The chord pluck from these two david guetta tracks sounds like "rubber" - dont know how to explain.. anyone know how to make it?
I've been looking everywhere for answers
That is a standard sort of pluck....nothing special at all. Sounds like a saw wave for the oscillator.
Then use an ADSR envelope to control a low pass filter. Set the attack, sustain, and release of the envelope all to zero.
Then tweak these values to tweak the sound to your liking -envelope decay time -filter cutoff point -envelope influence of filter (this can be call different things in different synths).
Then when all is said and done, you need to apply the standard spacial effects of reverb, chorus, and possibly mild delay.
I use freeware synth TyrellN6 for all my plucks, and you should too :)
If you are lost as far as my terminology went, spend 10 minutes an watch my intro video...