Creative 0404 PCIe Manuel du propriétaire Page 61

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5 - Effects
Core Effects Descriptions
E-MU Digital Audio System 61
Mono Delays - 100, 250, 500, 750, 1500, 3000
A delay line makes a copy of the incoming audio, holds it in memory, then plays it back after a
predetermined time. The delay number refers to the maximum delay time that can be
produced by the delay line. The six lengths, from 100 ms to 3 seconds, allow you to make the
most efficient use of the effect memory resource.
Long delays produce echoes, short delays can be used for doubling or slapback effects. Very
short delays can be used to produce resonant flanging and comb filter effects or create
monotone robotic-sounding effects (Hint: use feedback). Stereo signals are summed together
before entering the Mono Delay.
There is also a feedback path to send the delayed audio back through the delay line. When
creating echo effects, the feedback controls how many echoes will be produced. With short
delays, the feedback control acts as a resonance control, increasing the amount of comb filtering
produced by the delay line. Comb filtering: See page 57.
A High Frequency Rolloff filter in the feedback path cuts some of the high frequency energy
each time the audio goes through the delay line. This simulates the natural absorption of high
frequencies in a room and can also be used to simulate tape-based echo units.
The Wet/Dry mix controls how loud the echoes are in relation to the original signal.
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%
Parameter Description
Delay Time
Mono Delay 100
Mono Delay 250
Mono Delay 500
Mono Delay 750
Mono Delay 1500
Mono Delay 3000
Sets the length of the delay in milliseconds.
(.01ms. minimum increment between settings)
Range: 1 millisecond to 100 milliseconds
Range: 1 millisecond to 250 milliseconds
Range: 1 millisecond to 500 milliseconds
Range: 1 millisecond to 750 milliseconds
Range: 1 millisecond to 1.5 seconds
Range: 1 millisecond to 3 seconds
Feedback Sets the amount of delayed signal that will be recirculated through
the delay line. Range: 0% to 100%
Parameter Description
Delay
L In
Feedback
Dela
y
Time
R In
L Out
R Ou
t
HF
Rolloff
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