Ecasound is a software package designed for multitrack audio processing. It can be used for simple tasks like audio playback, recording, and format conversions, as well as for multitrack effect processing, mixing, recording and signal recycling. It supports a wide range of audio inputs, outputs, and effect algorithms. Effects and audio objects can be combined in various ways, and their parameters can be controlled by operator objects like oscillators and MIDI-CCs. A versatile console-mode user interface is included in the package.
Sweep is an audio editor and live playback tool. It supports many music and voice formats including WAV, AIFF, Ogg Vorbis, Speex, and MP3, with multichannel editing and LADSPA effects plugins. Inside lives a pesky little virtual stylus called Scrubby who enjoys mixing around in your files.
Lava's jWave is a versatile set of packages for Java that allow you to easily create and process RIFF files, with a special emphasis on reading and writing Microsoft PCM .wav files. jWave was initially released as an integrated feature of Lava, a general-purpose class library for Java. By popular demand, it is distributed in its own bundle.
Xpand is a simple Python script with Glade GUI front-end for sox, cdparanoia, notlame, mpg123, and normalize. It uses the compand option in sox to adjust the dynamic range of music so the soft parts can be heard in a noisy environment, such as a car. The volume level can be normalized to a standard level so that music originally recorded at different levels will all have the same volume. Music can be read from an MP3, WAV file, or straight from a music CD and output to a MP3 or WAV file.
GTagger is an ID3 tag editor designed for easy and efficient usage. Features include directory listing, viewing and editing ID3 tags, converting ID3 tags into several versions, filename suggestions appropriated from tag information, live filename suggestion alteration while editing the ID3 tag, the ability to rename and delete files, and short cuts for every function.
Rumor is a realtime monophonic (with chords) MIDI keyboard to Lilypond converter. It receives MIDI events, quantizes them according to its metronome on the fly, and outputs intelligently handwritten-like corresponding Lilypond notation. Tempo, meter, key and other parameters can be set via commandline options. Rumor can use ALSA/OSS or emulate MIDI input with computer keyboard. It is scriptable with Guile. It has been tested on several major J. S. Bach organ pieces (see links to Mutopia in the documentation).
XO Wave is a digital audio workstation designed to meet the needs of audio and video professionals, with a focus on CD mastering and audio for video work. XO Wave provides professional-grade capabilities for manipulating audio, with a familiar and elegant interface. It supports direct recording from any Core Audio device (ALSA/Jack/OSS on Linux), importing and exporting files in a variety of formats (including songs from iTunes playlists), CD burning, multi-track editing, support for many Audio Units, and QuickTime synchronization and export.