A method and apparatus is provided for presenting a user with a visual
indication of the likely user-perceived location of sound sources in an
audio field generated from left and right audio channel signals. To
produce this visual indication, corresponding components in the left and
right channel signals are detected by a correlation arrangement. These
corresponding components are then used by a source-determination
arrangement to infer the presence of at least one sound source and to
determine the azimuth location of this source within the audio field. A
display processing arrangement causes a visual indication of the sound
source and its location to be presented to the user.