[LAD] What KvR didn´t understand.

[Vytautas Jancauskas]

This is completely off topic but are you mental?

On Mon, Jan 7, 2013 at 3:01 PM, Ove Karlsen <
ove.karlsen at paradoxuncreated.com> wrote:

> On 1/7/2013 1:57 PM, Ove Karlsen wrote:
>
>> What KvR didn´t understand 10 yrs ago, and still don´t understand.
>>
>> Why does digital synths often sound so bad? Either stale, or harsh etc.
>>
>> Let me tell you in complete truth and honesty, is has got nothing to do
>> with digital. It has something to do with the engineers making the
>> algorithms.
>>
>> When I was a newbie DSP engineer, the first thing I tried was making a
>> TB-303 filter. Which is what a lot of people do first. I talked to the
>> people on #musicdsp, and they had little clue, some had tried and said it
>> was difficult or impossible, some say they had succeded but their filters
>> didn´t sound too good.
>>
>> On a few days, not having touched code, since I was 12 years old, I did a
>> resonance filter, that screamed and shreaked. Some engineers in the KvR
>> forum, said it was a bad thing to do, because their job now got so much
>> more difficult.
>>
>> When in reality, it was not difficult at all. And this is typical for
>> those kinds of engineers. They don´t get into the algorithm. They don´t
>> understand what is going on. Instead very unecesary high-level theorems,
>> they try to fit into what is simple analog feedback paths.
>>
>> One of the guys even worked with supposedly professor for many years, and
>> they did not come up with anything good.
>>
>> They argue it is something to do with frequency-response, for instance,
>> why the analog filters sound the way they do, and it cannot completely be
>> done in digial.
>>
>> All this is just crazy trash.
>>
>> Later I actually looked at the schematics for the 303, and realized there
>> was just four feedback-paths with one negative feedback-path around. It is
>> as simple as that. That is all "analog vintage" synth-filters. There is
>> absolutely no obscurity going on, it is as simple as it can be.
>>
>> Knowing that analog has a certain headroom, and that components are a bit
>> inaccurate, and there is often some highpassing going on, due to the
>> frequency-response of the components, you can model that, VERY SIMPLY, and
>> without much cpu use. Some of the stuff released on KvR uses extreme cpu,
>> and even sounds bad.
>>
>> Try this ok, in your synth, and you will realizing that digital can sound
>> just as good as analog, and without the inaccuracies. And analog often has
>> characteristics you DON´T want. So it is even better.
>>
>> Released under The Beneficient Open-source licence. Please google it.
>> Since this licence allows for functions alone, to be released as opensource
>> you can make it a function, and use it alongside whatever else you use.
>>
>>
>> //licenced under The Beneficient Open-source Licence.
>>         // Osc lo-emph.
>>         b_lo = b_lo + ((-b_lo + b_v) * b_lfr); // for emulating the
>> analog-charateristic of more saturation in the low-freq. (due to saturated
>> buffers)
>>         b_v = b_v - b_lo;
>>         b_v = b_v + (b_lo * b_lgn);
>>
>>  // there was some earlier code here that was not intended in the paste.
>
>          if (i_ftype == 1) { // 24dB lowpass ("ladder")
>>             double b_rez = b_aflt5 - b_v; // sub = no attenuation with
>> rez.
>>             b_v = b_v - (b_rez*b_fres); // negative feedback for
>> resonance.
>>             b_v = b_v * b_off2; // gain offset
>>             b_v = b_v + ((fvar90-0.5)*2); // bias
>>             if (b_v > 1) {b_v = 1;} else if (b_v < -1) {b_v = -1;} // clip
>>
>>             //sat/soften clip.
>>             double b_vr = b_v; if (b_vr < 0) {b_vr = -b_vr;}
>>             b_vr = 1-b_vr;
>>             b_vr = pow(b_vr,fvar91*10); // something I tested at the
>> time, this is a filter from my synth "Abdullah", and work in progress.
>>             b_vr = 1-b_vr;
>>             if (b_v < 0) {b_vr = -b_vr;}
>>
>>             b_v = b_vr;
>>             b_v = b_v - ((fvar90-0.5)*2); // bias
>>             b_v = b_v / b_off2;
>>
>> // you can also do clipping at 0.0001 for instance, and mix, and get a
>> little resonance buildup, before resonance hits the audible range. A bit
>> similar to how some zero-cross distortion works.
>>
>>             b_aflt1 = b_aflt1 + ((-b_aflt1 + b_v) * b_fenva);
>>             b_aflt2 = b_aflt2 + ((-b_aflt2 + b_aflt1) * b_fenva);
>>             b_aflt3 = b_aflt3 + ((-b_aflt3 + b_aflt2) * b_fenva);
>>             b_aflt4 = b_aflt4 + ((-b_aflt4 + b_aflt3) * b_fenva);
>>             b_v = b_aflt4;
>>
>>             b_hp = b_hp + ((-b_hp + b_v) * b_fhp); // highpass to emulate
>> analog, and get nice resonance, and also remove DC.
>>             b_v = b_v - b_hp;
>>             b_aflt5 = b_v;
>>         }
>>
>>
>> That is the ultimate "analog" filter, completely digital, and without
>> inaccuracies, and ofcourse with perfect keytracking etc.
>>
>> Forget all the obfuscating arrogant atheist KvR-nerds. This is the real
>> deal.
>>
>> And all my DSP is just as perfect, and they never did anything of that
>> either.
>>
>> And Unix-philosophy is really close to my philosophy of "least
>> obscurity". So it would be natural for this to develop and etablish itself
>> on Linux. I was a "hacker" in my teens, and I guess many who have been into
>> hacking, and brilliant programming, really celebrates God, and ofcourse
>> comes to the same idea of least obcurity, which is also very much like
>> (non-idolaterous) religion.
>>
>> Instead ofcourse KvR bans the brilliant, who even talks about a
>> peacebringing religion, and peaceful meditation, according to Gods praises,
>> and the highest of intelligence, infinite human unfolding and rights, if
>> you wish. And  that is the incoherent idolater/faithless.
>>
>> Peace Be With You.
>>
>>
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