Knocktonal is a note-based resonance amplifier that allows users to increase (or decrease) resonance as well as the corresponding harmonic overtones. Simply put, Knocktonal lets you tune your drums with an EQ without having to re-pitch the samples.
This can be quite useful, as a destructive pitch change or pitch shift often negatively affects the tonality of the sound. This may include unwanted amplification of transients, texture, attack and decay of sounds.
Knocktonal allows you to control these resonant boosts/cuts statically or dynamically via automation or MIDI input, the latter of which can create an incredibly unique melodic pitch boost. Knocktonal can also be used to turn simple drum sounds like short kicks into long-tailed 808s by narrowing the Q resonance control (#10 in the plugin overview).
SUBTRACTIVE EQ:
The Knocktonal subtractive EQ section is designed to remove any unwanted resonant frequencies that pre-exist in the audio you’re working with. This is useful for achieving a “clean slate” before amplifying any new resonances. Like the plug-in’s additive resonance section, the subtractive EQ can be controlled in a number of ways. First, statically, by simply setting the note and leaving it. This is useful for instantaneous drum sounds that are the same throughout the performance. The subtractive EQ can also be controlled dynamically for sounds with shifting resonance, such as melodic performances. This can be done in two ways. First, by using automation, and second, by sending a MIDI signal to MIDI channel 2 of the plugin.
RESONANCE EQ:
The resonant EQ section is where the power of Knocktonal really shines. This is the main place where the usage will take place. The resonant equalizer is designed to affect the root note and all accompanying harmonic overtones, both odd and even. You can also set the resonant EQ to octave mode by deactivating the Overtones button, which allows you to control all octaves of the root note. Like the subtractive EQ, the additive resonant EQ can be controlled statically or dynamically via automation or MIDI input.

