Window manager for Xfce, it handles the placement of windows on the screen.

Garcon is a freedesktop.org compliant menu implementation based on GLib and GIO. It was started as a complete rewrite of the former Xfce menu library called libxfce4menu, which, in contrast to garcon, was lacking menu merging features essential for loading menus modified with menu editors.

The Verve plugin provides a comfortable command line for the Xfce panel. It supports several features, such as:

• Opens URLs, e-mail addresses, directories, and programs

• Command history

• Auto-completion (including command history)

• Focus grabbing via D-BUS (so you can bind a shortcut to it)

• Custom input field width

Libxfce4windowing is an abstraction library that attempts to present windowing concepts (screens, toplevel windows, workspaces, etc.) in a windowing-system-independent manner.

Xfce4-dict allows you to search different kinds of dictionary services for words or phrases and shows you the result. Currently you can query a Dict server (RFC 2229), any online dictionary service by opening a web browser or search for words using the aspell/ispell program.

xfce4-dict contains a stand-alone application called “xfce4-dict” and a panel plugin for the Xfce panel.

Xfce is a lightweight desktop environment. It aims to be fast and low on system resources, while still being visually appealing and user friendly.

The Thunar Archive Plugin allows you to create and extract archive files using the file context menus in the Thunar file manager.

Clipman is a clipboard manager for Xfce. It keeps the clipboard contents around while it is usually lost when you close an application. It is able to handle text and images, and has a feature to execute actions on specific text by matching them against regular expressions.

Xfig is an interactive drawing tool which runs under X Window System. In xfig, figures may be drawn using objects such as circles, boxes, lines, spline curves, text, etc. It is also possible to import images in formats such as GIF, JPEG, EPSF (PostScript), etc. Those objects can be created, deleted, moved or modified. Attributes such as colors or line styles can be selected in various ways. For text, 35 fonts are available.

Fig2dev is a set of tools for creating TeX documents with graphics which are portable, in the sense that they can be printed in a wide variety of environments.

Opus is a royalty-free, highly versatile audio codec. Opus-tools provide command line utilities for creating, inspecting and decoding .opus files.

The libopusenc libraries provide a high-level API for encoding Opus files and streams.

SpeexDSP is a DSP (Digital Signal Processing) library based on work from the speex codec.

Kate is an overlay codec, originally designed for karaoke and text, that can be multiplixed in Ogg. Text and images can be carried by a Kate stream, and animated. Most of the time, this would be multiplexed with audio/video to carry subtitles, song lyrics (with or without karaoke data), etc., but doesn't have to be.

Series of curves (splines, segments, etc.) may be attached to various properties (text position, font size, etc.) to create animated overlays. This allows scrolling or fading text to be defined. This can even be used to draw arbitrary shapes, so hand drawing can also be represented by a Kate stream.

Libao is a cross-platform audio library that allows programs to output audio using a simple API on a wide variety of platforms. It currently supports:

1. Null output (handy for testing without a sound device),

2. WAV files,

3. AU files,

4. RAW files,

5. OSS (Open Sound System, used on Linux and FreeBSD),

6. ALSA (Advanced Linux Sound Architecture),

7. aRts (Analog RealTime Synth, used by KDE),

8. PulseAudio (next generation GNOME sound server),

9. esd (EsounD or Enlightened Sound Daemon),

10. Mac OS X,

11. Windows (98 and later),

12. AIX,

13. Sun/NetBSD/OpenBSD,

14. IRIX,

15. NAS (Network Audio Server),

16. RoarAudio (Modern, multi-OS, networked Sound System),

17. OpenBSD's sndio.

The libtheora library implements the ogg theora video format, a fully open, non-proprietary, patent-and-royalty-free, general-purpose compressed video format.

The opusfile library provides seeking, decode, and playback of Opus streams in the Ogg container (.opus files) including over http(s) on posix and windows systems.

Ogg vorbis is a non-proprietary, patent-and-royalty-free, general-purpose compressed audio format.

The package vorbis-tools contains ogg123, an ogg vorbis command line audio player; oggenc, the ogg vorbis encoder; oggdec, a simple, portable command line decoder (to wav and raw); ogginfo, to obtain information (tags, bitrate, length, etc.) about an ogg vorbis file.

Opus is a totally open, royalty-free, highly versatile audio codec. Opus is unmatched for interactive speech and music transmission over the Internet, but is also intended for storage and streaming applications. It is standardized by the Internet Engineering Task Force (IETF) as RFC 6716 which incorporated technology from Skype's SILK codec and Xiph.Org's CELT codec.

Libshout is a library for communicating with and sending data to an icecast server. It handles the socket connection, the timing of the data, and prevents bad data from getting to the icecast server.

GNU Speex is a patent-free audio compression codec specially designed for speech. It is well-adapted to internet applications, such as VoIP. It features compression of different bands in the same bitstream, intensity stereo encoding, and voice activity detection.

Icecast is a streaming media server which currently supports Ogg (Vorbis and Theora), Opus, WebM and MP3 audio streams. It can be used to create an Internet radio station or a privately running jukebox and many things in between.

The libvorbis library implements the ogg vorbis audio format, a fully open, non-proprietary, patent-and-royalty-free, general-purpose compressed audio format for mid to high quality (8kHz-48.0kHz, 16+ bit, polyphonic) audio and music at fixed and variable bitrates from 16 to 128 kbps/channel.

RNNoise is a noise suppression library based on a recurrent neural network. The algorithm is described in Jean-Marc Valin's paper A Hybrid DSP/Deep Learning Approach to Real-Time Full-Band Speech Enhancement.