Provided by: fluidsynth_2.1.0-1_amd64 bug


       FluidSynth - a SoundFont synthesizer


       fluidsynth [options] [ SoundFonts ] [ midifiles ]


       FluidSynth  is a real-time MIDI synthesizer based on the SoundFont(R) 2 specifications. It
       can be used to render MIDI input or MIDI files to audio.  The MIDI events are read from  a
       MIDI device. The sound is rendered in real-time to the sound output device.

       The  easiest  way  to start the synthesizer is to give it a SoundFont on the command line:
       'fluidsynth soundfont.sf2'. fluidsynth will load the SoundFont and read MIDI  events  from
       the  default  MIDI  device  using the default MIDI driver.  Once FluidSynth is running, it
       reads commands from the stdin. There are commands to send MIDI events manually, to load or
       unload SoundFonts, and so forth. All the available commands are discussed below.

       FluidSynth  can  also be used to play a list of MIDI files. Simply run FluidSynth with the
       SoundFont and the list of MIDI files to play. In this case you might not want to open  the
       MIDI  device  to  read external events. Use the -n option to deactivate MIDI input. If you
       also want to deactivate the use of  the  shell,  start  FluidSynth  with  the  -i  option:
       'fluidsynth -ni soundfont.sf2 midifile1.mid midifile2.mid'.

       Run fluidsynth with the --help option to check for changes in the list of options.


       fluidsynth accepts the following options:

       -a, --audio-driver=[label]
              The audio driver to use. "-a help" to list valid options

       -c, --audio-bufcount=[count]
              Number of audio buffers

       -C, --chorus
              Turn the chorus on or off [0|1|yes|no, default = on]

       -d, --dump
              Dump incoming and outgoing MIDI events to stdout

       -E, --audio-file-endian
              Audio file endian for fast rendering or aufile driver ("-E help" for list)

       -f, --load-config
              Load command configuration file (shell commands)

       -F, --fast-render=[file]
              Render MIDI file to raw audio data and store in [file]

       -g, --gain
              Set the master gain [0 < gain < 10, default = 0.2]

       -G, --audio-groups
              Defines the number of LADSPA audio nodes

       -h, --help
              Print out this help summary

       -i, --no-shell
              Don't read commands from the shell [default = yes]

       -j, --connect-jack-outputs
              Attempt to connect the jack outputs to the physical ports

       -K, --midi-channels=[num]
              The number of midi channels [default = 16]

       -l, --disable-lash
              Don't connect to LASH server

       -L, --audio-channels=[num]
              The number of stereo audio channels [default = 1]

       -m, --midi-driver=[label]
              The name of the midi driver to use. "-m help" to list valid options.

       -n, --no-midi-in
              Don't create a midi driver to read MIDI input events [default = yes]

       -o     Define a setting, -o name=value ("-o help" to dump current values)

       -O, --audio-file-format
              Audio file format for fast rendering or aufile driver ("-O help" for list)

       -p, --portname=[label]
              Set MIDI port name (alsa_seq, coremidi drivers)

       -q, --quiet
              Do not print welcome message or other informational output

       -r, --sample-rate
              Set the sample rate

       -R, --reverb
              Turn the reverb on or off [0|1|yes|no, default = on]

       -s, --server
              Start FluidSynth as a server process

       -T, --audio-file-type
              Audio file type for fast rendering or aufile driver ("T help" for list)

       -v, --verbose
              Print out verbose messages about midi events

       -V, --version
              Show version of program

       -z, --audio-bufsize=[size]
              Size of each audio buffer


       The  settings  to  be  specified with -o are documented in the fluidsettings.xml hopefully
       shipped        with         this         distribution         or         online         at  .  We  recommend  viewing  this file in a
       webbrowser, favourably Firefox.



       help   Prints out list of help topics (type "help <topic>" to view  details  on  available

       quit   Quit the synthesizer


       load filename
              Load a SoundFont

       unload number
              Unload a SoundFont. The number is the index of the SoundFont on the stack.

       fonts  Lists the current SoundFonts on the stack

       inst number
              Print out the available instruments for the SoundFont.


       noteon channel key velocity
              Send a note-on event

       noteoff channel key
              Send a note-off event

       cc channel ctrl value
              Send a control change event

       prog chan num
              Send program-change message

       select chan sfont bank prog
              Combination of bank-select and program-change

              Print out the presets of all channels.


       gain value
              Set the master gain (0 < gain < 5)

       interp num
              Choose interpolation method for all channels

       interpc chan num
              Choose interpolation method for one channel


       set [0|1]
              Turn the reverb on or off

       set num
              Change reverb room size

       set synth.reverb.damp num
              Change reverb damping

       set synth.reverb.width num
              Change reverb width

       set synth.reverb.level num
              Change reverb level


       set [0|1]
              Turn the chorus on or off

       set n
              Use n delay lines (default 3)

       set synth.chorus.level num
              Set output level of each chorus line to num

       set synth.chorus.speed num
              Set mod speed of chorus to num (Hz)

       set synth.chorus.depth num
              Set chorus modulation depth to num (ms)


              Reloads the default MIDI routing rules (input channels are mapped 1:1 to the synth)

              Deletes all MIDI routing rules.

       router_begin [note|cc|prog|pbend|cpress|kpress]
              Starts a new routing rule for events of the given type

       router_chan min max mul add
              Limits  the  rule  for events on min <= chan <= max.  If the channel falls into the
              window, it is multiplied by 'mul', then 'add' is added.

       router_par1 min max mul add
              Limits parameter 1  (for  example  note  number  in  a  note  events).  Similar  to

       router_par2 min max mul add
              Limits parameter 2 (for example velocity in a note event). Similar to router_chan

              Finishes the current rule and adds it to the router.

       Router examples


       router_begin note

       router_chan 0 7 0 15


       Will accept only note events from the lower 8 MIDI
              channels.  Regardless  of  the  channel,  the  synthesizer  plays the note on ch 15

       router_begin cc

       router_chan 0 7 0 15

       router_par1 1 1 0 64

              Configures the modulation wheel to act as sustain pedal (transforms CC 1 to  CC  64
              on the lower 8 MIDI channels, routes to ch 15)


       Peter Hanappe <>
       Markus Nentwig <>
       Antoine Schmitt <>
       Josh Green <>
       Stephane Letz <>
       Tom Moebert <tom[d0t]mbrt[√ĄT]gmail[d0t]com>

       Please check the AUTHORS and THANKS files for all credits


       SoundFont(R) is a registered trademark of E-mu Systems, Inc.

                                           Oct 27, 2019                             FluidSynth(1)