gistfile1.txt

using System.Collections;
using System.Collections.Generic;
using UnityEngine;


// This is how you use it. Basically just request AudioPeer.bandBuffer[i]
public class AudioBars : MonoBehaviour
{
  public List<GameObject> bars = new List<GameObject>(8);

  public float scaleMultiplier = 0.1f;
  public float sunScale;

  public SunVisualizer sun;

  private void Update()
  {
    for (int i = 0; i < bars.Count; i++)
    {
      if (bars[i] != null)
        bars[i].transform.localScale = new Vector3(1, AudioPeer.bandBuffer[i % 8] * scaleMultiplier + 0.5f, 1);
    }
    float avarage = 0;
    for (int i = 0; i < bars.Count; i++)
    {
      avarage += AudioPeer.bandBuffer[i % 8];
    }
    avarage /= bars.Count;
    sun.Visualize(avarage * sunScale);
  }
}

gistfile2.txt

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.Audio;

public class AudioPeer : MonoBehaviour
{
  public AudioSource audiosource;
  public static float[] samples = new float[512];

  public static float[] frequencyBands = new float[8];
  public static float[] bandBuffer = new float[8];
  private float[] bufferDecreese = new float[8];

  // Use this for initialization
  private void Start()
  {
    if (audiosource == null)
    {
      audiosource = GetComponent<AudioSource>();
    }
    for (int i = 0; i < Microphone.devices.Length; i++)
    {
      //Debug.Log(Microphone.devices[i]); ;
    }

    // audiosource.clip = Microphone.Start(Microphone.devices[0].ToString(), true, 1000, AudioSettings.outputSampleRate);
    //  audiosource.outputAudioMixerGroup = audioMixerGroup;
    audiosource.Play();
  }

  // Update is called once per frame
  private void Update()
  {
    GetSpectrumAudioSource();
    MakeFrequencyBand();
    BandBuffer();
  }

  private void GetSpectrumAudioSource()
  {
    audiosource.GetSpectrumData(samples, 0, FFTWindow.Blackman);
  }

  private void MakeFrequencyBand()
  {
    int count = 0;

    for (int i = 0; i < frequencyBands.Length; i++)
    {
      int sampleCount = 8;
      float avarage = 0;

      for (int j = 0; j < sampleCount; j++)
      {
        avarage += samples[count] * (count + 1);
        count++;
      }

      frequencyBands[i] = avarage / sampleCount;
    }
  }

  private void BandBuffer()
  {
    for (int i = 0; i < bandBuffer.Length; i++)
    {
      if (frequencyBands[i] > bandBuffer[i])
      {
        bandBuffer[i] = frequencyBands[i];
        bufferDecreese[i] = 0.0005f;
      }
      if (frequencyBands[i] < bandBuffer[i])
      {
        bandBuffer[i] -= bufferDecreese[i];
        if (bandBuffer[i] < 0.001f)
        {
          bandBuffer[i] = 0.001f;
        }
        bufferDecreese[i] *= 1.2f;
      }
    }
  }
}