Source Audio ATLAS COMPRESSOR SA 252, User Manual, Page: 26 / 31

SA252 Atlas Compressor User Guide 26
MIDI
Using a Neuro Hub connected to the pedal’s Control Input or a USB connection, the Atlas can be
controlled by generic MIDI Continuous Controller (CC) and Program Change (PC) messages. Many of
the Atlas’s parameters (even those that are not assigned to a control knob) are directly accessible via
MIDI continuous controller messages.
MIDI Channel
By default, the Atlas responds to MIDI Channel 1. The Atlas ignores all MIDI messages sent to it that
are not on its channel. The input MIDI channel for the Atlas can be changed in the Hardware Options
menu of the Neuro Editors. Note that the MIDI Input Channel is a
global setting that is NOT saved per
preset. Note that some manufacturers begin counting MIDI channels at zero (from 0 to 15), while the
Source Audio Neuro Editors use the convention of counting from 1 to 16.
Selecting Presets via Program Change (PC) Messages
The 128 user presets on the Atlas can be recalled via program change messages. Presets 1 to 128 are
mapped to MIDI Program Change messages 1 to 128.
It is possible to save presets with the Atlas bypassed.
Many of the parameters in the Atlas can be controlled via MIDI. For more details, see MIDI
Implementation .
Controlling the Atlas with MIDI Continuous Controller (CC) Messages
The Atlas responds to MIDI Continuous Controller (CC) messages, shown below. The pedal comes
already mapped to a default set of CC numbers. For a complete list of default MIDI mappings and
ranges, connect the Atlas to the Neuro Desktop Editor via USB, select the Atlas as a Device by clicking
inside the blue box in the left margin, then go to Device > Edit Device MIDI Map.
Custom CC Mapping
The default MIDI map provides control over parameters using specific Continuous Controller
messages. It is also possible to override the default map and create a custom mapping. Custom MIDI
CC mappings are global, meaning they are not unique per preset. The CC mapping will apply in all
situations, regardless of which preset is active.
To create a custom MIDI CC mapping, follow these steps:
•
Connect your Atlas to the Neuro Desktop Editor.
•
Select the Atlas as a device by clicking inside the blue box in the left margin.