wwjd wrote: ↑
Sun May 16, 2021 7:53 am
Niowiad wrote: ↑
Sun May 16, 2021 12:19 am
I can't seem to wrap my head around the filter resonance behavior.
The resonant bump basically disappears past a certain point.
It can disappear sooner or later in the 2k-10k range, depending on the DRIVE
values (higher values will produce a stronger peak which will fade out later in the range, compared to a weaker one), but in any case it sounds like it fades out too soon.
Here is an example of a quite strong resonant peak, completely fading-out at around 7k-8k.
For anyone who is wondering... it just didn't start with the analyzer. I was simply trying to compare the Cherry and Korg plugins and immediately found out I couldn't get nearly close that very basic sound at 01:34
with the PS-20... which eventually led me to check out the spectrum analyzer and see what was going on.
I'm sure you are totally right, but I was able to get a close enough to the video for live cover play. I noted the 1st VFC peak and drive heavily affect the 2nd VCF tone output - i don't know anything about this synth or the real one and was just playing with everything. Was able to get close, then, many various other flavors that would work too.ps20.JPG
This was from the "NEW" default patch. Not saying I nailed it, nor that it sounds like a real ms20, just was fun to play with.
(ignore the horrible steppy sound of my controller knob) ((was much smoother with the mouse))
It probably was kind of an overstatement on my part to say it wasn't getting "nearly close" to that sound... your audio is definitely comparable to what I got too and I understand it could sure be considered close in some way. The overall character is somehow there, the resonance behavior although is quite different in some parts of the spectrum.
By saying I wasn't getting "nearly close" it was meant more as "nearly close to being indistinguishable", but sure it could be considered close enough in a general sense
I consider that specific played part having a "key range" in the 500-2000 Hz area... that range can be programmed to sound almost indistinguishable, but it gets sensibly different above and below the said range.
The resonant peak in your recording "dies" at 2k (which is the issue I reported earlier) and it's not your fault, whereas in the YouTube example it goes nearly up to 5k (but could have gone further if he just wanted to open the filter more). Same with the Korg demo.
As noted in my previous post, the PS-20 can definitely go past 2k if resonance is increased, but at that point it starts sounding far too aggressive/different in the "key" range (and below).
In order to sound right between the 500-2k range, that resonance amount ends up sounding exaggerated in the lower part (150-500 Hz) when it touches to the first few harmonics, compared to the YouTube video and the Korg demo.
Thanks to your post I also got to notice how the HPF resonance severely affects the LPF resonance.
I also don't have the hardware and I'm not sure what's up with that
And I have no way to know how closely the PS-20 relates to the specific unit Cherry must have used.
The PS-20 is very nice in many ways though, and Cherry is overall crushing it since they got in the business