SonicPhoto free audio-converter by Skytopia

SonicPhoto is a free audio converter plugin developed by Skytopia. Compatible OS(s): Windows .

SonicPhoto is an audio program to convert from pictures, photos and drawings to sound. Each picture has its own ‘signature’, and SonicPhoto will allow you to hear what the picture sounds like.

Higher parts in the picture create higher pitches, while lower areas create deeper tones. Likewise, brighter areas make that tone louder (and darker areas, quieter).

Also included is an instrument/harmony feature so you can create stunning tonal sounds, such as sparkling synths, rippling arpeggios, howling winds, deep organs, dazzling lasers, roaring bass and metallic drones.

Features include:

  • Create an infinite variety of sounds ranging based on the patterns in any picture.
  • Instrument and harmony quantization so you can create tonal sounds.
  • Dozens of in-built presets, so you can immediately try sounds out and experiment.
  • Convincing stereo is automatically added to all sounds.
  • Very easy to use GUI with everything you need at a click of a button.
  • Well thought out system to loading and save custom projects.
  • Instantly adjust the quality to suit your needs (low for preview, high for final result).


Experimental composers will appreciate the otherworldly sounds SonicPhoto can produce with ease. Sounds lasting up to an hour in length can provide a backing soundtrack to a film, or be mixed with a piece of music to enrich the atmosphere.

On the shorter end of the time scale, sounds lasting less than half a second can be rendered, with all the aforementioned options such as tonality and frequency adjustment to hone the sound to your requirements.

Video demo:

See SonicPhoto in action with this video demonstration below (also see right for MP3 only samples).

{See video at top of page}

Pro Audio Converter

Pro Audio Converter free audio-converter by Babelson Audio

Pro Audio Converter is a free audio converter plugin developed by Babelson Audio. Compatible OS(s): macOS.

Pro Audio Converter is a free MacOS app that converts audio files for you. The app currently supports WAV, AIFF, CAF, M4a. You can configure the quality, bitrate, sampling rate, and number of channels.


Paint2Sound free software-synthesizer | audio-converter by DocNashSynths

Paint2Sound is a free software synthesizer and audio converter developed by DocNashSynths. Available format(s): for Windows .

Paint2Sound converts any loaded .jpg or .bmp image, or any picture you care to draw/paint with it, into a soundscape.

Each pixel row of the image represents a frequency band. The application synthesizes sine waves from each pixel row with an instantaneous amplitude determined by the brightness of each pixel in the pixel row, and then sums together all the sine waves.

User control is provided over various parameters such as sample rate, sound duration, the distribution of frequencies across the pixel rows and the overall level in the mix of each sine wave.

{See video at top of page}

Folder-to-SFZ Converter

Folder-to-SFZ Converter free audio-converter by Versilian Studios

Folder-to-SFZ Converter is a free audio converter plugin developed by Versilian Studios. Compatible OS(s): Any OS.

Have a folder of samples lying around just waiting to be mapped and used? We had this utility built in order to allow rapid and effective mapping of large sample sets to the SFZ 2.0 format, and figured we might as well make it public. Capable of working with over a dozen naming conventions (and customizable to work with almost any others imaginable), this tool is a handy bridge into SFZ creation for both seasoned and amateur library developers:

  • Rapid mapping of large sets of raw samples as .sfz format.
  • Automated mapping of velocities, pitches, and RR’s.
  • Flexible, customizable dictionary system allows usage with almost any naming convention.
  • Able to manage missing RR, varying numbers of velocity layers, and all sorts of flaws.
  • Semi-regularly updated.

Check out the product manual here.

Walkthrough videos are available {See video at top of page}.


ZynAddSubFX free software-synthesizer by paulnasca 2

EnDiskEx is a free audio converter plugin developed by EnDiskEx. Compatible OS(s): Windows, macOS, Linux.

EnDiskEx is a command-line tool that automates bulk extraction of instruments, sequences, songs, and banks from Ensoniq-formatted disk images (RAW, GKH, EDE, and EDA) for the EPS/ASR family of samplers. The extracted files are saved as EFE / SMF / TXT files.

EnDiskEx is explicitly aimed at extracting banks for recreation within a different DAW with as much automation as possible. It will track down the instrument and song files even if they were saved on another disk. There exists a powerful mapping feature to correct for any errors in this process which has been found to be useful for ‘correcting’ issues seen by the authors.

EnDiskEx has been tested and validated against a variety of RAW, GKH, EDE, and EDA images files found on the Internet at one time or another, including but not limited to the ASR factory disks, the EPS 16+ factory disks, and the EPS (classic) factory disks.