I would totally dig this. Does it sounds less nasally pitched down?
On Aug 22, 2014 8:23 AM, "Ian Sannar" <ian.san...@gmail.com> wrote:
> That code is actually used in a project I made. It was called Growl_2. I
> have a demo of what it sounds like with mouth at about 12 or so. Using that
> kind of FM.
> This code produces very wet or vocal growls, and is far simpler to use
> than Zyn. Much better for the beginner. Plus, the FM mod wave produced by
> this took me days of experimentation with waveshaping the chirp to get
> something similar sounding, and even then this code still produced a
> cleaner sound.
>
> https://soundcloud.com/cubician/growl2-test
> I can include a copy of the very simple VSTi for comparing purposes.
> I've made this, It works, it's extremely simple and sounds sick.
> I'm just wanting to make a port to LMMS.
>
>
> On Fri, Aug 22, 2014 at 6:31 AM, Tres Finocchiaro <
> tres.finocchi...@gmail.com> wrote:
>
>> > What is the purpose of the wavetable generator?
>>
>> I'm curious too as to the limitations of our existing synths for growls
>> and whether or not we can leverage/enhance what we already have rather than
>> adding a new one.
>>
>> - tres.finocchi...@gmail.com
>>
>>
>> On Fri, Aug 22, 2014 at 8:28 AM, Vesa <dii....@nbl.fi> wrote:
>>
>>> On 08/22/2014 09:17 AM, Ian Sannar wrote:
>>> > I have this idea for a Dubstep Growl Synth.
>>> > I've made the basic wavetable generator in C#.
>>> > I moved it over to ruby and made it a VSTi in FlowStone.
>>>
>>> What is the purpose of the wavetable generator? We already have a
>>> wavetable generator which generates mipmaps for bandlimited waveforms.
>>> Although we don't generate them live anymore, and instead provide the
>>> wavetables as pre-generated binary files.
>>>
>>> > It's a basic FM synth. Two waveforms. One waveform is the basic
>>> > multi-osc, like from TripleOscillator. The second osc is a wavetable.
>>> > Osc 2 is a frequency modulation oscillator, and oscillates Osc 1.
>>>
>>> Seems quite specific and limited for a whole synth... But if you want to
>>> code it, go right ahead. It's pretty easy to write synths for LMMS.
>>>
>>> > Osc 2 is generated dynamically. A knob controls the wavetable position.
>>> >
>>> > This psuedo-code generates Osc 2.
>>> >
>>> > float[] GenerateOsc2(int wavetableQuality, int sampleRate, float mouth)
>>> > {
>>> > step = 1.0 / sampleRate;
>>> > wavetable = new float[wavetableQuality];
>>> > for (int i = 0; i < 1; i += step)
>>> > {
>>> > position = 1 - i;
>>> > ampEnv = (float)(1 / Math.Pow(position, 2));
>>> > wavetable[i * SampleRate] = -(float)Math.Sin((position *
>>> > Math.PI * (2 * mouth))) / ampEnv;
>>> > }
>>> > return wavetable;
>>> > }
>>>
>>> If this is only called once when the synth is initialized, then it's
>>> probably fine. Otherwise there will be problems...
>>>
>>> > The FM Modulation is your average Frequency Out = Frequency In + (Mod
>>> > Osc * FM Gain) function.
>>>
>>> Not a good idea. While writing Monstro, I learned that you won't get a
>>> "proper" FM sound (or what you probably would recognize as "FM sound")
>>> by doing actual FM.
>>>
>>> Doing actual FM will cause pitch drift, which makes the whole synth
>>> sound out of tune. What you want to do is use phase modulation to
>>> approximate FM, this gives the recognizable FM sound and keeps the pitch
>>> constant.
>>>
>>>
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>>
>>
>>
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>
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