Polyphone – powerful SoundFont editor

Polyphone is a graphical SoundFont editor for creating and modifying sample-based musical instruments.

Its workspace follows the SoundFont structure, separating samples, instruments and presets with dedicated editing views for each level. It is designed for projects containing large collections of samples and parameters, making it useful for building instruments from recordings and refining existing SoundFonts. The interface is built with Qt and runs on multiple desktop platforms. Its tabbed layout also supports several open SoundFonts.

This is free and open source software.

Key Features

• Edits SF2, SF3, SFZ and sfArk files and opens GrandOrgue instrument files.
• Includes a built-in synthesizer playable from a virtual keyboard or MIDI input.
• Provides automatic root-key recognition and tools for finding suitable sample loops.
• Lets parameters for multiple selected elements be edited simultaneously.
• Offers tools for sample processing, instrument construction, ranges, envelopes and modulators.
• Imports WAV, FLAC, MP3, OGG, AIFF and SND audio samples.
• Records performances to WAV files.
• Provides a SoundFont explorer for browsing local directories and inspecting samples, instruments and presets before opening a file.
• Connects to Polyphone’s online SoundFont repository from the application.
• Supports per-sample compression and decompression in SF3 files.
• Exports SoundFont parameters to CSV for analysis.
• Can invoke an external audio editor on selected samples and automatically re-import modified audio.
• Includes tree filtering, drag-and-drop, copy and paste, and multi-selection for navigating complex projects.

Website: github.com/davy7125/polyphone
Support:
Developer: Davy Triponney
License: GNU General Public License v3.0

Polyphone is written in C++. Learn C++ with our recommended free books and free tutorials.

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