Acoustic reflection path tracing using a highly directional loudspeaker

A room impulse response measurement setup is proposed for the analysis of reflections. An omnidirectional loudspeaker that is traditionally used in acoustic measurements is replaced with a highly directional loudspeaker and which is rotated over a set of angles. The approach is shown to have benefits, as reflections can be found later in time than with traditional techniques. Secondly, it is shown that the proposed approach improves the separability of individual reflections in comparison to omnidirectional loudspeaker. This is achieved, since the impulse response of the proposed approach is spatially more separable.