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Audio - Synthesizers (3)

Caustic v3.2.0

Checker on 1 Feb 2017
  • 59MB (uncompressed)
  • Released on 1 Feb 2017
  • Suggested by portablefree

Caustic is a music creation tool inspired by rack-mount synthesizers / samplers rigs. Create your rack by adding up to 14 machines from a choice of synths, drum machines, vocoder, and more. Some included rigs:

  • Subsynth - Virtual analog subtractive synthesizer
  • PCMSynth - Multi-sample wave synthesizer
  • BassLine - 303-like monosynth
  • BeatBox - 8-channel sampling drum machine
  • PadSynth - Harmonic table pad synthesizer
  • 8BitSynth - 8bit equation solver synthesizer
  • Modular - Fully configurable and routable synthesizer
  • Organ - Hammond-like tonewheel organ with rotary speaker
  • Vocoder - 8-band harmonic vocoder
  • FMSynth - DX-style 3-operator fm synthesizer
  • KSSynth - Karplus-Strong string modeling synth
  • SawSynth¬†- Supersaw-type polysynth

Cross platform (Mac, iOS, Linux via Wine, and Android).

System Requirements: WinXP / Vista / Win7 / Win8 / Win10 / Wine
Writes settings to: Application folder
Stealth: ? Yes
License: Freeware
How to extract: Download the "Standalone" ZIP package and extract to a folder of your choice. Launch Caustic.exe.
What's new? See:
Latest comments
domestique on 2016-08-29 14:08

Thank you shnbwmn :)

portablefree on 2017-02-01 15:00

Updated to v. 3.2 (Jan., 31, 2017)
- Download from website works (
- Same conditions: free with no official support (main apps are for Android and iOS)
- New synth, support for stereo samples, support more meters (3/4, etc.), improved wav editor, more export options, etc.
- See 6 last new videos tutorials:

See all

X-VisualMusic v1.1.0 [rev2]

webfork on 27 Dec 2016
  • 2MB (uncompressed)
  • Suggested by Taf

VisualMusic lets you play 128 musical instruments on your PC including flute, bagpipes and even whistle. You can even record, edit, and save what you are playing. If you not expert with the keyboard, the program provides you an easy scripting language to create music just by entering what key in which instrument you want to play for how much time.

X-VisualMusic is the portable version in win-PenPack format.

System Requirements: Win98 / WinME / WinNT / Win2K / WinXP / Vista / Win7
Writes settings to: Application folder
Dependencies: MSVBVM60.DLL
Stealth: ? Yes
License: Freeware/Open Source
How to extract: Download the ZIP package and extract to a folder of your choice. Launch X-Visualmusic.exe.

RolloSONIC v1.1.2

webfork on 15 Oct 2018
  • 4MB (uncompressed)
  • Released on 3 Jul 2015
  • Suggested by RolloSONIC

RolloSONIC is a modular sound-synthesis environment with mouse-guided tweaking and real-time module interconnection. Automated control channel duplexing, a variable-bandwidth control pipe, and multi-device euphony support various possibilities. Like the great module racks historically used in making sound effects for science-fiction movies, RolloSONIC lets you add and connect audio-processing modules together, where the sound is playing the entire time so that changes to the interconnections and changes to the sliders are heard immediately -- just like with the real thing.

The program takes the idea to the next level by letting you incorporate your mouse movement into the control channels. Optionally, you can also incorporate your USB or MIDI (musical) keyboard controller and its knobs and sliders into the mix of control data.

The existing introduction video is highly recommended.

System Requirements: WinXP / Vista / Win7 / Win8
Writes settings to: Application folder, unless run from the %PROGRAMFILES% folder
Stealth: ? Yes
Unicode support: Yes
License: Freeware
How to extract: Download RolloSONICv[version number].exe to a folder of your choice (except %PROGRAMFILES%) and launch.
What's new?
  • Changes include ability to set the on-screen mouse origin.
Latest comments
RolloSONIC on 2014-03-11 03:27

This new version has optional real-time modular output indicators, minimisability for modules, eleven glitches removed, several changes in usability and appearance, UAC (User Access Control) awareness for proper compatibility with Windows Vista and higher, and extensive internal changes to the module subsystem.

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