PreSonus ACP88 - Manual (Page 5)

OVERVIEW
2
1. 2 FEATURES (continued)
• Eight Dynamic Noise Gates.
Each channel of your ACP-88 has a separate dynamic noise gate that can be used to
Gate an entire drum kit, clean up a noisy tape machine, isolate an instrument or
separate a vocal from background noise. Each noise Gate provides control over Attack,
Threshold, Release and Gate close Range. The Gate close range can be useful in
creating a more natural sounding blend or mix when gating many instruments
at once.
• Comprehensive Channel Linking.
Using the Link function allows you to combine any combination of ACP-88 channels
effectively forming a subgroup. When linked, all processors follow the setting of the
Master processor which is always the processor furthest to the Left in a Link group. For
example, you could Link together channels 7 and 8 to form a Stereo pair, channels 3, 4
and 5 to form a subgroup of processors, while channels 1, 2 and 6 remain available for
independent applications such as compression, limiting, or gating as the situation
dictates.
• Separate Bypass and Gain for Every Channel.
Each Channel has a separate Bypass for auditioning a signal ‘before and after’
processing with the compressor, limiter, or the Gate and a Gain control to make up any
loss in signal level resulting from the amount of compression being applied.
• Compressor Sidechain Jack on Every Channel.
Each channel of your ACP-88 was designed with a special jack for spectral processing,
compression keying and ducking applications. Sidechaining is useful for removing
annoying sibilance from vocal tracks (de-essing) or automatically ducking tracks behind
a narrator for ‘auto mixing” a service, broadcast or performance. When multiple channels
are Linked together, the Send of the Sidechain jack of the Master channel contains a
mix of all the channels in the Link: a very cool feature allowing control over multiple
channels of processing with one Sidechain send/return. (See the section on
Sidechaining for application notes.)