Unity Audio Spectrum Visualisation problem

Unity Engine
1

I have a code from tutorial…The code compiles but no effect of scaling objects. In addition i dont quite undersund thse spectrum things. I know that a spectrum number represents Hz (spectrum of 1024 devided by 22050 Hz) so spectrum[1]= around 21Hz

but what I can se there is something like var c1=spectrum[1]+spectrum[2] and the question is why?
i know that C2 represents a sound of specific frq. but why these spectrums are added.

#pragma strict

function Start () {

}

function Update () {
var spectrum :float[]=AudioListener.GetSpectrumData(1024,0,FFTWindow.Hamming);


var c1:float=spectrum[1]+spectrum[1]+spectrum[1];
var c2:float=spectrum[11]+spectrum[12]+spectrum[13];
var c3:float=spectrum[22]+spectrum[23]+spectrum[24];
var c4:float=spectrum[44]+spectrum[45]+spectrum[46]+spectrum[47]+spectrum[48]+spectrum[49];


var cubes: GameObject[] = GameObject.FindGameObjectsWithTag("cube");
for( var  i=0;i<cubes.length;i++){
     switch(cubes[i].name){
     case "c1":cubes[i].transform.localScale.x=c1;Debug.Log("super"  +c2);break;
     case "c2":cubes[i].transform.localScale.x=c2;break;
     case "c3":cubes[i].transform.localScale.x=c3;break;
     case "c1":cubes[i].transform.localScale.x=c4;break;
     }}
  
     }

the code is from

thx in advance. This post will be seen for 12 months to help others to understand that thing

2

Fffff that’s terrible
Anyway, tagged the cubes as cube?

Its because the spectrum values are small, by summing multiple bands you get a larger value, and your bars will scale more across a range of frequencies

3

tags are fine… there is a yellow warning"
Assets/musick/musick analiser.js(8,37): BCW0012: WARNING: ‘UnityEngine.AudioListener.GetSpectrumData(int, int, UnityEngine.FFTWindow)’ is obsolete. GetSpectrumData returning a float[ ] is deprecated, use GetOutputData and pass a pre allocated array instead."

4

Not sure that would change anything, but worth trying.
It works like this:

var spectrum : float[] = new float[1024];
AudioListener.GetSpectrumData(spectrum, 0, FFTWindow)

(not spellchecked)

5
  • Assets/musick/musick analiser.js(9,30): BCE0023: No appropriate version of ‘UnityEngine.AudioListener.GetSpectrumData’ for the argument list ‘(float[ ], int, System.Type)’ was found.

the main script is in js

6

for example this thing code wokrs
#pragma strict
var object:GameObject;
function Start () {

}

function Update () {
var spectrum :float[ ]=AudioListener.GetSpectrumData(1024,0,FFTWindow.Hamming);

var c1:float=spectrum[1]+spectrum[1]+spectrum[1];
var c2:float=spectrum[11]+spectrum[12]+spectrum[13];
var c3:float=spectrum[22]+spectrum[23]+spectrum[24];
var c4:float=spectrum[44]+spectrum[45]+spectrum[46]+spectrum[47]+spectrum[48]+spectrum[49];

object.transform.localScale.y=c1*39;

}

so the problem must be in other part