The Advanced Linux Sound Architecture is composed of several parts. The first is a fully modularized sound driver which supports module autoloading, devfs, isapnp autoconfiguration, and gives complete access to analog audio, digital audio, control, mixer, synthesizer, DSP, MIDI, and timer components of audio hardware. It also includes a fully-featured kernel-level sequencer, a full compatibility layer for OSS/Free applications, an object-oriented C library which covers and enhances the ALSA kernel driver functionality for applications (client/server, plugins, PCM sharing/multiplexing, PCM metering, etc.), an interactive configuration program for the driver, and some simple utilities for basic management.
AVChat is audio and video chat software based on Flash Communication Server with an easy to use interface. It supports real time audio/video communication with bandwidth control and automatic webcam and microphone detection, enhanced text chat with a language filter and bold/italic/color options, a users list with genre/camera/admin icons, private and public rooms, an admin section with log review and ban/kick by IP, a nick filter, and support for free and premium users. A PHP file is used for configuration options. Flash Communication Server is used for the text/audio/video streams.
Audacity is a cross-platform multitrack audio editor. It allows you to record sounds directly or to import Ogg, WAV, AIFF, AU, IRCAM, or MP3 files. It features a few simple effects, all of the editing features you should need, and unlimited undo. The audio I/O uses PortAudio, which fully supports OSS, Mac OS X CoreAudio, and Windows WMME, and can be compiled with support for ALSA and Jack.
Audio::Xmpcr is a Perl API to the XM PCR Satellite radio. It offers two different operating modes (direct and remote+daemon) via a single interface, continuous device polling for instant, accurate song listings, auto notification when songs change on any channel, and a few utility programs including a Web interface for remote control/listening to the radio via icecast, a stream ripper that divides songs up into properly-named wav files (for making MP3s), and a finder that searches channels for the song(s) wanted, and records just those.
Baudline is a time-frequency browser designed for scientific visualization of the spectral domain. Signal analysis is performed by Fourier, correlation, and raster transforms that create colorful spectrograms with vibrant detail. Conduct test and measurement experiments with the built in function generator, or play back audio files with a multitude of effects and filters. The baudline signal analyzer combines fast digital signal processing, versatile high speed displays, and continuous capture tools for hunting down and studying elusive signal characteristics.
The Java Media Framework (JMF) is an API for incorporating audio, video, and other time-based media into Java applications and applets. It is an optional package that extends the multimedia capabilities on the Java2 platform. The Blackdown JMF is a Performace Pack which includes native code in order to provide faster processing and tighter integration with Linux than the all-Java version.
BlogMatrix Sparks! is a streaming Internet radio program recorder and podcast receiver. Downloaded programs are converted (via Mplayer and LAME) into MP3s and stored in your media player (iTunes or Windows Media Player). It uses an interactive directory of thousands of radio stations and podcasts to help you find content. It runs on Windows, Macintosh OS 10.3, and Linux.
Boom Recorder is a software field audio-recorder. It can be used in combination with high-resolution audio hardware, intended to be used to record live stage and film set performances. It support 16, 24, and 32 bit sample formats, high sample frequencies, and 128 channel recording. It is able to decode time code signals that are fed to any audio channel, and will add this and other metadata as iXML in BWF (Broadcast Wave Format) and CAF (Core Audio Format) files.