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DC-1 Digital Controller
DC-1Effects
The Church Effect uses a reverberation algorithm, which differs from
ambience in that it does not simulate the reflections of specific halls, but
emphasizes rich, smooth reverberant decay in small and medium spaces. It
works well for simulating a space with a long reverberation time relative to
its size, such as a reverberant chamber, or a church.
Parameter Initial Value Range
MID RT 1.89 sec .89-13.42 sec
BASS RT 2.36 sec 0.7, 1.0, 1.25xMID RT
HALL SIZE 30 Meters 4-30 Meters
PRE-DELAY 24ms 0-88ms
ROLLOFF 2.6kHz 453Hz-20.0kHz
SPEECH DETECT ON ON/OFF
CENTER LEVEL 7 0-15
SUBWOOFER LVL +0dB -5 to +5dB
EFFECT LEVEL -01dB -30 to +05dB
CUSTOM
MID RT (midrange reverberation time) is the time required for midrange
sounds to decay 60dB in level.
BASS RT (low frequency reverberation time) depends on MID RT and is
expressed as a multiplier. BASS RT should be set to 1.0 x MID RT for a more
natural effect in smaller spaces.
HALL SIZE allows you to select hall sizes of lengths ranging from 4-30
meters (in increments of 2 meters).
PRE-DELAY increases the delay between the direct sound and the onset of
reverberation. Because some pre-delay is inherent in the program material,
a value of 0 is usually a good starting point. Increasing the pre-delay value
will make the hall sound larger.
ROLLOFF mimics the absorption of the air in the hall and, typically, should
begin with a low frequency when simulating larger spaces.
SPEECH DETECT activates a circuit that distinguishes monaural speech
from other inputs. Essentially, this control turns down the effect to make
speech clearer. Whenever stereo signals are present, the right and left input
channels are used independently as inputs to the ambience synthesis. If
there is a strong monaural speaking voice present at the same time, this
component of the input to the Church effect is reduced while the stereo
component is increased.
If the input signal is pure monaural speech the reverb is almost entirely
attenuated. SPEECH DETECT is a real benefit to some popular music
(where spoken voice, such as rap, occurs along with the music), stereo
television and early stereo movies. Any stereo material which was not
carefully mixed for surround is a good candidate for playing through the
Church effect with Speech Detect on.
Church
Church Parameters