I am creating a song using the mod_sine synth. I am using mod_sine because I want the oscillation effect, but I see in the documentation that a low pass filter is applied to the sound by default. I don’t want the low pass filter on the sound, so I am wondering if 1.) there is a way to get rid of the filter, 2.) if not, is there a sound similar to that without a low pass filter or 3.) is the raw code behind the mod_sine synth available and can I access it to edit it myself?
I believe all built-in synths have low pass filters attached. Are you able to just set the cutoff to the maximum of 130? That should effectively remove it for pretty much all audible frequencies.
If you really want to remove the filter completely, it is possible to write external synths, using SuperCollider, but it’s quite a bit more involved.
You can probably find some examples if you search in these forums, or look at the Sonic Pi source code: the SuperCollider synths/fx are here, but most of them are still in the old Overtone format, here.