Scopes & Realtime Visualizers

• Alsa-Nyser cool scope from Raphael Francois
• Bomb an interactive a-life "visual-musical" instrument
• Cthugha "an oscilloscope on acid..."
• DireShow frequency analyzer with a nice SVGA interface
• Freq51 realtime spectrum analyzer, and a patch which indicates frequencies as musical note-names
• JAAA the JACK & ALSA Audio Analyser, an audio signal generator and spectrum analyser from Fons Adriaensen
• JXSpectrum and XSpectrum two more frequency analyzers
• Oscilloscope a DSSI plugin from Lars Luthman
• ScopeShapes oscilloscope that uses soundcard output to produce 2D/3D vector graphics
• SonaSound realtime music/sound visualization program from Niklas Werner
• Sonogram very nice audio visualization package from Christoph Lauer, requires Java2
• SoundMan another excellent audio visualization app
• Synaesthesia lightshow calculated from FFT and stereo positioning information
• Waterfall realtime spectrum analyzer for XMMS
• WMscope audio display applet for Window Maker or Afterstep
• YASS yet another scrolling scope, this one from Fons Adriaensen
• baudline excellent realtime frequency analyzer with varied displays
• eXtace a much-improved version of this scope/visualizer
• fluxus is "... a small realtime render engine for Linux that generates animation from sound", from Dave Griffiths of SpiralSynth fame
• jack_oscrolloscope realtime waveform viewer from Dominic Sacré
• kanalyzer KDE applet to display the spectrum or the time-domain signal from a soundcard
• sndpeek "... performs feature extraction on audio files or live audio input with real-time display of waveform, spectrum, and features", from the crew at the Princeton Soundlab
• xanalyser realtime frequency spectrum analyser for X, from Arvin Schnell