If you have experience with analog synthesis you will likely be very familiar with the notion of manipulating a filter’s cutoff frequency with an LFO to give dynamism to the timbre of, for example, a saw tooth wave oscillatior. What I’d like to do is use an LFO and a filter to do the same to an audio track in ardour. But what I’ve tried so far doesn’t work. Maybe someone can advise?
I have an appropriate filter set up on a track, and as I experiment with the filter’s cutoff frequency I am getting exactly the kind of filter effect I am interested in. In a sense I want to automate this parameter, not with manual input or with drawn lines but rather with a sine wave, like that would be produced by an LFO. (Ultimately I’d want to use automation to control the frequency of the LFO, but a fixed frequency would be a huge step in the right direction).
However when I install the plugin called “LFO” that came with my Ardour installation as a plugin of that audio channel, it just shuts off the output; the output of the LFO seems to be stuck at 0.0 no matter how I manipulate the controls, but don’t know what correct operation is supposed to look like.
I also tried moving the LFO plugin to a separate buss but could not make that work either.
Can anyone advise? Should I be able to do this? Thanks!