User's Manual
Table Of Contents
- A Letter from Bill Putnam Jr.
- Introducing Apollo Solo USB
- Getting Started
- Hardware Controls & Connectors
- Apollo Solo USB System Overview
- Working With Apollo Solo USB
- Essential Apollo Solo USB Concepts
- Setting the DAW to use Apollo Solo USB I/O
- Accessing Apollo Solo USB’s I/O in the DAW
- Input Monitoring with the DAW
- Using Console with the DAW
- UAD Plug-Ins: Console versus DAW
- Virtual I/O
- Using Apollo Solo USB for System Sound I/O
- Using Apollo Solo USB Without Audio Software
- Console Overview
- What is Console?
- Console Functions
- Global Functions
- When To Use Console
- Interactions Between Console and Apollo Solo USB
- Accessing Console
- Console Layout
- Global Window Elements
- Meter Bridge Overview
- Info Bar Overview
- Current Bank Overview
- View Column Overview
- Monitor Column Overview
- Channel Strips Overview
- Console Plug-In Inserts Overview
- Insert Effects Overview
- Popover Windows
- HP Cue Overview
- Sends Overview
- Console Sessions Overview
- Console Settings Overview
- Multiple Undo/Redo
- Keyboard Focus & Control
- Adjusting Console Controls
- Controls Shortcuts
- Keyboard Shortcuts
- Console Reference
- Console Plug-In Inserts
- Insert Types
- Inserts Signal Flow
- Inserting UAD Plug-Ins
- Removing UAD Plug-Ins
- Editing UAD Plug-Ins
- Insert Assign Popover
- Inserts Display
- Insert State Indicators
- Insert Hover Options
- Insert Options Menu
- Channel Insert Effects
- Plug-In Editor Window
- Channel Strips
- Presets Manager
- Presets Manager Popover
- Save Preset Popover
- Console Settings
- Unison
- Console Recall Plug-In
- UAD Meter & Control Panel
- Using UAD Plug-Ins
- Tempo Sync
- UA Account & Store
- Latency & Apollo Solo USB
- Device Drivers
- Troubleshooting
- Glossary
- Specifications
- Hardware Block Diagram
- Universal Audio History
- Notices
- Technical Support
Apollo Solo USB Manual Latency & Apollo Solo USB 219
Latency & Apollo Solo USB
Delay Compensation with Apollo Solo USB
System latency encapsulates all latencies induced within the typical digital audio
workstation environment. See Latency Basics for a detailed overview of where, when, and
how latency (delay) is induced in the DAW environment.
Note: Upsampling latency, input latency, and all other system latencies
are automatically compensated by Console and modern DAWs when delay
compensation is enabled in the host application.
Driver Reporting
Any system latency that is induced by Apollo Solo USB’s I/O, Console, and/or UAD plug-
ins is reported by Apollo Solo USB’s device drivers to the host audio software that is
using the device.
The host software (e.g., Console and the DAW) uses this reported device latency for
its automatic delay compensation (ADC) engine. When ADC is enabled in Console and
the DAW, phase coherency (time alignment) is maintained throughout the recording,
overdubbing, and mixing process.
Upsampled UAD Plug-Ins
Some UAD plug-ins are upsampled, meaning their internal sample rate is increased
to achieve sonic design goals. Depending on the session sample rate, upsampled UAD
plug-ins can add additional latency when used in the Console Mixer and/or a DAW.
Although the latency added by upsampled UAD plug-ins is negligible (typically between
0-300 samples, depending on the plug-in and sample rate), this extra latency can affect
phase coherency in a session. However, phase alignment is managed automatically by
Input Delay Compensation in Console and Automatic Delay Compensation in the DAW
when these features are enabled.
Note: Specific upsampling latency values for UAD plug-ins are listed in the UAD
Plug-Ins Manual.
Automatic Delay Compensation in the DAW
Generally speaking, ADC should always remain enabled in the DAW when using Apollo
Solo USB (and any other audio interface), regardless of whether or not Console is used
at the same time. The DAW’s ADC engine performs all necessary housekeeping to keep
tracks phase-aligned, regardless of the latency source (if any).