How do you make a sound visualizer??

cutekawaii59

Plzz, I need help. I see really cool ones but I see the code & I can't figure it out.
There is only one project that shows how to make one but it didn't work.

HELP PLEASE!!

gtoal

since you cannot determine frequencies using scratch, all you can do is look at the volume of the sound and then do something according to the volume. i may help to track the loudest and quietest volumes and use that to normalise your display between 0 and 100%

cutekawaii59

gtoal wrote:
since you cannot determine frequencies using scratch, all you can do is look at the volume of the sound and then do something according to the volume. i may help to track the loudest and quietest volumes and use that to normalise your display between 0 and 100%

Umm, I don't get it..

asivi

https://scratch.mit.edu/discuss/topic/285594/

PawPrinter

Short answer: you can't.

asivi

PawPrinter wrote:
Short answer: you can't.

Short question: Why?

Last edited by asivi (Dec. 29, 2017 09:15:52)

cutekawaii59

PawPrinter wrote:
Short answer: you can't.

Well what about this: https://scratch.mit.edu/projects/193549841/
Yes, you can!!

2Dproductions

gtoal wrote:
since you cannot determine frequencies using scratch

Sure, you can't determine frequencies using Scratch, but you can with audacity and trust me, a ton of people have audacity.

PawPrinter

asivi wrote:
Short question: Why?

Scratch doesn't have any blocks that can analyze sound.

cutekawaii59 wrote:
Well what about this: https://scratch.mit.edu/projects/193549841/
Yes, you can!!

This isn't actually a true sound visualizer. The creator of the project analyzed the music in a different program, then just animated the “wave” based on that information. If you were to play a different song the animation would be the same.

cutekawaii59

PawPrinter wrote:
asivi wrote:
Short question: Why?

Scratch doesn't have any blocks that can analyze sound.

cutekawaii59 wrote:
Well what about this: https://scratch.mit.edu/projects/193549841/
Yes, you can!!

This isn't actually a true sound visualizer. The creator of the project analyzed the music in a different program, then just animated the “wave” based on that information. If you were to play a different song the animation would be the same.

Oh, okay. I get it.

asivi

https://scratch.mit.edu/projects/195765665/#fullscreen

An attempt getting data from Audacity.

griefercube

Well maybe this is better.

https://scratch.mit.edu/projects/422855506/

SpinningCube

You can use the loudness block (I think it's in an extension now) and record the loudness to a list using your microphone (This will record things in the real world, too). Then, you can play back that loudness with whatever visualization you want, so that when other people play the project, they see the proper visualization.

Pikachu815

like this

Last edited by Pikachu815 (Nov. 29, 2020 06:55:49)

Pikachu815

when green flag clicked
forever
clear
pen down
move ((loudness) * (2)) steps
end

Last edited by Pikachu815 (Nov. 29, 2020 07:07:10)

Pikachu815

just add the music

Facu2013leon

But what if i don't have a microphone and instead i want to visualize a soundfile directly from the device?!?!?!?

Facu2013leon

Nevermind, i read more and realized it's impossible. SCRATCH PLEASE FOR THE LOVE OF GOOOOD!!!!!!

Facu2013leon

man im dead

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