WaveStorm has a new feature that allows waveforms saved from the wavetable creator to be used as LFO waveforms to modulate oscillator parameters.

This feature really unlocks modulation cycles to be more finely controlled, compared to the standard waveforms. The wavetable creator allows the standard waveforms to be blended with complex waveforms to keep the underlying structured modulation e.g. along a sine wave.

Let's look at an example.

Opening the wavetable creator and loading a wavetable, we can select a waveform of interest and then move it to the editing section using the target icon on the right, above the grid view. The store has a new wavetable bundle that unlocks over 300 wavetables, combining all the current wavetable In-App-Purchase packs into one, adding thousands of new waveforms.

Now the waveform can be edited as well as saved to the collection of waves using the save button.

Entering a name for the wave and saving, we can now access the waveforms from the waveform folder icon in the control bar.

The waveform collection is only accessible once a wave index is selected within the wavetable's grid view, e.g index 39 displayed above. This is because selecting a waveform from the collection will edit the selected indexes. Keep in mind that the blend control determines how much an incoming wave on a selected index will blend with that waveform. To completely replace the selected waveform indexes, a blend of 100 should be set.

Once we have saved waveforms in the collection, we can now use these in the LFOs of the synth section.

The LFO view now has the waveform icon that opens the waveform collection, as below.

Selecting a waveform from the collection loads it into the LFO. To remove it and return to the standard waveforms, the trash icon is used.

Continuing to select custom waveforms for each LFO as below.

In order to modify the parameters of the LFO, we can use the show more controls icon, which is present on all other synth components that have additional controls.

This reveals the LFOs cycle speed and amplitude controls. The cycle speed now includes an additional speed of 128 bars, allowing even slower modulation of a parameter. The amplitude sets the height of the modulation wave, which determines how far the wave moves within the modulation range, allowing movement in a smaller region than the set modulation depth. E.g a mod depth of 100 on the wavetable index control with a LFO amplitude of 0.5 would result in the modulation wave only moving within a range of 50, split this in two and the wavetable index will modulate within -25 and + 25 of its current value. The below image shows a wavetable index of 113, so this would modulate the index between 88 and 138 if the amplitude of the LFO was set to 0.8.

That's it for this post. This feature adds endless possibilities for modulating the oscillator parameters. I hope you enjoy and if you have any questions, get in touch via Twitter or system@sonicsector.co.uk.