Section 7 — Effect Parameters TS-12 Musician’s Manual
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DECAY TIME Medium Room Range: 0.20 to 1.33
Large Room Range: 0.20 to 1.83
Controls the amount of time it takes for the reverberation to decay to a very low level after the
input signal stops. In room reverbs we don’t recommend higher settings, which tend to create an
infinite and unnatural sustain. Since most ambient room reverbs don’t naturally have a large
decay, set this low for the best sound.
PRE-DLY TIME Range: 0000 to 0750 msec
Controls the amount of time it takes for the original signal to be presented to the reverb. Higher
values denote a longer delay.
HF - DAMPING Range: 00 to 99
Controls the rate of attenuation of high frequencies in the decay of the reverberation. As natural
reverb decays, some high frequencies tend to get absorbed by the environment. Increasing the
value of this parameter will gradually filter out (dampen) more and more high-frequency energy.
BANDWIDTH Range: 00 to 99
The high-frequency bandwidth acts as a low pass filter on the signal going into the reverb,
controlling the amount of high frequencies that will pass into the effect. The higher the setting,
the more high frequencies are allowed to pass. This functions like a tone control on a guitar.
LF DECAY TIME Range: -99 to +99
Functions as a tone control and boosts (when set to a positive value) or cuts (when set to a
negative value) the rate at which low frequencies will decay.
DEFINITION Range: 00 to 99
Controls the rate at which echo density is increased with time. Setting this parameter too high
can cause the echo density to build at a rate which exceeds the decay rate. A general rule of
thumb is this: DEFINITION should not exceed the LF DECAY TIME added to the DECAY TIME.
INPUT DIFFUSION-1 Ranges: 00 to 99
These four values, in series with each other, smear the input signal transients, to diffuse and
smooth the sound. Lower values will cause impulse sounds to appear as a series of discrete
echoes, while higher values tend to increase the smear (smoother sounding with fewer discrete
echoes). Experiment with different levels between the diffuser parameters to find the settings
that are right for your source. We recommend settings of 50 for starters.
REFL-1 TIME Range: 0000 to 0150 msec
Controls the delay time for the first pre-echo. Pre-echoes are the first sounds that have been
reflected back from the walls or reflective “live” surfaces. Higher values delay the diffused signal
more.
REFL-1 LEVEL Range: 00 to 99
Controls the level of the first pre-echo. This pre-level controls the echo send to the Definition.
REFL-1 SEND Range: 00 to 99
Controls the level of the first pre-echo, with the echo routed directly to the output.
REFL-2 TIME Range: 0000 to 0150 msec
Controls the delay time for the second pre-echo.
REFL-2 LEVEL Range: 00 to 99
Controls the level of the second pre-echo. As a signal continues to bounce off the different
reflective surfaces (walls), it decreases in volume. Set this parameter to a lower value than REFL-
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