else
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## else

else — Executes a block of code when an "if...then" condition is false.

## Description

Executes a block of code when an "if...then" condition is false.

## Syntax

                else

## Performance

else is used inside of a block of code between the "if...then" and endif opcodes. It defines which statements are executed when a "if...then" condition is false. Only one else statement may occur and it must be the last conditional statement before the endif opcode.

## Examples

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

Example 257. Example of the else 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     ;;;realtime audio out
    ;-iadc    ;;;uncomment -iadc if realtime audio input is needed too
    ; For Non-realtime ouput leave only the line below:
    ; -o else.wav -W ;;; for file output any platform
    </CsOptions>
    <CsInstruments>

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

    instr 1

    ipch = cpspch(p4)
    ienv = p5

    if (ienv == 0) then
    	kenv adsr 0.01, 0.95, .7, .5
    else
    	kenv linseg 0, p3 * .5, 1, p3 * .5, 0
    endif

    aout vco2    .8, ipch, 10
    aout moogvcf aout, ipch + (kenv * 6 * ipch) , .5

    aout = aout * kenv
        outs aout, aout

    endin
    </CsInstruments>
    <CsScore>

    i 1 0 2 8.00 0
    i 1 3 2 8.00 1

    e
    </CsScore>
    </CsoundSynthesizer>

## See Also

elseif, endif, goto, if, igoto, kgoto, tigoto, timout

More information on this opcode: http://www.csoundjournal.com/2006spring/controlFlow.html , written by Steven Yi

## Credits

New in version 4.21

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