Robin Gareus has just announced the latest release of x42-plugins, which is a collection of cross platform LV2 audio/MIDI plugins, currently featuring over 80 plugins from 11 repositories.

The x42-plugins collection consists of the following -

meters.lv2 Collection of audio-level meters tuna.lv2 Musical instrument tuner with strobe characteristics fil4.lv2 4 band parametric graphical EQ balance.lv2 Stereo conditioner convoLV2 Zero latency convolution sisco.lv2 Simple audio oscilloscope mixtri.lv2 Matrix mixer and trigger processor intended to be used with sisco.lv2 midifilter.lv2 MIDI event filters nodelay.lv2 Simple audio delay-line that also reports its delay as latency onsettrigger.lv2 Audio to MIDI converter currently intended for Bass/Kick-drums xfade.lv2 Audio-plugin for stereo cross-fading 2 x 2 input channels to 2 output channels

Since the last release at the end of last year, there has been a new addition to the line up, fil4.lv2. This is a 4 band parametric graphical EQ with High/Low shelfs and Hi/Lo Pass filters which is based on DSP from Fons Adriaensen's highly regarded fil-plugin. It is available in both mono and stereo variants and has a spectrum display plus waterfall FFT history built-in. The display also has vertical zoom.

Also of note is the addition of a BBC M6 (mid/side) meter to meters.lv2.

You can find x42-plugins over at Github, although this is intended for package maintainers. For end users using an audio orientated Linux distro, an update may soon be pushed through your package manager.