Operation Manual

6.22 Delay 88
The default value of the following parameter is set at construction
• MIDI channel: MIDI channel used by the sustain pedal.
6.22 Delay
The Delay module is a feedback loop with a variable delay in the feedback.
There is one input and one output. The input signal is sent into the feedback loop.
The output is the sum of the input signal and the returning signal from the feedback
loop. The duration of the delay can be adjusted, with the time knob (between 10 ms
and 1.5 s). The feedback knob sets the gain in the feedback loop (values between
0 and 1). If the on/off switch is in the off position, the module passes the input
on with no effect. The following figure shows the effect of the Delay module on a
pulse signal with a2/a1 = feedback gain.
delay
a1
a2
delay
with feedback = a2/a1
time
time
gaingain
Figure 41: Effect of Delay Module.
Typical Use
The Delay module is used to produce an echo effect when the delay is long (>100ms) or to color
the sound when the delay time is short (< 100 ms).
The default value of the following parameters is set during construction
• delay time: time delay, in seconds, applied to the input signal (between 1 ms and 1.5 s).
• feedback: gain applied to the delayed signal (values between 0 and 1).
Note: See also Sync Delay and Sync Ping Pong Delay.