PRESONUS AudioBox Stereo Quick Start Manual page 326

• Bands.
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L, LM, M, HM, H. Low, Low Mid, Mid, High Mid, High.
o
Frequency Knob. Adjust crossover frequency between bands. You must
have at least one octave between adjacent bands.
o
M, S, Bypass. Mute, Solo, and Bypass engage buttons for each band.
Editing the crossover frequencies in the display will move other bands when the bandwidth is
below one octave. Editing using automation will be limited to a one-octave bandwidth.
Moving the crossover to limit frequencies will disable bands.
• Metering.
o
Range Low. This is the lowest amplitude to be displayed in band meters. Click to
select from -120 dB, -80 dB, -48 dB, -24 dB, or -12 dB.
o
Range High. This is the highest amplitude to be displayed in band meters. Click to
select from +12 dB, 0 dB, -12 dB, -24 dB, or -48 dB.
o
Metering On/Off. Click to engage/disengage metering for all bands.
• Edit All Relative. Click to engage/disengage relative dynamics-settings editing for all
bands. When engaged, changing dynamics settings for the selected band will change
the same settings for all bands by the same amount.
• Auto Speed. Click to engage/disengage Auto Speed for the dynamics for all bands.
Sets adaptive Attack and Release times for all bands globally.
• Dynamics. Click on any band to select it and view/edit dynamics settings for that
band.
o
Dynamics Display. Click on handles in display to adjust dynamics settings.
o
Thresholds. No dynamics processing occurs for signals outside of the Threshold
settings—only gain amplification/attenuation.
o
Low Threshold. Adjusts the lower limit for signal to be processed. Variable from -
60 dB to 2x the knee length.
o
High Threshold. Adjusts the upper limit for signal to be processed. Variable from
0 dB to 2x the knee length.
o
Ratio. Adjusts dynamics-processing range. Variable from 1.10 (gating) to 20.1
(limiting).
o
Gain. Adjusts output gain. Variable from -36 dB to 36 dB.
o
Attack. Adjusts attack time for dynamics processing. Variable from 1 ms to 200 ms.
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