FluidSynth MIDI Synthesizer

In-app purchases
985 reviews
Content rating
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About this app

NOTE: A SoundFont (.sf2) is required to use this synthesizer.

Plug your device to your computer, or hook a MIDI USB master keyboard via an OTG cable to play with this low-latency FluidSynth 2.1.7 based Synthesizer.

- load SoundFont 2
- record your performances directly in WAVE files

This application uses a modified version of FluidSynth, you can find the source code here https://github.com/VolcanoMobile/fluidsynth-android
Updated on
Sep 30, 2023

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
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No data collected
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Ratings and reviews

898 reviews
Bridgette D
March 11, 2023
Love the responsiveness (no latency) between keyboard and output. The app recognizes all the main midi commands. There's still plenty of SF2 sounds out there to take advantage of. The only issue is that I have been unable to find a way to delete any individual soundfont. If you test out a soundfont, and then don't like it, I can't delete it. I have to go to the apps data and delete that way, but that deletes all soundfonts. Even with that, I still highly recommend it! - Jack
13 people found this review helpful
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A Google user
August 10, 2019
Works incredibly well with my controller app BeatScratch! I plan to link to it from within the app. My one complaint: after switching SoundFonts, the synthesizer starts going kinda glitchy and restarting all the time. If I go into the Android app info for the settings, "Force stop" it, and then try again, FluidSynth plays everything beautifully. But something in switching the fonts is broken unless you do this.
33 people found this review helpful
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A Google user
April 13, 2019
Keystation Mini 32: 1)Easily recognizes & connects 2)Some internal sounds acceptable, others are a little thin. 3)With my keyboard it requires a lot of resources and power. 4)This demand tells me that sticking with my pc is only practical although on a basic level the software does work. It does what it is supposed to do.
10 people found this review helpful
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Volcano Mobile SNC
March 19, 2019
The synthesizer stops when you disconnect it. Either by unplugging the USB cable or by deselecting the device from the drop-down list. The notification should also goes away.