qsynth(1)                   General Commands Manual                  qsynth(1)

NAME
       Qsynth - A fluidsynth Qt GUI Interface

SYNOPSIS
       qsynth [options] [soundfonts] [midifiles]

DESCRIPTION
       This manual page documents briefly the qsynth command-line options.

       Qsynth is a fluidsynth GUI front-end application written in C++ around
       the Qt framework using Qt Designer. Eventually it may evolve into a
       softsynth management application allowing the user to control and
       manage a variety of command line softsynths but for the moment it wraps
       the excellent FluidSynth.

       FluidSynth is a command line software synthesiser based on the
       Soundfont specification.

OPTIONS
       -n, --no-midi-in

              Don't create a midi driver to read MIDI input events [default =
              yes]

       -m, --midi-driver <label>

              The name of the midi driver to use [alsa_raw, alsa_seq, jack,
              ...]

       -K, --midi-channels <num>

              The number of midi channels [default = 16]

       -a, --audio-driver <label>

              The audio driver [alsa, jack, pipewire, ...]

       -j, --connect-jack-outputs

              Attempt to connect the jack outputs to the physical ports.

       -L, --audio-channels <num>

              The number of stereo audio channels [default = 1]

       -G, --audio-groups <num>

              The number of audio groups [default = 1]

       -z, --audio-bufsize <size>

              Size of each audio buffer.

       -c, --audio-bufcount <count>

              Number of audio buffers.

       -r, --sample-rate <rate>

              Set the sample rate.

       -R, --reverb <flag>

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

       -C, --chorus <flag>

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

       -g, --gain <gain>

              Set the master gain [0 < gain < 2, default = 1]

       -o, --option <name=value>

              Define a setting name=value

       -s, --server

              Create and start server [default = no]

       -i, --no-shell

              Don't read commands from the shell [ignored]

       -d, --dump

              Dump midi router events.

       -V, --verbose

              Print out verbose messages about midi events.

       -?, --help

              Displays help on command-line options.

       -v, --version

              Show version information.

FILES
       Configuration settings are stored in ~/.config/rncbc.org/Qsynth.conf

SEE ALSO
       fluidsynth(1)

AUTHOR
       Qsynth is written by Rui Nuno Capela, Richard Bown, Chris Cannam, Pedro
       Lopez-Cabanillas.

                                April 16, 2026                       qsynth(1)