buffer property
      
      AudioBuffer?
      get
      buffer
      
    
    
The buffer property of the AudioBufferSourceNode interface
provides the ability to play back audio using an AudioBuffer as the
source of the sound data.
If the buffer property is set to the value null, the node
generates a single channel containing silence (that is, every sample is
0).
Implementation
external AudioBuffer? get buffer;
      
      set
      buffer
      (AudioBuffer? value) 
      
    
    
    
Implementation
external set buffer(AudioBuffer? value);