https://source.android.com/ 
public interface android.media.audiofx.Virtualizer$OnParameterChangeListener
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: android.media.audiofx.Virtualizer$OnParameterChangeListener
  super_class: java.lang.Object
{
  public abstract void onParameterChange(android.media.audiofx.Virtualizer, int, int, short);
    descriptor: (Landroid/media/audiofx/Virtualizer;IIS)V
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    MethodParameters:
        Name  Flags
      effect  
      status  
      param   
      value   
}
SourceFile: "Virtualizer.java"
NestHost: android.media.audiofx.Virtualizer
InnerClasses:
  public abstract OnParameterChangeListener = android.media.audiofx.Virtualizer$OnParameterChangeListener of android.media.audiofx.Virtualizer