Reference Manual
CHAPTER 19. LIVE AUDIO EFFECT REFERENCE 248
19.7 EQ Eight
The EQ Eight Effect.
The EQ Eight effect is an equalizer featuring up to eight parametric lters per input channel,
useful for changing a sound's timbre. It extends the functionality of the former EQ Four
device, and is fully backward-compatible with EQ Four presets.
The input signal can be processed using one of three modes: Stereo, L/R and M/S. Stereo
mode uses a single curve to lter both channels of a stereo input equally. L/R mode provides
an independently adjustable lter curve for the left and right channels of a stereo input; M/S
mode (Mid/Side) provides the same functionality for signals that have been recorded using
M/S encoding.
When using the L/R and M/S modes, both curves are displayed simultaneously for reference,
although only the active channel is editable. The Edit switch indicates the active channel,
and is used to toggle between the two curves.
The lters can switch between six responses. From left to right in the display, these are:
Low cut (cuts frequencies below the specied frequency);
Low shelf (boosts or cuts frequencies lower than the specied frequency);
Bell curve (boosts or cuts over a range of frequencies);
Notch (sharply cuts frequencies within a narrow range);
High shelf (boosts or cuts frequencies higher than the specied frequency);
High cut (cuts frequencies above the specied frequency).