Abstract: Equipment (1) for producing binaural sound signals for virtual spatial audio includes a receiver (4) for receiving signals that should be rendered as virtual spatial audio. A signal processor (3) is in communication with the receiver (4) for processing the received audio signals, performing computations using a distance variation function for varying a target distance of the virtual sound and rendering the received signals as virtual spatial audio. The equipment (1) further includes a connector (6) to which an output device is connectable, the output device being controlled by the signal processor (3) to output binaural sound signals for virtual spatial audio at the target distance.