Universal Audio UAD Plug-Ins ver.7.4.2 - Manual (Page 74)

UAD Powered Plug-Ins Manual - 74 - Chapter 5: Cambridge EQ
Note: When operating at sample rates less than 44.1 kHz, the maximum fre-
quency will be limited.
Gain Knob This parameter determines the amount by which the frequency setting for the
band is boosted or attenuated. The available range is ±20 dB.
Q (Bandwidth)
Knob
The behavior of the Q parameter varies depending on the band mode and
the gain. For this reason Q is detailed separately in the parametric and shelf
mode sections (see
“Parametric Q” on page 74 and “Shelf Q” on page 77 ).
Parametric EQ
A band is in parametric mode when shelf mode is disabled (see “Shelf Enable
Button” on page 77 ). Three types of parametric EQ are available, as deter-
mined by the Parametric Type selector.
Parametric Type
Selector
The Parametric Type selector changes the response of the band
controls to reflect the behavior of various analog equalizers. It is
a global control for all 5 bands, and has no effect on the low
and high cut filters. Click the Parametric Type display to rotate between Types
I, II, and III.
The filter algorithm is the same in all three parametric types. The difference is
in the dependency between the gain and Q parameters. Each parametric
type has its own response characteristics.
In Type I mode, the Q remains constant regardless of the gain setting. In Type
II mode, the Q increases as gain is boosted, but remains constant as gain is
attenuated. In Type III mode, the Q increases as gain is boosted and attenu-
ated. See
Figure 19 , Figure 20 , and Figure 21 .
Parametric Q The Q (bandwidth) knob sets the proportion of frequencies surrounding the
center frequency to be affected by the gain control. The Q range is 0.25–16;
higher values yield sharper slopes.
Table 10. Available ranges for the Band Frequency parameter
Low Frequencies (LF) 20-400 Hz
Low-Mid Frequencies (LMF) 30-600 Hz
Mid Frequencies (MF) 100-6 kHz
High-Mid Frequencies (HMF) 900-18 kHz
High Frequencies (HF) 2k-20 kHz