buffer property of the
ConvolverNode interface represents a mono, stereo, or 4-channel
AudioBuffer containing the (possibly multichannel) impulse response used by the
ConvolverNode to create the reverb effect.
This is normally a simple recording of as-close-to-an-impulse as can be found in the space you want to model. For example, if you want to model the reverb in your bathroom, you might set up a microphone near the door to record the sound of a balloon pop or synthesized impulse from the sink. That audio recording could then be used as the buffer.
AudioBuffer must have the same sample-rate as the
AudioContext or an exception will be thrown. At the time when this attribute is set, the buffer and the state of the attribute will be used to configure the
ConvolverNode with this impulse response having the given normalization. The initial value of this attribute is