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
MIXER EFFECTS
64
GATE
All input channel strips provide a Gate module.
Figure 8-2: The Gate module.
The gate silences the signal when the input signal’s
level drops below the Threshold.
The rate at which the gate responds, (opens to let
signal through) is determined by the Attack
parameter. With a short Attack time, the gate will
open as soon as the signal crosses the Threshold;
with longer Attack times, the gate will gradually
open, much like a fade-in.
When the input level falls back below the
Threshold, the time it takes for the gate to close
(how quickly the signal is attenuated), is
determined by the Release parameter. Short
Release times will close the gate quickly, abruptly
attenuating your signal, versus longer release times,
which will gradually attenuate your signal, like a
natural fade-out.
FOUR-BAND PARAMETRIC EQ
All mixer channel strips, (except for the Monitor
bus), provide modeled, four-band parametric EQ.
Vintage EQ
Inspired by legendary British large console EQs,
the EQ section (Figure 8-3) models the sound of the
most sought-after classic equalizers. Four bands of
center frequency parametric EQ filtering are
provided, each with a bandwidth control. The
High and Low bands include a shelf filtering
option. With 32-bit floating point precision, the
vintage EQ has been carefully crafted and
meticulously engineered to produce musical
results in a wide variety of applications.
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 8-3: The Four-band parametric EQ module.
EQ filter controls
The EQ filters have three controls:
Double-click a knob to return to its default
position.
EQ filter characteristics
EQ is one of the most widely used processing tools
and can be applied to many different situations,
from minor corrective tasks to creative tone
Control unit range
Gain dB -20.00 to +20.00
Frequency Hertz 20 to 20,000
Bandwidth Octaves 0.01 to 3.00
Enable/disable