SynthMakerNu Audio Science ·
If you where setting up a 3D representation of a waveform what would the Z axis represent ?
Z
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NothanUmber ·
? Usually you have only one amplitude value per time step so a 2d representation is sufficient. If you e.g. want to show a stereo signal in just one 3d graph (don't know why you would but let's suppose that's the case 😉 ) then you'd have two amplitude axis and one time axis. Don't know if that's what you wanted to hear thought...
Greetings, NothanUmber
skOre ·
hmm, maybe spectrum?
angstrom ·
time z-1 == previous buffer. as in: the 'current' wave buffer when finishedwith gets pushed into the 'previous' array. Drawn at z-1
all the array would be at relative z to the 'front' previous[1] would be z-1 previous[9] z-9
etc. it would create a 3d wave then
not that I have used SM's arrays or drawing functions yet!
Rellik ·
A 3d representation of a waveform?
Well, X is time, and Y is pressure/voltage/amplitude/sample value, etc. But Z? If you were going to use a Z axis, I would have to agree that the only thing I could think of would be for the Z axis to denote the position of the "ear", from left to right. It's not like there's any other fundamental property of a waveform besides its shape, which is 2-dimensional (the ear, after all, only hears in<->out motion, not other directional motion).
beno ·
Are you talking about a waterfall plot? Time versus Frequency versus Magnitude? Ben
lalo ·
spectrum?
skOre ·
Yeah, Spectrum.
Would look cool, wouldn't it? 😀
Nu Audio Science ·
No i'm just talking about a 3D wave display, We already have X + Y , But we need Z to make it 3D.
I'ts for an idea i have wanted to do for a long time and when i mentioned it at KVR i got scoffed at so it makes want to achieve it even more.
I hate somebody telling me something can't be done and the only reason they give is that it hasn't been done before 😉
lalo ·
skOre wrote: Yeah, Spectrum.
Would look cool, wouldn't it? 😀
yeah 🙂
it was an '?' not about spectrum...but about using the Z for spectrum 😀
Sk ·
You could properly represent FFT-spectrum by means of amplitude and phase. Say, X frequency, Y Amplitude, and Z phase.
Nu Audio Science ·
I thought about phase but if i was to displace one sound with another that would just be phase modulation (FM) wouldn't it ?
Tom7777 ·
Well in terms of 3d in a direct view Z would be how close or far it is so i would say a sharpness of the wave form when zoomed out its more rounded/smoothed or something similar maybe
Tom7777 ·
Or you could have it finetuned and with volume displacement where if its normal/close its at normal pitch on the normal X axis position and when zoomed out its higher on the x axis and at a slower pitch so it stretches the further it goes out
Rellik ·
Oh yeah... in the frequency domain, it WOULD be possible. In fact, it already exists 😀
Sk ·
Nu Audio Science wrote: I thought about phase but if i was to displace one sound with another that would just be phase modulation (FM) wouldn't it ?
Maybe we're not speaking the same language. 3d graph can be done but it's only a visual thing. If you want to obtain a "audio 3d", then this is quite senseless, because it is simply modulating one signal with another one. You can do it, if you want, but you don't get anything new.
Tom7777 ·
Well yes creating 3d in audio is very hard to do without a realtime 3d area and this could not be made using the current modules and so you would have to define values and filters acording to positions, a 3d scope however is much different, you could do something with z^1 and loads of them to fake it i guess.
Nu Audio Science ·
Oh well i guess the neverending search continues 🙂
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