| Page | Description | Release Date | Tags |
| Alsa-Nyser | Real-time sound spectrum display | 2002 | | | | | | | | | |
| baudline | Realtime frequency analyzer with varied displays. Uses JACK | 2010-07-21 | | | | | | | | | |
| ebumeter | metering according to the EBU R-128 recommendation. Uses JACK | | | | | | | | | | |
| Freq51 | realtime spectrum analyzer, and a patch which indicates frequencies as musical note-names | | | | | | | | | | |
| jack_oscrolloscope | realtime waveform viewer | 2008-09-18 | | | | | | | | | |
| japa | 'perceptual' or 'psychoacoustic' audio spectrum analyser | 2010-03-15 | | | | | | | | | |
| jkmeter | level meter based on the k-system | 2011-06-15 | | | | | | | | | |
| Oscilloscope | LV2 scope plugin with two channels, controllable trigger, time resolution, separate amplification and DC offset | | | | | | | | | | |
| YASS | yet another scrolling scope | | | | | | | | | | |
