MixerSetLevel
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## MixerSetLevel

MixerSetLevel — Sets the level of a send to a buss.

## Syntax

    MixerSetLevel isend, ibuss, kgain

## Description

Sets the level at which signals from the send are added to the buss. The actual sending of the signal to the buss is performed by the MixerSend opcode.

## Initialization

isend -- The number of the send, for example the number of the instrument sending the signal (but any integer can be used).

ibuss -- The number of the buss, for example the number of the instrument receiving the signal (but any integer can be used).

Setting the gain for a buss also creates the buss.

## Performance

kgain -- The level (any real number) at which the signal from the send will be mixed onto the buss. The default is 0.

Use of the mixer requires that instruments setting gains have smaller numbers than instruments sending signals, and that instruments sending signals have smaller numbers than instruments receiving those signals. However, an instrument may have any number of sends or receives. After the final signal is received, MixerClear must be invoked to reset the busses before the next kperiod.

## Examples

In the orchestra, define an instrument to control mixer levels:

    instr 1
    	MixerSetLevel		p4, p5, p6
    endin

In the score, use that instrument to set mixer levels:

    ; SoundFonts
    ; to Chorus
    i 1  0  0 100  200  0.9
    ; to Reverb
    i 1  0  0  100  210  0.7
    ; to Output
    i 1  0  0  100  220  0.3

    ; Kelley Harpsichord
    ; to Chorus
    i 1  0  0  3  200  0.30
    ; to Reverb
    i 1  0  0  3  210  0.9
    ; to Output
    i 1  0  0  3  220  0.1

    ; Chorus to Reverb
    i 1  0  0  200  210  0.5
    ; Chorus to Output
    i 1  0  0  200  220  0.5
    ; Reverb to Output
    i 1  0  0  210  220  0.2

## Credits

Michael Gogins (gogins at pipeline dot com).

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