fluidOut
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## fluidOut

fluidOut — Outputs sound from a given fluidEngine

## Syntax

    aleft, aright fluidOut ienginenum

## Description

Outputs the sound from a fluidEngine.

## Initialization

ienginenum -- engine number assigned from fluidEngine

## Performance

aleft -- Left channel audio output.

aright -- Right channel audio output.

Invoke fluidOut in an instrument definition numbered higher than any fluidcontrol instrument definitions. All SoundFonts used in the fluidEngine numbered ienginenum 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.

## Examples

Here is an example of the fluidOut opcode with two fluidOuts. It uses the file fluidOut.csd, 01hpschd.sf2 and 22Bassoon.sf2.

Example 261. Example of the fluidOut 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   -+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 fluidOut.wav -W ;;; for file output any platform
    </CsOptions>
    <CsInstruments>

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

    giengine1 fluidEngine
    ; soundfont path to manual/examples
    isfnum1	 fluidLoad "01hpschd.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 98

    imvol  init 7
    asigl, asigr fluidOut giengine1
           outs asigl*imvol, asigr*imvol
    endin

    instr 99

    imvol init 4
    asigl, asigr fluidOut giengine2		 ;add a stereo flanger
    adelL linseg 0, p3*.5, 0.02, p3*.5, 0	 ;max delay time =20ms
    adelR linseg 0.02, p3*.5, 0, p3*.5, 0.02 ;max delay time =20ms
    asigL flanger asigl, adelL, .6
    asigR flanger asigr, adelR, .6
          outs asigL*imvol, asigR*imvol
    endin
    </CsInstruments>
    <CsScore>

    i 1 0 2 60 100 ;play one note of instr 1
    i 2 2 2 60 100 ;play another note of instr 2 and...
    i 98 0 60      ;play virtual keyboard for 60 sec.
    i 99 0 60
    e
    </CsScore>
    </CsoundSynthesizer>

The output should include lines like these:

    chnl 1 using instr 1
    chnl 2 using instr 2

    SoundFont:   1  Bank:   0  Preset:   0  Harpsichord I-8
    SoundFont:   1  Bank:   0  Preset:  70  Ethan Bassoon mono

## See Also

fluidEngine, fluidNote, fluidLoad

More information on soundfonts in the Floss Manuals: http://en.flossmanuals.net/csound/ch048_d-reading-midi-files

Other information on soundfonts on Wikipedia: http://en.wikipedia.org/wiki/Soundfont

## Credits

Michael Gogins (gogins at pipeline dot com), Steven Yi. Thanks to Peter Hanappe for Fluidsynth.

New in Csound5.00

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