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.
Ecawave is a simple graphical audio file editor. The user-interface is based on Qt libraries, while almost all audio functionality is taken directly from ecasound libraries. As Ecawave is designed for editing large audio files, all processing is done direct-to-disk. Simple waveform caching is used to speed up file operations. Ecawave supports all audio file formats and effect algorithms provided by ecasound libraries. This includes OSS, ALSA, aRts, over 20 file formats, over 30 effect types, LADSPA plugins, and multi-operator effect presets.
Efone is a distributed internet phone system. It features a voice sending/receiving client (an internet phone) and a central server (administered via the Web) where users' information (name, nick, password, current IP) is stored. It resembles a combination of ICQ and Internet phone.
ELE is a realtime audio effect program. Effects have low latency, and are suitable for live guitar or vocals. Chaining of effects is possible, and feedbacking effect chains are allowed. ELE supports looping and synchronization of PCM WAV files, and you can even record sample loops on-the-fly.
Emacspeak is the first full-fledged speech output system that will allow someone who cannot see to work directly on a UNIX system. Emacspeak is built on top of Emacs. Once you start emacs with emacspeak loaded, you get spoken feedback for everything you do. Your mileage will vary depending on how well you can use Emacs.
empegify is a networkable system for creating MP3s. It is designed so that you can perform the ripping on one set of machines, the encoding on another, storing the data to a final machine. It features CDDB support and maintainable code. It also includes a simple Web interface for easy monitoring.