UAD‑2 Live Rack Manual
Chapter 5: UAD Meter & Control Panel
130
There are many variables that affect DSP load (sample rate, parameter values, mono/
stereo, automation, host system performance, etc). Although these variables are taken
into account, the resulting measurement cannot be absolutely accurate due to variations
in system configurations, including computer bus loading, which is impossible to
measure.
Systems that are heavily loaded due to the presence of other devices or suboptimal
configurations may cause additional DSP loading that cannot be measured by the UAD
plug‑in load calculator. The DSP load limit should be reduced in this case.
It is possible for certain (atypical) conditions to be met where another UAD plug‑in can’t
be added, even when the UAD Meter says you should have DSP available when compared
to the DSP Load Limit value.
Note: When Limit DSP Load is enabled and the DSP load limit is exceeded when
instantiating a new UAD plug-in, an overload message will appear and DISABLED
will be displayed in the plug-in’s status bar. In this case, even though the UAD
plug-in loads, it will not process audio.
Limit DSP Load
This setting determines the maximum UAD DSP load. If performance issues such as
overloads, dropouts, stuttering, and/or other artifacts persist, change the UAD DSP load
value by clicking the triangles to the right of the percentage display or entering a value
directly with text entry.
Note: UAD-2 DSP load limiting is always on. 100% (the default value) is the
maximum available setting.
DSP LoadLock
DSP LoadLock reserves the maximum UAD‑2 DSP load required by each plug‑in, even
if certain plug‑in features are disabled. This ensures there will always be enough DSP
if those features are later enabled, or when automating parameters that affect the DSP
load.
Disabling LoadLock increases available UAD‑2 DSP by disabling unused features in
certain plug‑ins, but may cause problems with previously saved sessions that had all
plug‑in features enabled, or when automating parameters that affect the DSP load.
The specific UAD plug‑ins that have the ability to reduce DSP use when certain features
are disabled are listed in the UAD Instance Chart at
. These plug‑ins are
marked with an asterisk (*) in the chart.
Enabling DSP LoadLock is recommended for optimum performance. Disable LoadLock
only when you need to squeeze in that extra bit of DSP resources.
Note: Changes to this setting do not take effect until Live Rack is quit and
reopened.
(Extra Buffering)
Note: This setting does not apply to UAD-2 Live Rack and can be ignored.
