muffin_man97 wrote:My main trouble is with the filters now. I just can't really get them to do what I want.
I have a Radias as opposed to an R3, but I know that it may be confusing to see what your filter is doing at any one time - it's one of the most intertwined, maze-like parts of a patch as there can be lots of 'hidden' parameters elsewhere that can be unbeknowingly pulling it around from every angle.
Go back to basics. Initialise a patch, and set up a sawtooth as the oscillator waveform (if not already). Without doing anything else, turn the knob for the frequency cutoff of the filter - you should hear it sound duller/muffled when you turn it anti-clockwise, and brighter again as you go clockwise. This is the low-pass filter (LPF) - it allows (passes) low frequencies through the filter and then attenuates the higher frequencies depending on the cutoff. Increase the resonance parameter a bit, and then play with the frequency cutoff value again - you'll start to get a little 'bite' as you turn the knob. Increase the resonance more and more and this should become more obvious, eventually turning into a pitch-able whistle.
Other filter types include High-Pass (allows high frequencies to pass through and then attenuates low frequencies), and Band-Pass (this is a mixture of a low-pass and a high-pass which attenuates both high and low frequencies, allowing only a 'band' of middle frequencies to come through).
Play with the cutoff frequency and resonance for each filter type to get a feel for what they sound like and the way they act.
Once you've got the basics, trying using an LFO to 'modulate' (a fancy word for 'controlling' or 'animating') one of the filter's parameters, such as the cutoff frequency. LFOs apply ever-repeating cyclic changes to a parameter depending on the LFO's own waveform and modulation intensity.
Possibly the most confusing part of the filters could be the EG. An EG applies changes to a parameter in a 'one-shot' type manner for the duration that you hold down a note, as opposed to a repeated cyclic manner like the LFOs.
If you find your frequency cutoff knob is not doing what you want it to, it's most likely that the filter EG and/or the LFO are controlling the filter to a degree. You can decrease the intensity of the filter EG's action by turning down the filter EG Intensity knob to zero. If an LFO is also controlling the filter you will be able to turn down the modulation intensity in one of the menus.
This should give you manual control over the frequency cutoff again. Once you get a gist for LFOs and EGs and how they can animate (modulate) various parameters it'll be a breeze.
TheHighestTree, above, has done a quick 101 on EGs and their respective ADSR parameters, but the manual should have illustrations and descriptions on how they are controlled by you when you hit a note. The link I gave should also tell you more.
I know it's difficult to get your head around the new terminology and features when you're just learning. I remember when I got my first real synth (as opposed to a former Yamaha home keyboard!), it seemed a rat's maze, but keep persevering and give a little time to let each bit sink in.
