Universal Audio UAD POWERED PLUG-INS ver.6.1 - Manual (Page 231)

UAD Powered Plug-Ins Manual - 231 - Chapter 18: Empirical Labs EL7 FATSO
Filter
(HP SIDE FILT)
Filter regulates the cutoff frequency of the filter on the compres-
sor's control signal sidechain. When active, frequencies below
the filter value are not passed to the sidechain. Values of 60
Hz, 120 Hz, 240 Hz, 480 Hz, and Off are available. The filter
slope is 6 dB per octave. When the compressor is disabled, Fil-
ter has no effect and its LED turns off. When the compressor is
enabled, Filter returns to its original value.
Tip: Removing low frequency content from the sidechain can reduce exces-
sive gain reduction and/or “pumping” on bass-heavy audio signals without
reducing bass content of the audio signal itself.
Note: The Filter parameter affects the control signal (sidechain) of the com-
pressor only. It does not filter the audio signal.
Attack Attack sets the amount of time that must elapse once the input signal
reaches the threshold level before compression is applied. The
faster the attack, the more rapidly compression is applied to signals
above the threshold.
The available attack time values are 0.9ms, 10ms, 30ms, 60ms,
and Default (unlit). The unlit behavior is depends upon whether or not the com-
pressor is active. These behaviors are described below.
Note: Attack values are approximations. Actual attack and release times
may vary depending on the compressor mode selected.
Attack LED’s Unlit – Compressor Active
When the compressor is enabled and all Attack LED’s are unlit, the attack
characteristic of the active compressor mode in FATSO Jr. is used. This “de-
fault” FATSO Jr. behavior can then be manually overridden with the Attack
button. However, when “pure” Spank mode is active, Attack cannot be mod-
ified. When Spank mode is combined with another compressor mode, Attack
can be changed, but the results are typically very subtle.
Tip: After experimenting with other time constants, one can return to the de-
fault attack setting of the FATSO Jr. if desired by cycling the attack control until
NO LEDs are lit (which indicates the default FATSO Jr. time constant).