Open Source C Audio Editing Software

SoX is the Swiss Army Knife of sound processing utilities. It can convert audio files to other popular audio file types and also apply sound effects and filters during the conversion.

mp3splt is a free utility to split mp3, ogg vorbis and FLAC files without decoding, selecting begin/end time; if file is an album, you can get splitpoints automatically from internet or a local cue, cddb file. It also splits Mp3Wrap and AlbumWrap archives. Supports splitting and trimming by silence detection. For mp3 files, both ID3v1 and ID3v2 are supported using original tags or user defined tags.

A crossplatform music editor for creating Commodore 64 music. Uses reSID library by Dag Lem and supports alternatively HardSID & CatWeasel devices.

Sneedacity (formerly Audacity) is an easy-to-use, multi-track audio editor and recorder for Windows, Mac OS X, GNU/Linux and other operating systems. Sneedacity aims to provide a telemetry-free experience while otherwise being up-to-date with Audacity's original codebase, with minor improvements being added as (s)needed by contributors and volunteers like you at large. Sneedacity is free software licensed under GPL, version 2. Macros for chaining commands and batch processing. Scripting in Python, Perl, or any language that supports named pipes. Nyquist Very powerful built-in scripting language that may also be used to create plug-ins. Editing multi-track editing with sample accuracy and arbitrary sample rates. Accessibility for VI users. Analysis and visualization tools to analyze audio or other signal data.

A cross-platform patch editor for the E-MU Proteus 2000 sample-based synthesizer family. prodatum is free software.

RxFFmpeg is a high-performance multimedia processing framework built on top of FFmpeg and optimized specifically for Android environments, enabling developers to perform complex audio and video editing operations programmatically. It integrates widely used encoding libraries such as x264, mp3lame, and fdk-aac, allowing it to support a broad range of media formats and transformations. The framework provides a wrapper around FFmpeg commands, making it easier to execute advanced media operations without directly handling low-level command syntax. It supports both synchronous and asynchronous execution, enabling developers to manage long-running media tasks efficiently within mobile applications. The system also includes features like hardware acceleration through MediaCodec, significantly improving performance on supported devices. Its design focuses on flexibility, allowing users to perform tasks such as transcoding, clipping, filtering, and compositing media with minimal overhead.

PlayerPro is a music composer and sound editor ( SoundTracker ) for MOD S3M XM IT UMX . Uses XI, Quicktime or SoundFonts. Currently runs on MacOS and OSX; playback engines also available for Windows and BeOS. Upcoming version 6 will support ALSA (Linux).

A free sound editor, DarkAudacity is the well known Audacity sound editor now with a darker more modern theme - and a few small tweaks. The audio engine underneath is the same audio engine. The same code powers it. Like Audacity it is completely free. It's not a cut down trial evaluation version. You can record and play sounds, edit sounds, apply audio effects and save what you create for ringtones, podcasts and more. DarkAudacity is Open Source, free for you to download and use on your PC. Audacity and DarkAudacity come from a community effort. Many people have contributed to the audio code. Because they are Open Source, anyone is allowed to read and modify the source code. DarkAudacity is a variation on the Audacity software, made possible because Audacity is Open Source.

Snd is a sound editor.

Digital audio restoration of CD quality audio wavefiles. Dehiss, declick and decrackle in a GUI environment. Formerly "Gnome Wave Cleaner".

A featureful SID-music creation tool (tracker) for the Commodore 64. It includes many advanced effects and tools like keyboard-tracking, tempo-programs/funktempo, gateoff-table-pointers, filter-shift, SID-export, executable-export, MIDI/XM conversion and MIDI-input hardware, etc., etc. NOTE: I left SourceForge for reasons not ethical to mention here. You can find me and my further work at these locations: http://hermit.sidrip.com http://csdb.dk/scener/?id=18806 https://github.com/hermitsoft/

Mp3 decoder to convert mp3 files into wav file. Works well on Linux, Windows and Android. Can perform fast fourier transforms on decoded audio data. Under research & development by WeaveBytes

Audio Tag Tool is a program to manage the tags in MP3 and Ogg Vorbis files. It can be used to edit individual tags, or to easily tag or rename hundreds of files at once, in any desired format. It can also create playlists.

MP3 Tag provides a quick and easy way to add ID3 tags to a large number of un-tagged MP3 sound files. It is console-based, initially developed for Linux.

This project develops an open source editor for Clavia Nord Modular and Micro Modular synthesizers.

Sweep is an audio editor and live playback tool. It supports PCM (WAV, AIFF etc.), Ogg Vorbis, Speex and MP3, with multichannel editing and LADSPA effects. Inside lives a pesky little virtual stylus called Scrubby who enjoys mixing around in your file

Advanced GTK+ Sequencer is intended to use for music composition. It features a piano roll, as well a synth, matrix editor, drum machine, soundfont2 player, mixer and an output panel. It's designed to be highly configurable, you may add effects to its effect chain, add or remove audio channels/pads. You may set up a fully functional network of engines, therefore exists a link editor for linking audio lines. In conjunction with ags you need a realtime kernel and alsa support. `ags` uses conditional locks to keep several threads in sync that's why you need at least a preemptible kernel.

Automatic music notation application for musicians and composers.

An mpeg 1/2/2.5 audio layer 1,2,3 frame level editor. Allows for cutting, copying, pasting of individual frames, correction of common (correctable) errors, removal of bad frames and more. Quite useful program for maintaining any mp3 collection.

AIFF-Tools will be a set of utilities to manage AIFF audio files, providing a library to read and write AIFFs and tools to cut, resample, amplificate, mix, write markers, etc. It aims to support all the features of AIFF (markers, comments, etc.).

Software for editing and playing VGM music

WavSplit splits large WAV files at given time positions. To find out split positions you can use any WAV player or editor with a time display.

Id3edit is an ID3 tag editor for the mp3 file format. Id3edit is command line driven, therefore it is very fast and efficient.

A music tracker that seeks to be 100% compatible with Impulse Tracker.

The main proupose of mgtracker is cut an MPEG audio file/stream in consecutive tracks. Also it can be used to get info, or only repair/clean the stream.