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by Benoit Bouthillette (benbou92)
Size: 66 KB
License: GNU Free Documentation License
Submitted: 2020-12-06 04:14:03
Updated: 2020-12-06 18:13:00
Popularity:  98   3
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Name: Frequency LFO demo with Xpressive.xpf Download

This preset is a demo of how to make frequency LFO function with Xpressive.
This plugin (in LMMS 1.3.0 only) uses mathematical functions to generate waveforms.
The function in the preset is "sinew((t+A2/(4*pi*A1)sinew(2*A1*t))*f)" at O1
where "t" is the time in second,
"f" is the frequency number coming from piano keys
sinew is a sine wave fonction
A1 and A2 are constants that you can vary with the right knobs
A1 is frequency of LFO
A2 is amplitude of LFO

Beware: if you put A1 = 0, the function is going to disappear, because this constant is in denominator at one place. Instead, just put A2 = 0.

you should replace multiplications with t by using integrate function.
try this:
sinew((t+A2/(4*pi*A1)sinew(integrate(2*A1)))*f)Posted by: kapandaria on 2021-02-03 23:04:27
btw, I hope you took into consideration that sinew has a period of 1, not period of 2*pi. so I do not understand what pi is doing in your function. btw, I am happy that you liked my pluginPosted by: kapandaria on 2021-02-03 23:07:22
and by period, I mean wavelengthPosted by: kapandaria on 2021-02-03 23:08:53