Creative 70EM896106000 Owners Manual - Page 74

Lite Reverb, Early Reflections

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5 - Effects Core Effects Descriptions Lite Reverb Reverberation is a simulation of a natural space such as a room or hall. The Lite Reverb algorithm is designed to simulate various rooms and reverberation plates while using fewer DSP resources than the Stereo Reverb. Up to five Lite Reverbs can be used at once. Decay time defines the time it takes for the reflected sound from the room to decay or die away. The diagram below shows a generalized reverberation envelope. Early Reflections Late Reverb Time After a short pre-delay period, the echoes from the closest walls or ceiling are heard. These first echoes, or Early Reflections, vary greatly depending on the type of room. Some time after the early reflection cluster ends, the actual Reverberation (a dense cloud of complex wall reflections) begins and decays according to the time set by the Decay Time parameter. The Reverberance parameter controls the density and smearing of both the early reflections and the reverberation cloud. High frequency energy tends to fade away first as a sound is dissipated in a room. The High Frequency Decay Factor adjusts the time it takes for the high frequency energy to die away and thus changes the characteristics of the room. Rooms with smooth, hard surfaces are more reflective and have less high frequency damping. Rooms filled with sound absorbing materials, such as curtains or people, have more high frequency damping. The Low Frequency Decay Factor parameter adjusts the time it takes for the low frequencies to die away. This control adjusts the "boominess" of the room. Parameter Decay Time HF Decay Factor LF Decay Factor Early Reflections Reverberance Description Sets the reverb decay time. Range: 0% to 100% Sets the rate at which high frequencies die away. The high frequencies last longer as the percentage is increased. Range: 0% to 100% Sets the rate at which low frequencies die away. The low frequencies last longer as the percentage is increased. Range: 0% to 100% Sets the volume of the initial wall reflections. Range: 0% to 100% Sets the amount of scattering of the early reflections and the reverberation cloud. Range: 0% to 100% 74 Creative Professional

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5 - Effects
Core Effects Descriptions
74
Creative Professional
Lite Reverb
Reverberation is a simulation of a natural space such as a room or hall. The Lite Reverb
algorithm is designed to simulate various rooms and reverberation plates while using
fewer DSP resources than the Stereo Reverb. Up to five Lite Reverbs can be used at
once.
Time
Early Reflections
Late Reverb
Parameter
Description
Decay Time
Sets the reverb decay time. Range: 0% to 100%
HF Decay Factor
Sets the rate at which high frequencies die away. The high
frequencies last longer as the percentage is increased.
Range: 0% to 100%
LF Decay Factor
Sets the rate at which low frequencies die away. The low
frequencies last longer as the percentage is increased.
Range: 0% to 100%
Early Reflections
Sets the volume of the initial wall reflections.
Range: 0% to 100%
Reverberance
Sets the amount of scattering of the early reflections and
the reverberation cloud. Range: 0% to 100%
Decay time defines the time it takes for the reflected sound from the room to decay or
die away. The diagram below shows a generalized reverberation envelope.
After a short pre-delay period, the echoes from the closest walls or ceiling are heard.
These first echoes, or
Early Reflections
, vary greatly depending on the type of room.
Some time after the early reflection cluster ends, the actual
Reverberation
(a dense cloud
of complex wall reflections) begins and decays according to the time set by the Decay
Time parameter. The Reverberance parameter controls the density and smearing of
both the early reflections and the reverberation cloud.
High frequency energy tends to fade away first as a sound is dissipated in a room. The
High Frequency Decay Factor adjusts the time it takes for the high frequency energy to
die away and thus changes the characteristics of the room. Rooms with smooth, hard
surfaces are more reflective and have less high frequency damping. Rooms filled with
sound absorbing materials, such as curtains or people, have more high frequency
damping.
The Low Frequency Decay Factor parameter adjusts the time it takes for the low
frequencies to die away. This control adjusts the “boominess” of the room.