here are a few things to keep in mind as you are making audio connections to your Monitor 8 interface. Analog trims All quarter-inch analog inputs and outputs can be trimmed. This allows them to support a variety of standards, including EBU-R68, SMPTE RP-155, +4dBu, -10dBV, 2vRMS, 1vRMS.
this case, audio cannot be streamed between MOTU AVB devices that don’t share the same master clock. Resolving the master clock device to an external clock source The MOTU device you’ve specified as the AVB network clock master can itself be resolved to an external time base such as word clock (if available) or ADAT optical. Just choose the desired clock source from its Clock Mode menu (in the Device tab). Doing so effectively resolves the entire AVB network to the external clock source.
Part 2 Using your MOTU interface
CHAPTER 5 Presets OVERVIEW AUDIO INTERFACE Because of its advanced, extensive feature set, your MOTU AVB interface 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 Monitor 8 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 Monitor 8 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 Aux 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 six monitor groups A-F. 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 44. 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). Eight USB channels from the computer are included in the Monitor 8’s mix.
STUDIO INPUT EXPANDER 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 Monitor 8 to AVB network streams. You can connect to the Monitor 8’s network streams in the AVB Stream Connections section of the Device tab of the main MOTU AVB interface (item #20 on page 14).
CHAPTER 6 The Front Panel LCD OVERVIEW The front panel LCD displays level meters for all inputs and outputs. The LCD also provides several navigable menus that provide status information and basic hardware settings. Figure 6-2: Push the knob to activate the functions labeled in blue. Level meters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Push-button Knobs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Channel focus . . . . . . . . . . . . . . .
To exit the menu entirely, push BACK repeatedly until the menu disappears from the display. Device menu The Device menu provides information about the device, such as its name and connection mode (USB or AVB). Network menu The Network menu displays the following network-related information: Setting Explanation Serial/UID Unique AVB network identifier that can be used for troubleshooting. IP address The unique network address for the unit.
CHAPTER 7 Working with Host Audio Software OVERVIEW RUN THE WEB APP Your MOTU interface provides multi-channel audio input and output for Core Audio compatible audio applications, 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, PreSonus Studio One, Bitwig, and others.
Specifying the number of computer channels In the web app Device tab (page 15), 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.
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 your interface’s on-board mixer. To route one of these mix busses to your host computer software, click the grid at the intersection of the mix column and desired computer channel row. Now, the mix bus output will be routed to the computer via the channel you selected.
Working with AVB network streams Audio channels going to networked AVB interfaces can be streamed to and from your host audio software through the MOTU interface connected directly to the computer. For information about how to set this up, see “Mapping computer channels to network streams” on page 67. 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.
Reaper Open the Preferences window and click Devices under the Audio preferences. Choose Monitor 8 (or other MOTU interface model) from the Audio Device menu. Other audio software Consult your software’s manual for further information. REDUCING MONITORING LATENCY Monitoring latency is a slight delay caused by running an input signal through your host audio software and back out.
Monitoring through your host audio software If you do need to process a live input with host software plug-ins, or if you are playing virtual instruments live through your MOTU audio hardware, you can significantly reduce latency by adjusting the audio buffer setting in your host audio software, as explained in the next section. ☛ It is important to note that monitoring delay has no effect on the recording, or playback, of audio data from disk.
Figure 7-6: When adjusting the buffer size to reduce monitoring latency, watch the ‘processor’ meter in Digital Performer or AudioDesk’s Performance Monitor. If you hear distortion, or if the Performance meter is peaking, try raising the buffer size. Figure 7-5: In Logic Pro, go to the Audio Driver preferences to access the Buffer Size option shown above.
WORKING WITH ON-BOARD MIXING AND EFFECTS Your MOTU interface provides powerful mixing, EQ, compression and reverb, which can operate hand-in-hand with your host’s mixing environment. For example, your MOTU interface can serve as a monitor mixer, routing channels to musicians, or it can serve as an integrated extension of your host’s mixing environment. You can even save a particular mixing configuration as a preset for future recall. For details, see “Mixing tab” on page 17.
CHAPTER 8 Mixer Effects OVERVIEW Leveler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 This chapter provides further information about the effects processors available in the DSP mixer in your MOTU AVB interface. For basic mixer operation, see: The Leveler™, an accurate model of the legendary LA-2A optical compressor, which provides vintage, musical automatic gain control Reverb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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 19) 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 your MOTU interface 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 your MOTU AVB interface 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.
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. Networking is ideal for studio installation because you can position interfaces at strategic locations. Running cables becomes much simpler and more cost effective.
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. ■ You can daisy-chain switches in serial fashion, but don’t create loops. For example, in the network below, do not make any additional connections between any two switches. Networking basics ■ Before proceeding below, review the networking connection diagrams on pages 32-34.
SETTING UP A MOTU AVB INTERFACE FOR NETWORKING Depending on the model, MOTU AVB interfaces have the ability to broadcast up to sixteen 8-channel streams to the rest of the network. Conversely, it can “listen” to as many as sixteen 8-channel streams from anywhere else in the network. For each device on the network, set it up for network operation as follows: 1 In the MOTU AVB Control web app, choose the device (item #1 on page 14).
NETWORKING
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 14) and routed to and from the computer in the Routing tab (“Routing tab” on page 16). For details, see “Making inputs and outputs available to your host software” on page 50. 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 your MOTU interface 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 XLR 1/4” Female, TS Balanced, tip hot Pin 2 hot Summed mono Output Impedance 100 ohm Per leg Dynamic Range 123 dB A-weighted THD+N -110 dB (0.0003%) -1 dBFS, Unweighted, 1 kHz Frequency Response +0, -0.1 dB, 20 Hz/20 kHz Ref.
APPENDIX B: AUDIO SPECIFICATIONS
APPENDIX C Mixer Schematics MONO INPUT CHANNEL 75
STEREO INPUT CHANNEL + 76 APPENDIX C: MIXER SCHEMATICS
GROUP BUS + 77 APPENDIX C: MIXER SCHEMATICS
MONITOR BUS + 78 APPENDIX C: MIXER SCHEMATICS
APPENDIX D Updating Firmware MOTU periodically posts firmware updates for your MOTU AVB interface. 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 your MOTU AVB interface (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 your MOTU interface, as follows: 1 Download the firmware file. 2 Transfer the file to a computer with a network cable connection to your MOTU interface. 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
24-bit optical 10 A Ableton Live 49 ADAT optical 10 SMUX Type 48 Analog inputs/outputs 39 Apple Garage Band 52 ASIO monitoring 53 Attack Compressor 58, 59 Audio interface preset 7, 43 AudioDesk 25, 30, 49, 52 authenticating 71 Aux Mix Target 18 Aux Mixing tab 18 AVB Discovery app 7, 30 Ethernet explained 63 Input/Output Banks 15 networking 63-67 overview 63 Stream Connections 15 Stream Setup 15 streams (Routing tab) 16 Switch setup 33, 37 AVB Control web app 7, 13-22 Aux Mixing tab 18 Device tab 14, 15 Mix
N Networking 63-67 Q Q 58 installation 33, 34 MOTU AVB Switch 11 Nuendo 49 clock source 49 Mac OS X 52 sample rate 49 Quick Setup window 7 QuickStart Guide 7 O Optical 2x mode 48 connectors 10 Optical converter mode 48 Optical Converter preset 7, 46 Optical converter preset setup/example 46 Optical converter with mixing preset 46 Optimization 55 OS X audio software clock source 49 sample rate 49 OSC support 81 Output banks 15 Output settings 14 Outputs optical 10 P Packing list 27 Patch thru latency 55