效果
覺得很神奇，其實很簡單。
搬運的油管的，github，忘了。代碼奉上。
要個addiosource。和AudioListener
using UnityEngine;
using UnityEngine.UI;
using System.Collections;
public class AudioVisualizer : MonoBehaviour {
public Transform[] audioSpectrumObjects;
[Range(1, 100)] public float heightMultiplier;
[Range(64, 8192)] public int numberOfSamples = 1024; //step by 2
public FFTWindow fftWindow;
public float lerpTime = 1;
public Slider sensitivitySlider;
/*
* The intensity of the frequencies found between 0 and 44100 will be
* grouped into 1024 elements. So each element will contain a range of about 43.06 Hz.
* The average human voice spans from about 60 hz to 9k Hz
* we need a way to assign a range to each object that gets animated. that would be the best way to control and modify animatoins.
*/
void Start(){
heightMultiplier = PlayerPrefsManager.GetSensitivity ();
sensitivitySlider.onValueChanged.AddListener(delegate {
SensitivityValueChangedHandler(sensitivitySlider);
});
}
void Update() {
// initialize our float array
float[] spectrum = new float[numberOfSamples];
// populate array with fequency spectrum data
GetComponent<AudioSource>().GetSpectrumData(spectrum, 0, fftWindow);
// loop over audioSpectrumObjects and modify according to fequency spectrum data
// this loop matches the Array element to an object on a One-to-One basis.
for(int i = 0; i < audioSpectrumObjects.Length; i++)
{
// apply height multiplier to intensity
float intensity = spectrum[i] * heightMultiplier;
// calculate object's scale
float lerpY = Mathf.Lerp(audioSpectrumObjects[i].localScale.y,intensity,lerpTime);
Vector3 newScale = new Vector3( audioSpectrumObjects[i].localScale.x, lerpY, audioSpectrumObjects[i].localScale.z);
// appply new scale to object
audioSpectrumObjects[i].localScale = newScale;
}
}
public void SensitivityValueChangedHandler(Slider sensitivitySlider){
heightMultiplier = sensitivitySlider.value;
}
}