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.

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.

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

Snd is a sound editor.

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/

A SoundFont editor and other software for editing, managing and sharing sample based MIDI instrument files for computer music composition. Support for other formats is planned.

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

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

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

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.

ABC is a text-based music notation language. This project aims to promote the ABC music notation language by providing cross-platform, open-source tools for manipulating, displaying and playing (via MIDI) ABC files. This project is here for historic reasons and there is not too much activity now. The abcmidi project is updated more frequently.

Fennec is a high quality (64-bit) media player/converter. With batch converting, joining, ripping, tag editing + multichannel support, media library, skins, DSP effects, visualizations, multi-channel equalizer and a completely new slide based interface... It can play/convert nearly 100 media file formats (inc. ogg, flac, mp3, mpc, mp4, flv, ape, wv...). Additional features including: automatic album art detection, media library, media file browser, quick search...

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.

This application's purpose in life is to take a wave file and break it up into multiple wave files. It makes a clean break at the correct position to burn the files to an audio cd without any dead air between the tracks.

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.

Buzztrax (formerly known as Buzztard) is a music production environment, based on a very modular approach taking many concepts from trackers a step further. It runs under Linux and is compatible to the windows only and close source software Buzz. The backend is using GStreamer as a multimedia framework. It can use Alsa, Jack, PulseAudio and other audio interfaces.

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

Software for editing and playing VGM music

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.).

Modular portable graphical based music editor. A new concept loosely based on the tracker-interface. Aimed to be used by both amatours and serious composers. Status for AmigaOS is stable, status for Unix is pre-alpha.

StirMark for Audio provides different audio signal modification functions