FluidSynth
software synthesizer
FluidSynth, formerly named iiwusynth, is a free open source software synthesizer which converts MIDI note data into an audio signal using SoundFont technology without need for a SoundFont-compatible soundcard. FluidSynth can act as a virtual MIDI device, able to receive MIDI data from any program and transform it into audio on-the-fly. It can also read in SMF (.mid) files directly. On the output side, it can send audio data directly to an audio device for playback, or to a Raw or Wave file. It can also convert a SMF file directly to an audio file in faster-than-real-time. The combination of these features gives FluidSynth the following major use cases:
Synthesizing MIDI data from another application directly to the speakers,
Synthesizing MIDI data from another application, recording the output to an audio file,
The MIDI data for either of the above can be received from an application, or a MIDI controller device (e.g keyboard / pads) attached to the computer (e.g. USB or Bluetooth) or received over a network,
Playing a MIDI file to the speakers,
Converting a MIDI file to a digital audio file.
The size of loaded SoundFont banks is limited by the amount of RAM available. There is a GUI for FluidSynth called Qsynth, which is also open source. Both are available in most Linux distributions, and can also be compiled for Windows.
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This entry incorporates text from “FluidSynth” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.