Kurzweil PC3A7 [212/423] Reverbs

Kurzweil PC3A7 [212/423] Reverbs
Effects and Effect Mode
Effects Overview
9-13
Reverbs
Room Type changes the conguration of the eect to simulate a wide array of room types and
sizes including booths, small rooms, chambers, halls and large spaces. Because this parameter
changes the structure of the reverb eect, you need to be careful when assigning it a MOD—
changing it in real time while signal is passing through it is likely to cause audible artifacts. Room
types in dierent eects with similar names do not necessarily sound the same.
Rvrb Time is the RT
60
—the time it takes for the reverb to decay to 60 dB below its initial level—in
seconds. It is accurate assuming that several other parameters (HF Damping, Di Scale, Size
Scale, and Density) are at their nominal levels. It is adjustable up to “Inf”, which creates an
innitely-sustaining reverb.
LateRvbTim adjusts the basic decay time of the late portion of the reverb after diusion.
L Pre Dly and R Pre Dly (Pre-Delay) is the time between the start of a sound and the output of
the rst reverb reections from that sound. Longer pre-delays can help make larger spaces sound
more realistic. Longer times can also help improve the clarity of a mix by separating the reverb
signal from the dry signal, so the dry signal is not obscured. You can set a separate time for the
left and right reverb signals using L Pre Dly and R Pre Dly.
EarRef Lvl adjusts the mix level of the early-reection portion of eects which oer early
reections.
Late Lvl adjusts the mix level of the late-reverb portion of eects which oer early reections.
Di Scale scales the “diusion“ of the early reections, that is, how spread out they are as a
group over time. At very low settings, the early reections start to sound quite discrete, and at
higher settings the early reections are seamless. It is adjustable from 0.00 to 2.00, with 1.00 being
nominal for the given Room Type.
Density controls how tightly the early reections are packed in time. Low Density settings group
the early reections close together, while higher values spread the reections for a smoother
reverb. It is adjustable from 0.00 to 4.00, with 1.00 being nominal (and usually optimal) for the
given Room Type.
Expanse controls the amount of late reverb energy biased toward the edges of the stereo image. A
setting of 0% will bias energy towards the center. Moving away from 0% will bias energy towards
the sides. Positive and negative values will have a dierent character.
Build adjusts the envelope of certain portions of the reverb. Positive values speed up the
envelope, and negative values slow it down.
Size Scale changes the size of the current room. Altering this parameter will change the reverb
time and also cause some coloration of the reverb. It is adjustable from 0.00 to 4.00, with 1.00
being nominal (and usually optimal) for the given Room Type.
InnDecay, when turned “On”, causes the reverb tail to decay innitely. When it’s “O”, the
decay time is determined by the “Rvrb Time” or “LateRvbTim” parameters. This is a good
parameter to control with a footswitch.
Wet Bal (Wet Balance). Some reverb eects are actually two stereo reverbs in one, with each one
receiving a dierent mono signal. This balances the outputs of the two reverbs—0% means they
are being mixed equally.

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