Several subjective sound impressions are closely related to apparent source width. Reverberance refers to the impression that spatially and temporally distributesdistributed sounds blend due to reverberation. [[Liveness]] is the impression that the room contributes more than just repetitions of direct sound. A live concert soundsounds better in a reverberant than in a dead or dry hall. In intimate halls instruments sound near and the hall sounds small. Listener envelopment is the impression that the listener takes a bath in sound, i.e., that sound comes from all over the place. Spaciousness is a term that summarizes apparent source width and listener envelopment.<ref name=beranek/>
