Creative 1212M, 1820M owner manual Mono Delays 100, 250, 500, 750, 1500, Rolloff

5 - Effects

Core Effects Descriptions

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 68.

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.

Feedback

HF

Rolloff

L In L Out

Delay

R In		R Out
	Delay Time
Parameter	Description
Delay Time	Sets the length of the delay in milliseconds.
	(.01ms. minimum increment between settings)
Mono Delay 100	Range: 1 millisecond to 100 milliseconds
Mono Delay 250	Range: 1 millisecond to 250 milliseconds
Mono Delay 500	Range: 1 millisecond to 500 milliseconds
Mono Delay 750	Range: 1 millisecond to 750 milliseconds
Mono Delay 1500	Range: 1 millisecond to 1.5 seconds
Mono Delay 3000	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%
High Freq. Rolloff	Damps high frequencies in the feedback path.
	Range: 0% to 100%

72 Creative Professional