Hey there
I wanted to try and do some visualization of music data and I was told to start by looking at the AudioSource.GetSpectrumData(…) method but the data that it spits out at me doesn’t really make sense to me 
And looking at the example code doesn’t really educate me any further:
public class GetSpectrumDataExample : MonoBehaviour
{
AudioSource audio;
float[] spectrum = new float[256];
void Start()
{
audio = GetComponent<AudioSource>();
}
// Update is called once per frame
void Update()
{
audio.GetSpectrumData(spectrum, 0, FFTWindow.BlackmanHarris);
int i = 1;
while (i < spectrum.Length - 1)
{
Debug.DrawLine(new Vector3(i - 1, spectrum[i] + 10, 0), new Vector3(i, spectrum[i + 1] + 10, 0), Color.red);
Debug.DrawLine(new Vector3(i - 1, Mathf.Log(spectrum[i - 1]) + 10, 2), new Vector3(i, Mathf.Log(spectrum[i]) + 10, 2), Color.cyan);
Debug.DrawLine(new Vector3(Mathf.Log(i - 1), spectrum[i - 1] - 10, 1), new Vector3(Mathf.Log(i), spectrum[i] - 10, 1), Color.green);
Debug.DrawLine(new Vector3(Mathf.Log(i - 1), Mathf.Log(spectrum[i - 1]), 3), new Vector3(Mathf.Log(i), Mathf.Log(spectrum[i]), 3), Color.yellow);
i++;
}
}
}
But despite this, the code produces this:
Could anyone in here shed some light on how the Spectrum Data works?
