Audio Damage 914 Fixed Filter Bank Upgrade From 907a - Manual (Page 7)

Operation
Like its hardware predecessor, the 914 plug-in is simple to operate. There are no mysterious modulators, no
critical level-dependent settings, no hidden windows or menus. Just turn the knobs until you like the way it
sounds. Simple, eh? If you’d like a more detailed explanation of what it does, read on.
We assume that you are familiar with using plug-ins with your particular host. If you have general questions
about using VST or AudioUnit plug-ins with your host, please refer to its documentation. 914 is a true stereo
processor that can process either mono or stereo signals, and can be used as an insert effect or on an effects-
send channel in your host’s mixer. If used in a stereo context (for example, as an insert on a stereo channel in
your DAW’s mixer), the left and right channels are processed independently with no summing.
The 914 contains fourteen filters: twelve band-pass filters, a low-pass filter, and a high-pass filter. These
names refer to how the filter blocks signals of some frequencies and passes signals of other frequencies. A
band-pass filter permits only a range (or band) of frequencies to pass through, blocking frequencies above
and below its center frequency. A low-pass filter passes signals below its corner frequencies and blocks
higher-frequency signals. A high-pass filter does the opposite: it passes signals above its corner frequency and
blocks lower-frequency signals.
The filters in 914 operate in parallel; that is, the
input signal is fed to all of the filters
simultaneously, and their outputs are mixed
together. Each filter has a knob which attenuates its
output, controlling the amount of its signal that is
present in the plug-in’s output. The original 914 had
passive filters; they only removed frequencies from
the input signal, not boosted them.
The Controls
1. The LOW PASS knob controls the level of the
output of the low-pass filter. The low-pass
filter’s corner frequency is 80Hz, so this knob
controls the loudness of all signal content with a
frequency of 200Hz or below.
2. The group of knobs in the middle of the panel
controls the levels of the outputs of the band-