Specifications

When operating on a multi-channel bus, all channels are feeding the side chain by default, but it can be useful to prevent

some channels feeding the side chain for some reasons. Note also that the external side chain (EX), when activated,

disables the internal side chain.

Here are the different behaviors for external side chain depending of the host applications:

•

Audio Unit

in Live and Logic > The EX button is enabled by default even if no side chain buss is specified in the plug-in

handler. All channels are summed and applied as external side chain automatically by the host application. This EX

button must be disabled if the internal side chain management of the plug-in is preferred because it isn't phase sensitive.

•

RTAS

> The EX button is only active if a side chain buss is selected from the plug-in handler. To use the internal side

chain of the plug -in no external side chain must be selected.

•

VST

> The external side chain bus must be routed as a particular channel of the mixer slice on which the plug-in is

inserted (processing a stereo signal requires 3 channels). Then, from the plug-in interface, this particular must be

selected as side chain source. The EX button never appears. This allows to mix both internal and external signals for side

chain.

MS Width Control (20)

Unit: dB - Value Range: -6 / +6 - Step: 0.01

Default Value: 0

Sets the stereo width of the processed signal. A -6 dB value deceases the stereo width. A +6 dB value increases the

wideness of the stereo mix but can produce phase issue.

MS Mode On/Off (21)

Default Value: Off

Enables one MS encoding matrix at the input and one MS decoding matrix at the output of the dynamic processing in order

to control the stereo width of the mix. When engaged, the side chain is fed by a MS encoded signal that is reflected in the

display section. M channel corresponds to the normal left channel. And the S channel corresponds to the normal right

channel This feature is only available when two channels (no more, no less) are processed.

Time Related Settings:

Delay (47)

Unit: ms - Value Range: 0 to 566.89 ms

Default Value: 0 ms

A delay reflecting the attack time can be introduced into the signal path in order to produce a zero attack time for the

dynamic processing. Shifting the delay value from the attack time allows to control transients. A delay value inferior to the

attack value lets peaks untouched by the processing.

Note that the different delay values of every band are automatically compensated. Alchemist can't be used to produce delay

based special effects.

Warning: Morphing between presets with different delay values produces sound artefacts.

Of course this delay introduces latency in the processing.

Auto Delay (46)

Default Value: Off

4.3 Solera II Dynamic Processing Parameters Detailed