Change LoadType of an AudioClip at runtime to StreamFromDisc

Hello!

I have this code:

     void Start()
     {
         StartCoroutine(getAudio());
     }
 
     IEnumerator getAudio()
     {
         WWW www = new WWW("file://"  + "C:\\Users\\luisc\\Downloads\\Wav\\Blues\\African Plains.wav");
         yield return www;
 
         AudioClip audioClip = www.GetAudioClip(false, true, AudioType.WAV);
     }

The problem is that it loads the audio in memory. If I have 50 songs, it needs a few Gb of RAM..

I was trying to change the LoadType but it seems that AudioImporterLoadType.StreamFromDisc is deprecated and it don't work because AudioImporter.loadType does not exist anymore..

How can i change this?

PS: Of course i can´t cnage manualy on inspector importer because the audio is on disk and not inside unity project.