4 guidelines for plug-in delay compensation – Solid State Logic DUENDE 82S6MC060A User Manual

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4.4 Guidelines for Plug-in Delay Compensation

When Duende plug-ins are used, the audio data to be

processed by Duende is sent to the Duende DSP engine by the

host application. The audio is then processed by the DSPs and

sent back to the host application.
This transfer of audio data produces latency (delay) in the

audio signal being processed. Latency time is dependant on

the sample rate, type of plug-in(s) loaded and the audio

interface buffer setting.
If this latency is not compensated, the processed audio will

arrive late in relation to the unprocessed audio. The more

processing that takes place on a particular signal, the later it

will arrive back in the host.
Most host applications automatically compensate for this

latency by simply turning on the Plug-in Delay Compensation

(PDC) or similar, usually found in the applications

preferences. Some hosts even provide full plug-in delay

compensation throughout the entire signal path, including

sends, groups, and buses.

The location of the settings for the PDC option within some

common host applications is as follows:
Cubase SX + Nuendo 2/3:

Always on unless the ‘Constrain Delay Compensation’ feature

is used to disable delay compensation on individual plug-ins:

Devices Menu>Plug-in Information>Use Delay Compensation
Logic Pro:

Preferences>Audio>General
Digital Performer 4/5:

Setup menu>Configure Audio System>Configure Studio

Settings...’
Ableton Live:

Options>Delay Compensation
Important: Delay compensation is fully automatic and requires

no user intervention when Duende plug-ins are used in hosts

that support full Plug-in Delay Compensation.

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