back with spectrum analisis!

[Linvincible]

Hello everybody,

I already tuned the SM spectrum analyser to look a bit different a while ago.
Now I'm onto a 3 dimension input spectrum vis.
What I want to achieve:
on the X axis: time
on the Y axis: frenquence
brightness: power on that frequence

doing a scrolling effect to the left is easy, that would be the flowfield
now I need a vertical bar on the right of the screen to react to the frequencies sensed
then the colormap would take care of the brightness of dots

I tried a bit already, but I'm not happy with what I did
first I didn't find a proper color map strategy
and I don't know haw do do this V line that would react without moving to the different frequencies

has anyone got an idea on how to do this?

I found an example of what I want to do in an already existing program, called spectrogram edited by visualizationsoftware
but it's really too much for what I want to do with it and there is no full screen mode
I am sure it's possible to imitate this vis with G-force!

here is the link with pictures that explain a lot better than I do ;o)
http://www.visualizationsoftware.com/gram.html

thanks for the help ;o)

[Linvincible]

well, with a bit of re-thinking here's what I came up with

waveshape:


Aspc=0,
Stps=40,
ConB=1,

A0="0.1", // Height scale
A1="3 + rnd( 3 )", // Thickness

Y0=" -0.95 " ,
X0=" 1-A0 * s * (fft(0.025)) ",


Y1=" -0.9 " ,
X1=" 1-A0 * s * (fft(0.05)) ",


Y2=" -0.85 " ,
X2=" 1-A0 * s * (fft(0,075)) ",


Y3=" -0.8 " ,
X3=" 1-A0 * s * (fft(0.1)) ",


Y4=" -0.75 " ,
X4=" 1-A0 * s * (fft(0.125)) ",


Y5=" -0.7 " ,
X5=" 1-A0 * s * (fft(0.15)) ",


Y6=" -0.65 " ,
X6=" 1-A0 * s * (fft(0.175)) ",


Y7=" -0.6 " ,
X7=" 1-A0 * s * (fft(0.2)) ",


Y8=" -0.55 " ,
X8=" 1-A0 * s * (fft(0.225)) ",


Y9=" -0.5 " ,
X9=" 1-A0 * s * (fft(0.25)) ",


Y10=" -0.45 " ,
X10=" 1-A0 * s * (fft (0.275)) ",


Y11=" -0.4 " ,
X11=" 1-A0 * s * (fft (0.35)) ",


Y12=" -0.35 " ,
X12=" 1-A0 * s * (fft (0.325)) ",


Y13=" -0.3 " ,
X13=" 1-A0 * s * (fft (0.35)) ",


Y14=" -0.25 " ,
X14=" 1-A0 * s * (fft (0.375)) ",


Y15=" -0.2 " ,
X15=" 1-A0 * s * (fft (0.4)) ",


Y16=" -0.15 " ,
X16=" 1-A0 * s * (fft (0.425)) ",


Y17=" -0.1 " ,
X17=" 1-A0 * s * (fft (0.45)) ",


Y18=" -0.05 " ,
X18=" 1-A0 * s * (fft (0.475)) ",


Y19=" 0.0 " ,
X19=" 1-A0 * s * (fft (0.5)) ",


Y20=" 0.05 " ,
X20=" 1-A0 * s * (fft(0.525)) ",


Y21=" 0.1 " ,
X21=" 1-A0 * s * (fft(0.55)) ",


Y22=" 0.15 " ,
X22=" 1-A0 * s * (fft(0.575)) ",


Y23=" 0.2 " ,
X23=" 1-A0 * s * (fft(0.6)) ",


Y24=" 0.25 " ,
X24=" 1-A0 * s * (fft(0.625)) ",


Y25=" 0.3 " ,
X25=" 1-A0 * s * (fft(0.65)) ",


Y26=" 0.35 " ,
X26=" 1-A0 * s * (fft(0.675)) ",


Y27=" 0.4 " ,
X27=" 1-A0 * s * (fft(0.7)) ",


Y28=" 0.45 " ,
X28=" 1-A0 * s * (fft(0.725)) ",


Y29=" 0.5 " ,
X29=" 1-A0 * s * (fft(0.75)) ",


Y30=" 0.55 " ,
X30=" 1-A0 * s * (fft (0.775)) ",


Y31=" 0.6 " ,
X31=" 1-A0 * s * (fft (0.) ",


Y32=" 0.65 " ,
X32=" 1-A0 * s * (fft (0.825)) ",


Y33=" 0.7 " ,
X33=" 1-A0 * s * (fft (0.85)) ",


Y34=" 0.75 " ,
X34=" 1-A0 * s * (fft (0.875)) ",


Y35=" 0.8 " ,
X35=" 1-A0 * s * (fft (0.9)) ",


Y36=" 0.85 " ,
X36=" 1-A0 * s * (fft (0.925)) ",


Y37=" 0.9 " ,
X37=" 1-A0 * s * (fft (0.95)) ",


Y38=" 0.95 " ,
X38=" 1-A0 * s * (fft (0.975)) ",


Y39=" 1.0 " ,
X39=" 1-A0 * s * (fft (1)) ",


LWdt=" A1 ",

C0="s"

Pen=" C0 ",

Meta="reactive=5, detail=5, density=5, morphable=3",

Vers=260


flowfield:

Aspc=1

srcX="x + .03"
srcY=" y "

Vers=100


advised colormap: DT - antarctis

[Linvincible]

problem is: brightness decreases as the graph scrolls ...
but it's a good start!
next thing: more steps and logarithmic scale in the frequencies

[Linvincible]

now the linear scale of the pen is not really funny, I'll try to modify it beforeI submit those configs

but check that :

waveshape: Linvincible - V Spectrograph

Aspc=0,
Stps=50,
ConB=1,



X0="0.95"
Y0="2*s-1"

LWdt="2"

Pen="0.75+fft(s)"

ConB=1

LWdt="5",


Meta="reactive=5, detail=5, density=5, morphable=3",

Vers=260

to use with the scrolling flowfield above

I also modified the previous waveshapes I made, here they are:

**************************************************
waveshape: Linvincible - Spectrometer

X0="2*s-1"
Y0="2*fft(s)-1"

LWdt="2"

Pen="0.75+fft(s)"

ConB=1


Meta="reactive=4 detail=4 density=4 morphable=4"

Vers=270

****************************************************
waveshape; Linvincible - Spectrometer bar



Aspc=0,
Stps=40,
ConB=1,

A0="2", // Height scale
A1="3 + rnd( 3 )", // Thickness

X0=" -0.95 " ,
Y0=" A0 * s * (fft(0.025)) - 1",


X1=" -0.9 " ,
Y1=" A0 * s * (fft(0.05)) - 1",


X2=" -0.85 " ,
Y2=" A0 * s * (fft(0,075)) - 1",


X3=" -0.8 " ,
Y3=" A0 * s * (fft(0.1)) - 1",


X4=" -0.75 " ,
Y4=" A0 * s * (fft(0.125)) - 1",


X5=" -0.7 " ,
Y5=" A0 * s * (fft(0.15)) - 1",


X6=" -0.65 " ,
Y6=" A0 * s * (fft(0.175)) - 1",


X7=" -0.6 " ,
Y7=" A0 * s * (fft(0.2)) - 1",


X8=" -0.55 " ,
Y8=" A0 * s * (fft(0.225)) - 1",


X9=" -0.5 " ,
Y9=" A0 * s * (fft(0.25)) - 1",


X10=" -0.45 " ,
Y10=" A0 * s * (fft (0.275)) - 1",


X11=" -0.4 " ,
Y11=" A0 * s * (fft (0.35)) - 1",


X12=" -0.35 " ,
Y12=" A0 * s * (fft (0.325)) - 1",


X13=" -0.3 " ,
Y13=" A0 * s * (fft (0.35)) - 1",


X14=" -0.25 " ,
Y14=" A0 * s * (fft (0.375)) - 1",


X15=" -0.2 " ,
Y15=" A0 * s * (fft (0.4)) - 1",


X16=" -0.15 " ,
Y16=" A0 * s * (fft (0.425)) - 1",


X17=" -0.1 " ,
Y17=" A0 * s * (fft (0.45)) - 1",


X18=" -0.05 " ,
Y18=" A0 * s * (fft (0.475)) - 1",


X19=" 0.0 " ,
Y19=" A0 * s * (fft (0.5)) - 1",


X20=" 0.05 " ,
Y20=" A0 * s * (fft(0.525)) - 1",


X21=" 0.1 " ,
Y21=" A0 * s * (fft(0.55)) - 1",


X22=" 0.15 " ,
Y22=" A0 * s * (fft(0.575)) - 1",


X23=" 0.2 " ,
Y23=" A0 * s * (fft(0.6)) - 1",


X24=" 0.25 " ,
Y24=" A0 * s * (fft(0.625)) - 1",


X25=" 0.3 " ,
Y25=" A0 * s * (fft(0.65)) - 1",


X26=" 0.35 " ,
Y26=" A0 * s * (fft(0.675)) - 1",


X27=" 0.4 " ,
Y27=" A0 * s * (fft(0.7)) - 1",


X28=" 0.45 " ,
Y28=" A0 * s * (fft(0.725)) - 1",


X29=" 0.5 " ,
Y29=" A0 * s * (fft(0.75)) - 1",


X30=" 0.55 " ,
Y30=" A0 * s * (fft (0.775)) - 1",


X31=" 0.6 " ,
Y31=" A0 * s * (fft (0.8)) - 1",


X32=" 0.65 " ,
Y32=" A0 * s * (fft (0.825)) - 1",


X33=" 0.7 " ,
Y33=" A0 * s * (fft (0.85)) - 1",


X34=" 0.75 " ,
Y34=" A0 * s * (fft (0.875)) - 1",


X35=" 0.8 " ,
Y35=" A0 * s * (fft (0.9)) - 1",


X36=" 0.85 " ,
Y36=" A0 * s * (fft (0.925)) - 1",


X37=" 0.9 " ,
Y37=" A0 * s * (fft (0.95)) - 1",


X38=" 0.95 " ,
Y38=" A0 * s * (fft (0.975)) - 1",


X39=" 1.0 " ,
Y39=" A0 * s * (fft (1)) - 1",


LWdt=" A1 ",



Pen="0.8+fft(s)",

Meta="reactive=5, detail=5, density=5, morphable=3",

Vers=260

********************************************************
waveshape: Linvincible - V Spectrometer

Aspc=0,
Stps=50,
ConB=1,



X0="fft(s)"
Y0="2*s-1"

X1="-fft(s)"
Y1="2*s-1"

LWdt="2"

Pen="0.75+fft(s)"

ConB=1

LWdt="5",

Meta="reactive=4 detail=4 density=4 morphable=4"

Vers=270

******************************************************

[happyman]

Did Linvincible ever get his spectrogram working,
I looked at the geek site, but the link was too old.

Sure would like to know

Thanks
happyman

[Linvincible]

hi,

I posted my configs on my new website (as dyndns is not free anymore)
http://homepage.hispeed.ch/EnglandsLege ... shapes.zip
http://homepage.hispeed.ch/EnglandsLege ... fields.zip

the best combination for a spectrograph is
waveshape : Linvincible - V Spectrograph
flowfield : Linvincible - scroll compressed

Do not hesitate to improve!

Linvincible

[markofkane]

Thanks, I will try them out later, when I got time.

[happyman]

Thanks for the link. I have been working for a couple
years at getting whitecap to plot a 3d wireframe spectrogram
of two microphones (stereo) of amplitude/phase/freq.
Not successful yet, but I'm sort of an old bloody tick,
just keep hanging in there.
thanks again, and will check your version.