Ghost Plug-Ins - Merging Pyramix User Manual

On/Off and Bypass
Like VS3 plug-ins VST plug-ins have yellow On/Off and red bypass buttons on the mixer providing standard bypass
control.
The left-hand yellow button is lit when the effect is switched on. Switching an effect off removes it from the signal
chain and this may well be audible.The right-hand red button indicates that the effect is bypassed when lit.
Bypassing an effect retains the same delay as when the effect is active. Further, well behaved effects will continue
to calculate internal parameters when bypassed making seamless switching possible.
Note: Certain VST plug-ins such as UltraPitch do not have the standard VST internal "soft" bypass
function. In this case, Bypass simply acts as an ON/OFF button. One effect of this is a change in
Delay compensation scheme resulting in latency changes as the plug-in is switched ON or OFF.
Changing the delay compensation on the fly during Playback or Record is not safe since it will
cause a glitch or playback stall, and therefore Pyramix postpones the delay compensation
recomputation until the transport switches back to stop. When you change the bypass status of
such a plug-in on the fly the DelayComp status LED turns red and, on the next Stop, Delay com-
pensation is recomputed and the status LED returns to green.
Most VST plug-ins provide a private 'bypass' , (inside the plug-in's own user interface), which
enables clean, click-free and state-safe bypassing, without latency change (i.e. the plug-in main-
tains the same latency whether it is bypassed or not). Unfortunately, there is no simple and effec-
tive bypass solution for plug-ins that do not have an internal bypass.
VST Effect Wrapper Header
On the VST user interface windows themselves, the On/Off and bypass buttons are on the left of the caption bar
and function in the same way as the buttons on the mixer.
Caption Bar
The Caption bar text of these windows shows the ID of the related Strip or Bus and its name, before the plug-in
name.
Automation
Automation mode is set using the R and W buttons. (Unlike VS3 plug-ins individual controls cannot have indepen-
dent Automation modes).
Programs
The Program List combo box and previous/next buttons below the automation buttons are only present if the
plug-in has more than one program.

Ghost Plug-ins

As with VS3 plug-ins, the Ghost plug-in feature is implemented for VST plug-ins: essentially, this means that if you
load a project containing a VST plug-in which is unavailable on your machine, this plug-in will appear in the mixer
as a Ghost plug-in. Saving the project will not trash the missing plug-in's state information.
When a plug-in is a Ghost its name appears crossed out in the mixer :
VST - Plug-In Ghost
Effects and Plug-Ins : VST Support
VST - Plug-In On/Off and Bypass
VST - Plug-In Wrapper header
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