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Comments
That's really close to what I was thinking of...
But, dam it.... Now I want to buy it, and it's $20
https://apps.apple.com/us/app/wavegenerator/id554998576
I think I'll have to wait on this because getting StepPolyArp Unit is my first priority.
I like to detune, phase invert, phase-offset/adjust, fold, add, subtract and multiply basic single cycle waves with each other.
Those few features alone create a wide variety of new waveforms especially if one of them is also used to cross-modulate some of the parameters (frequency, amplitude, phase etc.).
I just want to hear what it sounds like, if I had the ability to build up long waveforms from many very small waveforms.
Does the PPG WaveGenerator let you include pulse waves in the chain that you can designate to have their pause width modulated by using an LFO?
Speaking of that... What about doing the same sort of thing with an LFO generator?
As in... Chaining together a cycle by cycle sequence of different waveform shapes to make an LFO for modulating other parameters.
Or maybe... A screen where you can finger-draw in a custom "envelope" of adjustable length, and used that to modulate PWM and other parameters. That might sound cool.... You could use that as a filter envelope instead of a standard ADSR.
Nope, all waves in PPG WaveGenerator are static but you can draw different pulse width-shapes in the wave slots to simulate pulse-width modulation.
To do what you want to do in the example you would need a synth that can automate switching of the waveform using a step-sequencer where one of the wave-forms is a pulse wave oscillator. (or a multi oscillator synth where the 'mixer' is automated, ie. one oscillator with a saw wave, one with a noise wave and another with a pulse-wave).
Well, you could always play around with SunVox and use a hand-drawn sample as the modulation source
SunVox can do this too, and well, when Drambo drops it can do this too...
Ditto
Cool.... Thanks for showing me this. Not the shape I would have expected.
Maybe waveform shapes in of themselves, don't have an extensive degree of power to change the character of a sound?
But why then does that PPG App have such a diverse range of sound creation?
I've had the theory in my head a while that it's the way a sound evolves over time that give it the most interest. I think it must have something to do with human hearing having evolved to understand speech. Speech are continuously evolving kinds of sounds.
People couldn't make many words with different meanings if they could only produce a series of unchanging vocal tones.. one tone at a time.
That helps me understand these concepts a lot better. Thank you!
I found this video on Youtube also.. (below)
What I'm seeing verifies what you said, changing waveform shape does not necessarily mean a great deal of change in the character of the sound for the listener.
What I'm seeing is that things like modulating pulse width, and adding higher frequency harmonics that modulate the lower frequency "base waveform", appear to result in more interesting sounds.
Perhaps it's fair to say that creating interesting synth sounds, is more about finding ways to introduce different varieties of "evolving" harmonics into a "base wave", than it is about the base wave itself.
Presuming the above is true, I'd hypothesize that when wavetable type synthesis is used to rapidly change "Base" waveforms from one frequency cycle to the next. The result for the listener is essentially very similar to "traditional synthesis".
The reason (hypothetically) is because the human ear and auditory neurology, have a resolution limit for the shortness of sound length that the brain can resolve into information about the sound.
This would be identical to how a movie is built up of a series of changing still frames. But once the frame rate reaches 30 frames per second, the human eye and visual cortex perceive a smooth flowing motion, even though the reality is a series of quickly changing still frames. Upping the frame rate to 1000 frames per second makes no difference, because the human mind just can't process that much information as individual chunks.
The same could be true with sound.
I think the basic premise I'm working out is that wavetable synthesis or granular are capable of producing unique sounds each with their own respective intrinsic character. But so are "traditional" synths that utilize multiple waveforms and any manner of parameter controls.
The point of the premise, is that both utilize their own respective methodologies for "evolving" the waveform in various ways over time.
Thus the primary features responsible for synthesizing any variety of sound with a quality useful for music, are going to be the features the synth uses to change the waveform over time.
Unchanging sounds will tend to be less interesting than sounds that evolve in character over time.
So I'm loosing interest in the idea of combining mini waveforms, in favor of being more interested in ideas about the ways waveforms can be changed over time in creative ways.
Not saying that a subtractive synths with oscillators can come up with uniquely wavetable like type sounds....
Just saying that both synthesis types use methods for evolving waveforms, and I think making good sounding synthesizers are really about coming up with clever ways to produce waveforms that will evolve over time by some kinds of methodologies.
This interests me because I want to think about all the methodologies imaginable that might be used to evolve a waveform.
I agree.
And then one could say music itself is just a combining of instruments all modulated in creative ways, including vocals.
But are there any here-as-of-yet unexplored methodologies for modulating synthesized sounds?
It's this train of thought that's interesting me (at this moment).
For example... instead of a plate reverb. What happens if you put an underwater speaker at one end of a water filled tube and an underwater microphone at the other end. Make the positions of the both the speaker and the microphone adjustable by mechanical servos. Run a waveform through it and use the servos to modulate the distance between the speaker and the mic.
What might that sound like? What might that sound like if you mixed the output of that device with other kinds of sound generators?
I think stuff like that is interesting.