GetSpectrumData() and Instantiate() - The Big Problem

Unity Engine
1

Hello,
I make the game rhythm and I’m forced to use GetSpectrumData() to create objects to the rhythm using the Instantiate()

The problem is that in spite of the script, which @jister help me to write this, slightly helped (reduced the number of objects to 2-3 per beat) but still not formed exactly good one.

What else can I do to make it work well? Edit the music? Another script?

Gif demonstrates the problem:

Script

using UnityEngine;
using System.Collections;

public class FrequencyTresholdSpawner : MonoBehaviour {

    //ZMIENNE
    //Obiekt
    public GameObject objectPrefab;
    //treshold
    public float spawnThreshold = 0.05f;
    //Frequency
    public int frequency;
    //Window
    public FFTWindow fftWindow;
   
    GameObject clone;
   
    //ZMIENNA ILOSC SAMPLI
    private float[] samples = new float[4096]; //MUST BE A POWER OF TWO
   
    void Start()
    {
       
    }
   
    // Update is called once per frame
    void Update ()
    {
        //GETSPECTRUMDATA
        AudioListener.GetSpectrumData(samples, 0, fftWindow);
        //Tworzenie Obiektu
        Debug.Log(samples[frequency]);
        if(samples[frequency] > spawnThreshold)// && clone != null)
        {
            clone = (GameObject)Instantiate(objectPrefab, new Vector3(Random.Range(-10.0f, 10.0f), 5, 0), Quaternion.identity);
        }
        else
            clone = null;
    }
   
   
}
2

It sounds like you need to make it so that only on the first frame that the sample is above the threshold is when it spawns:

private bool wasAboveThresholdLastFrame = false;
...
if(samples[frequency] > spawnThreshold)// && clone != null)
        {
if (!wasAboveThresholdLastFrame) {
            clone = (GameObject)Instantiate(objectPrefab, new Vector3(Random.Range(-10.0f, 10.0f), 5, 0), Quaternion.identity);
}
wasAboveThresholdLastFrame = true;
        }
        else {
            clone = null;
wasAboveThresholdLastFrame = false;
}