Breather

The Breather VST plugin was developed to be a cyclically sweeping filter effect, useful for adding unpredictably swooshy noises to your compositions.
Breather drives up to four independent, parallel filters in either lowpass, highpass, bandpass, or notch mode whose center frequencies shift in a cyclic pattern at the specified tempo, randomly moving between the specified minimum and maximum frequencies. After the pattern repeats for a specified number of times, a new pattern is generated.
When Sync is set to "Host", Breather synchronizes itself to the tempo of the VST host app, and if the Steps and Div controls are set properly, it will "breathe on the beat". When Sync is "Internal", Breather will "free-run" according to its Tempo control instead of syncing with the host.
The Steps and Div controls effectively set the time signature of the cycle: Div of "4th" and Steps of 3 are 3/4 time, etc. The Count control determines how many times the cycle is repeated before changing.
Each input channel is routed independently through the filters to the corresponding output channel. The filters sweep randomly between the specified minimum and maximum frequencies; with more filters enabled via the Live control, each filter sweeps through its own pattern. This may best be appreciated with the filters set to bandpass mode. Higher resonance settings will make the filter more "squeaky", to the point of self-oscillation at extreme settings.
At each step, the filter begins to sweep its cutoff frequency in a curve which starts off fast and slows as it approaches its target frequency. The Sweep control sets the overall sweep speed.System requirementsVST Host