Why is the data I pass into OnAudioFilterRead() resulting in glitchy audio?

I am trying to read data from an AudioClip using GetData(), and play it using OnAudioFilterRead().

However, the audio that I am hearing has the wrong pitch/speed + distortion.

Here's my project (Google Drive), and below is the code in question:

 using UnityEngine;
 using System.Collections;
 
 public class myPlay : MonoBehaviour 
 {
 
     //I have an AudioSource that I can use to start/stop audio...
     public AudioSource myAudioSource;
 
     //I have an AudioClip that I want to play...
     public AudioClip myAudioClip;
 
     //myBuffer will containt the sample values that are to be played by OnAudioFilterRead()...
     float[] myBuffer;
 
     //_N is the offset for AudioClip.GetData()...
     int _N;
 
     //_Buffer determines if it is time to load new sample values into myBuffer...
     bool _Buffer;
     
     void Start() 
     {
 
         //I want to start at the first sample...
         _N = 0;
 
         //Determine outputSampleRate based on sample frequency of AudioClip...
         AudioSettings.outputSampleRate = myAudioClip.frequency;
 
         //Initialize myBuffer...
         myBuffer = new float[2048];
 
         //Load sample values from myAudioClip into myBuffer...
         myAudioClip.GetData(myBuffer, _N);
 
         //Raise _N, to update offset...
         _N += 2048;
 
         //Set _Buffer to false so it'll go through OnAudioFilterRead() before loading in a new set of sample values...
         _Buffer = false;
 
         //Start audio...
         myAudioSource.Play();
 
     }
 
     void Update()
     {
 
         //If it is time to load in new samples values...
         if (_Buffer)
         {
 
             //Load sample values from myAudioClip into myBuffer...
             myAudioClip.GetData(myBuffer, _N);
 
             //Raise _N, to update offset...
             _N += 2048;
 
             //Set _Buffer to false, to make sure it'll go through OnAudioFilterRead before loading in a new set of samples values...
             _Buffer = false;
 
         }
 
     }
 
     void OnAudioFilterRead(float[] data, int channels)
     {
 
         //Move all sample values contained in myBuffer tot data...
         for (int a = 0; a < 2048; a++)
         {
             
             data[a] = myBuffer[a];
 
         }
 
         //Set _Buffer to true, so a new set of sample values will be loaded into myBuffer...
         _Buffer = true;
         
     }
 
 }