FluidSynth 2.5.0 freeware

New Version

FluidSynth, developed by Tom Moebert, is a powerful software synthesizer that brings MIDI music to life with remarkable realism. It utilizes SoundFont technology, allowing users to load and play high-quality instrument samples seamlessly. With its user-friendly interface and robust features, FluidSynth caters to musicians, composers, and sound designers alike. Whether you're crafting intricate compositions or simply experimenting with sound, FluidSynth offers versatility and depth, making it an ... ...

Author Tom Moebert
Released 2025-10-05
Filesize 456.00 MB
Downloads 1577
OS Windows 11, Windows 10 32/64 bit, Windows 8 32/64 bit, Windows 7 32/64 bit, Windows Vista, Windows XP 32/64 bit
Installation Instal And Uninstall
Keywords FluidSynth, audio synthesizer, render audio, real-time synthesizer, synthesize, synthesizer, render, real-time
Users' rating
(37 rating)
FluidSynthMusic ComposersWindows 11, Windows 10 32/64 bit, Windows 8 32/64 bit, Windows 7 32/64 bit, Windows Vista, Windows XP 32/64 bit
FluidSynth - production audio Freeware Download Notice

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FluidSynth freeware - The Latest User Reviews
FluidSynth freeware - The Latest Versions History
2.5.0 Oct 5, 2025 New Release New Features:
Add a C++11-based OS abstraction layer as a replacement for glib, bringing these minor limitations when C++17 is unavailable (#1570, thanks to @mmlr)
Add native support for Downloadable Soundfont Format (#1626, thanks to @rsp4jack)
Fluidsynth now recognizes the DMOD INFO-subchunk (#1582, thanks to @spessasus)
A new positional flag has been introduced: -b, --bank-offset, (#1538, refer to UserManual for details)
Fluidsynth now natively supports the long CLI option flags on Windows (#1544)
Fluidsynth now supports native Android logging (#1621, thanks to @neoharp-dev)
Breaking Changes:
Support for SDL2 has been removed - pls. use SDL3 instead (#1594)
The processing order of fluidsynth's configuration files has been changed (#1573, refer to wiki for details)
The legacy shell commands for reverb and chorus have been removed (#1659, refer to UserManual for details)
Musically Breaking Changes:
It was discovered that fluidsynth was mapping some modulators slightly inaccurately into their normalized range (#1651, thanks to @baskanov)
Some Roland GS NPRN Params are now mapped to CC numbers (#1519, refer to wiki for details)
Fluidsynth now auto-detects whether Portamento Time is 7bit or 14bit wide - this fixes the infamous Descent Game08 tune (#705, #1232, #1311, #1456, #1495, #1517, see synth.portamento-time for details)
Previously, fluidsynth's default behavior was to use portamento only for those notes, that were played in a successive / legato manner; to further improve the portamento experience, this was changed and fluidsynth now plays portamento for all notes by default (#1656)
Other Changes:
Fix drum kits not always being selected after SysEx GS Rythm Part (#1579)
The LGPL license now uses the remote-only FSF address (#1568, thanks to @musicinmybrain)
The logic for parsing INFO chunks has been revised to improve handling of unknown INFO-subchunks (#1644)
Fix a race condition in fluid_synth_alloc_voice() public API function (#1664)
Fix installing static and
2.4.6 May 4, 2025 New Release Fix inconsistent library naming for MSVC vs. MinGW builds
Fix MIDI player skipping some events when seeking
A regression introduced in 2.4.5 could have caused a heap-based buffer overrun
Fix several issues when generating API docs with recent versions of Doxygen
2.4.4 Mar 16, 2025 New Release Support for SDL3 has been added, support for SDL2 has been deprecated (#1485, #1478, thanks to @andyvand)
Soundfonts that are not respecting the 46 zero-sample padding-space previously sounded incorrect when
synth.dynamic-sample-loading was active (#1484)
Allow drum channels to profit from Soundfont Bank Offsets by no longer ignoring MSB Bank changes (#1475)
Revise the preset fallback logic for drum channels (#1486)
A regression introduced in 2.4.1 may have caused interrupted real-time playback when voices were using the lowpass filter (#1481)
Improve multi-user experience when running fluidsynth as systemd service (#1491, thanks to @andrew-sayers)
Fix ordering and dependencies of fluidsynth's systemd service (#1500, thanks to @fabiangreffrath)
Revise fluidsynth's man page (#1499, thanks to @fabiangreffrath)

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