delayw writes asig into the delay area established by the preceding delayr unit. Viewed as a pair, these two units permit the formation of modified feedback loops, etc. However, there is a lower bound on the value of idlt, which must be at least 1 control period (or 1/kr).
Here is an example of the delayw opcode. It uses the files delayw.orc and delayw.sco.
Example 96. Example of the delayw opcode.
/* delayw.orc */ ; Initialize the global variables. sr = 44100 kr = 4410 ksmps = 10 nchnls = 2 ; Instrument #1 -- Delayed beeps. instr 1 ; Make a basic sound. abeep vco 20000, 440, 1 ; Set up a delay line. idlt = 0.1 adel delayr idlt ; Write the beep to the delay line. delayw abeep ; Send the beep to the left speaker and ; the delayed beep to the right speaker. outs abeep, adel endin /* delayw.orc */
/* delayw.sco */ ; Table #1, a sine wave. f 1 0 16384 10 1 ; Keep the score running for 2 seconds. f 0 2 ; Play Instrument #1. i 1 0.0 0.2 i 1 0.5 0.2 e /* delayw.sco */