delayw
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## delayw

delayw — Writes the audio signal to a digital delay line.

## Description

Writes the audio signal to a digital delay line.

## Syntax

    delayw asig

## Performance

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).

## Examples

Here is an example of the delayw opcode. It uses the file delayw.csd.

Example 211. Example of the delayw opcode.

See the sections Real-time Audio and Command Line Flags for more information on using command line flags.

    <CsoundSynthesizer>
    <CsOptions>
    ; Select audio/midi flags here according to platform
    -odac     ;;;RT audio out
    ;-iadc    ;;;uncomment -iadc if RT audio input is needed too
    ; For Non-realtime ouput leave only the line below:
    ; -o delayw.wav -W ;;; for file output any platform
    </CsOptions>
    <CsInstruments>

    sr = 44100
    ksmps = 32
    nchnls = 2
    0dbfs = 1

    gasig  init 0
    gidel  = 1		;delay time in seconds

    instr 1

    ain  pluck .7, 440, 1000, 0, 1
         outs ain, ain

    vincr gasig, ain	;send to global delay
    endin

    instr 2

    ifeedback = p4

    abuf2	delayr	gidel
    adelL 	deltap	.4		;first tap (on left channel)
    adelM 	deltap	1		;second tap (on middle channel)
    	delayw	gasig + (adelL * ifeedback)

    abuf3	delayr	gidel
    kdel	line    1, p3, .01	;vary delay time
    adelR 	deltap  .65 * kdel	;one pitch changing tap (on the right chn.)
    	delayw	gasig + (adelR * ifeedback)
    ;make a mix of all deayed signals
    	outs	adelL + adelM, adelR + adelM

    clear	gasig
    endin

    </CsInstruments>
    <CsScore>

    i 1 0 1
    i 1 3 1
    i 2 0 3  0	;no feedback
    i 2 3 8 .8	;lots of feedback
    e
    </CsScore>
    </CsoundSynthesizer>

## See Also

delay, delay1, delayr

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