Qsynth(1) A fluidsynth Qt GUI Interface


qsynth [options] [soundfonts] [midifiles]


This manual page documents briefly the qsynth command.

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.


-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 [oss, alsa, alsa_seq, ...]
-K, --midi-channels=[num]
The number of midi channels [default = 16]
-a, --audio-driver=[label]
The audio driver [alsa,jack,oss,dsound,...]
-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 < 10, default = 0.2]
-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
-h, --help
Show help about command line options
-V, --version
Show version information


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


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