mute
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## mute

mute — Mutes/unmutes new instances of a given instrument.

## Description

Mutes/unmutes new instances of a given instrument.

## Syntax

    mute insnum [, iswitch]

    mute "insname" [, iswitch]

## Initialization

insnum -- instrument number. Equivalent to p1 in a score i statement.

“insname” -- A string (in double-quotes) representing a named instrument.

iswitch (optional, default=0) -- represents a switch to mute/unmute an instrument. A value of 0 will mute new instances of an instrument, other values will unmute them. The default value is 0.

## Performance

All new instances of instrument inst will me muted (iswitch = 0) or unmuted (iswitch not equal to 0). There is no difficulty with muting muted instruments or unmuting unmuted instruments. The mechanism is the same as used by the score q statement. For example, it is possible to mute in the score and unmute in some instrument.

Muting/Unmuting is indicated by a message (depending on message level).

## Examples

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

Example 646. Example of the mute 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 mute.wav -W ;;; for file output any platform
    </CsOptions>
    <CsInstruments>

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

    ; Mute Instrument #2.
    mute 2
    ; Mute Instrument three.
    mute "three"

    instr 1

    a1 oscils 0.2, 440, 0
       outs a1, a1
    endin

    instr 2	; gets muted

    a1 oscils 0.2, 880, 0
       outs a1, a1
    endin

    instr three	; gets muted

    a1 oscils 0.2, 1000, 0
       outs a1, a1
    endin

    </CsInstruments>
    <CsScore>

    i 1 0 1
    i 2 0 1
    i "three" 0 1
    e

    </CsScore>
    </CsoundSynthesizer>

## See also

Instrument Invocation

## Credits

New in version 4.22

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