The Snack sound extension adds commands for sound play/record and sound visualization, e.g. waveforms and spectrograms. It supports in- memory sound objects, file based audio, streaming audio, WAV, AU, AIFF, and MP3 file formats, synchronous and asynchronous playback. The visualization canvas item types update in real-time and can output postscript. New commands and file formats can be added using the Snack C-API.
Sonic Visualiser is an application for viewing and analysing the contents of music audio files, containing advanced waveform and spectrogram viewers as well as editors for many sorts of audio annotations. It supports sophisticated audio selection, looping, and playback features, as well as the Vamp audio feature extraction plugin format.
Speex is a patent-free compression format designed especially for speech. It is specialized for voice communications at low bit-rates in the 2-45 kbps range. Possible applications include Voice over IP (VoIP), Internet audio streaming, audio books, and archiving of speech data (e.g. voice mail).
Studycard Studio Lite is a program to create and memorize multimedia flashcards, tests, and tutorials, including picture and sound identification. It is meant for educators, students, or anyone who has something to memorize. Students can create and study their own flashcards and track their progress. Educators can create quizzes or flashcards for their students.
Swami is an instrument patch file editor using SoundFont files that allows you to create and distribute instruments from audio samples used for composing music. It uses FluidSynth, a software synthesizer, which has real time effect control, support for modulators, and routable audio via JACK. This project supersedes the Smurf SoundFont Editor, and is an entire object-oriented rewrite of it. The supporting libraries are GUI-independant and can be used in your own programs for doing SoundFont manipulation.
Switch is an easy-to-use sound file converter which can convert audio files from many sources into MP3 or WAV format. A variety of different audio file formats are supported for input, including WMA, MOV, and AIFF formats. MPEG Layer-3 encoding is done using the LAME codec, and provides complete control over mode and bitrate selection. Wave encoding allows the user to cconfigure encoding technique, bit rate, sampling rate, and number of channels. It can also play tracks prior to conversion.
Synergy is a tiny Cocoa application for Mac OS X 10.2 (and later) that puts three buttons to control iTunes in your menubar: previous track, next track, and play/pause. It also provides you with visual feedback about the currently playing tune and allows you to control iTunes via system-wide hot key combinations. These features provide a very fast way of skipping between songs when using the keyboard or the mouse, without having to switch to iTunes or access its Dock menu.