User Manual
Table Of Contents
- Title Page
- Quick Start Guide
- LP32 Front Panel
- LP32 Rear Panel
- MOTU Pro Audio Control Web App
- Overview
- It’s not on your hard drive
- Use your favorite web browser
- Control from multiple devices
- Run the installer, get the app
- Make hardware and network connections
- Launching the web app
- Device tab
- Device tab (continued)
- Device tab (continued)
- Routing tab
- Mixing tab
- Aux Mixing tab
- Mixer input channel strips
- Main Mix and Monitor channel strips
- Aux bus channel strips
- Group and Reverb channel strips
- 1 About the LP32
- Comprehensive I/O
- Flexible optical I/O
- Network I/O
- Other MOTU AVB interfaces
- Universal computer connectivity
- On-board DSP with mixing and effects
- 32-bit floating point processing
- Modeled vintage effects processing
- AVB/TSN system expansion and audio networking
- Matrix routing and multing
- Web app control
- Stand-alone mixing with wireless control
- Comprehensive metering
- Headphone output
- Rack mount or desktop operation
- Audio analysis tools
- AudioDesk
- 2 Packing List and System Requirements
- 3 Software Installation
- 4 Hardware Installation
- Overview
- USB or iOS audio interface setup
- AVB Ethernet audio interface setup
- Setup for two interfaces
- Setup for three to five interfaces
- Setup for a multi-switch network
- Setup for multiple interfaces
- Setup for web app control
- Setup for AVB Ethernet audio interface operation
- Audio connections
- Synchronization
- Syncing optical devices
- Syncing word clock devices
- Syncing an AVB network
- Syncing multiple AVB audio interfaces connected to a Mac
- 5 Presets
- 6 The Front Panel LCD
- 7 Working with Host Audio Software
- Overview
- Preparation
- Run the web app
- Choose the MOTU Pro Audio driver
- Reducing monitoring latency
- Monitoring through the LP32
- Direct hardware playthrough / Direct ASIO monitoring
- Monitoring through your host audio software
- Adjusting your host software audio buffer
- Adjusting buffer size on Mac OS X
- Adjusting buffer size on Windows
- Lower latency versus higher CPU overhead
- Transport responsiveness
- Effects processing and automated mixing
- Working with the Routing grid
- Enabling and disabling input/output banks
- Specifying the number of computer channels
- Making inputs and outputs available to your host software
- Configuration presets
- Naming computer input and output channels
- Streaming computer audio to and from the onboard mixer
- Working with AVB network streams
- Mirroring computer channels to multiple outputs
- Combining multiple sources to one output
- Routing grid tutorials
- Working with on-board mixing and effects
- 8 Mixer Effects
- 9 MOTU Audio Tools
- 10 Networking
- A Troubleshooting
- B Audio Specifications
- C Mixer Schematics
- D Updating Firmware
- E OSC Support
- Index
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MOTU AUDIO TOOLS
73
View controls
You can show and hide the FFT display and
spectrogram as desired using the View controls
(Figure 9-5).
Figure 9-5: FFT view controls.
View menu
This menu provides various options for displaying
the two input channels.
Logarithmic or Linear X-Axis Scale
The x-axis defaults to a logarithmic scale, but it can
be changed to a linear scale if desired. In the View
controls (Figure 9-5), click Logarithmic to access
the x-axis scale options menu. With a linear scale
selected, frequency is constant, but the width of
each octave along the x-axis is different. With a
logarithmic scale selected, octaves are displayed
with a constant width, but frequency is displayed
logarithmically within each octave.
Axes display
The Axes control (Figure 9-5) sets the opacity of
the grid displayed in the graph, from 100% (fully
visible) down to 0% (fully hidden).
Pausing the display
The Pause button in the upper right corner of the
View section (Figure 9-5) allows you to freeze the
display at any time. To resume, click the button
again.
Horizontal controls (frequency axis)
The Horizontal controls (Figure 9-6) configure the
value range of the x-axis (frequency). Click and
drag the values up or down to set them, or double-
click to return to the default value.
Figure 9-6: The Horizontal controls.
There are two modes for the controls: Zoom/Offset
and Min/Max. To change the mode, use the
Horizontal control menu (Figure 9-6).
In Zoom/Offset mode, Zoom sets the display zoom
from 1x to 100x, where the number represents the
zoom factor relative to the entire frequency range.
For example, when the horizontal zoom value is 1x,
the entire frequency range from 10 to 24000 Hertz
is displayed; when the horizontal zoom value is 2x,
one half of the entire frequency range is displayed.
Pos determines which frequency is displayed at the
center of the graph.
In Min/Max mode, Min and Max set the lowest and
highest displayed frequencies (in Hertz).
Vertical controls (amplitude axis)
The Ve r t i c al controls (Figure 9-7) operate similarly
to the Horizontal controls, except that they
configure the y-axis (amplitude).
View menu setting What it does
Left Displays the left channel only.
Right Displays the right channel only.
Split Screen H Shows both channels side by side, with the
screen split horizontally.
Split Screen V Shows both channels side by side, with the
screen split vertically.
Shared Displays both FFTs (left is green and right is
red), and the spectrogram waterfall shows
the maximum level of either the left or right
channel (whichever is greater).
Max The FFT and spectrogram shows the maxi-
mum level of either the left or right channel.
Subtract L - R Subtracts the right channel from the left
channel and displays the results.
Pause button
Display options
View menu
Horizontal controls menu