VST Effects plugin

Delirion is in essence a Doppler shifter that works across three different frequency bands. Each band can work across multiple channels, allowing you to tweak the input signal to something reminiscent of a fever dream.

All of Delirions parameters can be automated for maximum control and flexibility.

Controls

There are quite some elements within Delirion's UI and while they will be explained here, it is encouraged to tweak through experimentation to discover some happy accidents.

By adjusting the frequency and speed controls of all individual bands you are able to create anything from a subtle chorus to microtonal harmonizations. Delirion works best on harmonically rich, sustained sounds.

Triangles

The three triangles represent - from left to right - the low, middle and high frequency bands. Each section has the same controls, but their operation is restricted to their own spectrum.

Odd & Even

Allows you to set the speed of the Doppler effect where the listeners position can be adjusted to move between half and twice the rate of the input signal. For multi channel signals, this speed is applied to the odd (left for a stereo signal) and even (right for a stereo signal).

When the speed is set to 0 the effect is bypassed.

Link

Synchronizes the speed of all Doppler instances to the speed of the odd channel. This is recommended for the low frequency band as keeping it in the center provides a solid ground for your track. Then again, a little stereo weirdness might not hurt...

Modifiers

There is further interest to be had by use of the following buttons:

• Invert to adjust the direction of the Doppler effect
• Freeze freezes the sound of the middle frequency band, like a diffuse reverb forever repeating the sound audible at the moment it was enabled
• Sync synchronizes the effected signal with the input signal, keeping the drift that is otherwise inherent by the slowdown of the Doppler effect in time with the source. Works only on inverted signal (as it has a downward shift only)

By default, Invert is enabled and provides a downward shift. This works instantaneously on an incoming signal. When invert is disabled, an upwards shift is provided. This introduces a delay* as the plugin needs to record the input signal and as such this works best on long sustained sounds.

*The time where the inverted effect starts becoming audible (after the sequencer first starts running) is synced to the tempo and time signature of the host to keep the effect in time.

Mix controls

The last two dials are provided for you to create an interesting blend of sounds:

• Bottom applies wave shaping to the lower frequency band
• Mix controls the dry/wet mix of the plugin

Through use of the Bottom-control you can subtly distort the lower frequencies, adding weight (and a more upsetting dream-like sound) to the overall effect.

By controlling the dry/wet mix you can control how much of the input signal is blended with the effected signal.

Blending in some of the input signal allows you to use the effected sound to create minor pitch deviations or deviations that complement the input, keeping your compositions harmony in check.