AudioClip.SetData not working

Hello there, i am trying to write a code to filter audio data of a clip reading the sample data before playing it and setting the sample data to another AudioClip after all the modifications i want to make to the audio. I have achieved to read the data and transforming it but at the time of using SetData, the new clip that i create seems empty. I am sure that the final data is exactly the same, so the problem isn't the sample transfer neither the array creation. Maybe i have misunderstood the setData usage so if anyone nows how it exactly works i will be pleased with any help.

 public void OnGui {
 AudioClip newClip;
   
 //windowLenght is the amount of samples I use for the FFT
 float[] samplesFull = new float[clipsInfo[i][0].windowLenght * clipsInfo[i].Length];
 
 //Here is the code i use for FFT conversion and filling samplesFull, it works perfectly fine
 
 if (myObject != null)
                     {
                         newClip = AudioClip.Create("KrillClip", samplesFull.Length, 2, 88200, false);
                         newClip.SetData (samplesFull, 0);
                         AudioSource tempAudioSource;
                         tempAudioSource = myObject.AddComponent<AudioSource>();
                         tempAudioSource.clip = newClip;
                     }
 }