User's Manual

Table Of Contents
Apollo Solo USB Manual Using UAD Plug-Ins 205
DSP Loading Notes
UAD devices feature either one, two, four, or eight (SOLO, DUO, QUAD, or OCTO)
on-board DSP cores for UAD plug-in processing. Apollo Solo USB features UAD-2
SOLO core processing.
UAD DSP use is proportional to the sample rate. Twice as many UAD plug-ins can
be used at a 48 kHz sample rate versus a 96 kHz sample rate, and so forth.
UAD plug-ins within Console can only run on Apollo Solo USB’s built-in DSP. If
a UAD-2 DSP accelerator is added to the system (such as UAD-2 Satellite), the
additional DSP can be used for UAD plug-ins within a DAW, but not for Realtime
UAD Processing within Console.
Bypassing individual components within some UAD plug-ins can conserve UAD
resources. For example, bypassing the compressor in the Precision Channel
Strip when only the EQ is in use, and/or bypassing any of the unused bands of
the Precision Channel Strip EQ will use less UAD DSP (unless DSP LoadLock is
enabled).
The UAD Instance Chart at help.uaudio.com lists the amount of DSP used by each
UAD plug-in. The chart can help determine which UAD plug-ins to use within
available UAD resources.
Specific UAD plug-ins have the ability to conserve UAD resources when individual
features within the plug-in are inactive. These plug-ins are marked with an
asterisk (*) in the UAD Instance Chart at help.uaudio.com. Note that DSP
LoadLock must disabled to take advantage of this feature.
Apollo Solo USB uses UAD DSP and memory for its internal digital mixer and
Input Delay Compensation engine. Therefore, the UAD Meter gauges will indicate
loads (when UAD hardware is connected) even if UAD plug-ins are not inserted in
Console or the DAW.
The host computer system memory and CPU are never used for UAD plug-in
processing within a DAW. However, there will be a small additional load on
the host CPU induced by data transfers and user interface operations. This is
unavoidable when using any DSP device.
When LiveTrack Mode is active, host CPU load is increased.
Within a DAW, UAD plug-ins can run at the same time as native (host CPU based)
plug-ins, and in any combination. However, native plug-ins cannot be loaded
within Console.