fluidAllOut
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## fluidAllOut

fluidAllOut — Collects all audio from all Fluidsynth engines in a performance

## Syntax

    aleft, aright fluidAllOut

## Description

Plugin opcode in fluidOpcodes.

Collects all audio from all Fluidsynth engines in a performance

## Performance

aleft -- Left channel audio output.

aright -- Right channel audio output.

Invoke fluidAllOut in an instrument definition numbered higher than any fluidcontrol instrument definitions. All SoundFonts send their audio output to this one opcode. Send a note with an indefinite duration to this instrument to turn the SoundFonts on for as long as required.

In this implementation, SoundFont effects such as chorus or reverb are used if and only if they are defaults for the preset. There is no means of turning such effects on or off, or of changing their parameters, from Csound.

## Examples

Here is an example of the fluidAllOut opcodes. It uses the file fluidAllOut.csd.

    <CsoundSynthesizer>
    <CsOptions>
    ; Select audio/midi flags here according to platform
    -odac  -+rtmidi=virtual -M0    ;;;realtime audio out and realtime midi in
    ;-iadc    ;;;uncomment -iadc if realtime audio input is needed too
    ; For Non-realtime ouput leave only the line below:
    ;-o fluidAllOut.wav -W ;;; for file output any platform
    </CsOptions>
    <CsInstruments>

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

    giengine1 fluidEngine
    isfnum1	  fluidLoad "sf_GMbank.sf2", giengine1, 1
    	  fluidProgramSelect giengine1, 1, isfnum1, 0, 0

    giengine2 fluidEngine
    ; soundfont path to manual/examples
    isfnum2	  fluidLoad "22Bassoon.sf2", giengine2, 1
    	  fluidProgramSelect giengine2, 1, isfnum2, 0, 70

    instr 1

         mididefault   60, p3
         midinoteonkey p4, p5
    ikey init p4
    ivel init p5
         fluidNote giengine1, 1, ikey, ivel

    endin

    instr 2

         mididefault   60, p3
         midinoteonkey p4, p5
    ikey init p4
    ivel init p5
         fluidNote giengine2, 1, ikey, ivel

    endin

    instr 100

    imvol init 7 ;amplify a bit
    asigl, asigr fluidAllOut
          outs asigl*imvol, asigr*imvol

    endin
    </CsInstruments>
    <CsScore>

    i 1 0 2 60 127 ;play one note on instr 1
    i 2 2 2 60 127 ;play another note on instr 2 and...
    i 100 0 60     ;play virtual midi keyboard
    e
    </CsScore>
    </CsoundSynthesizer>

## See Also

fluidEngine, fluidNote, fluidLoad

More information on soundfonts is in the Floss Manuals: https://flossmanual.csound.com/midi/reading-midi-files

For other information on soundfonts look in the Wikipedia: http://en.wikipedia.org/wiki/Soundfont

## Credits

Opcode by Michael Gogins (gogins at pipeline dot com). Thanks to Peter Hanappe for Fluidsynth, and to Steven Yi for seeing that it is necessary to break up the Fluidsynth into several different Csound opcodes.

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