An apparatus comprising means configured to: determine, using at least two audio signals, at least one acoustic source by estimating spatial directions or locations of acoustic sources from the at least two audio signals, or by obtaining from a metafile associated with the at least two audio signals and including acoustic source location information; capture at least one image frame; generate at least one user interface overlay element; display the at least one image frame and the at least one user interface overlay element to generate a display image; determine at least one point of interest location associated with the at least one acoustic source, wherein at least one point of interest is determined, at least in part, with a user interface indication of the at least one point of interest location; determine a trajectory of the at least one point of interest location associated with the at least one acoustic source, where the trajectory of the point of interest location associated with the at least one acoustic source is determined based, at least partially, upon the user interface indication of the at least one point of interest location and movement of the at least one acoustic source; determine at least one spatial audio signal based on the at least determined trajectory, wherein the at least one spatial audio signal is based on an application of an amplification or attenuation to the at least two audio signals based on the determined trajectory; and reproduce the at least one spatial audio signal from at least one sound playback transducer; wherein the at least one user interface overlay element comprises an overlay displaying the point of interest location of the at least one acoustic source and displaying an amplification or attenuation focus sector width and orientation based on the at least one point of interest location. determine, using at least two audio signals, at least one acoustic source by estimating spatial directions or locations of acoustic sources from the at least two audio signals, or by obtaining from a metafile associated with the at least two audio signals and including acoustic source location information; capture at least one image frame; generate at least one user interface overlay element; display the at least one image frame and the at least one user interface overlay element to generate a display image; determine at least one point of interest location associated with the at least one acoustic source, wherein at least one point of interest is determined, at least in part, with a user interface indication of the at least one point of interest location; determine a trajectory of the at least one point of interest location associated with the at least one acoustic source, where the trajectory of the point of interest location associated with the at least one acoustic source is determined based, at least partially, upon the user interface indication of the at least one point of interest location and movement of the at least one acoustic source; determine at least one spatial audio signal based on the at least determined trajectory, wherein the at least one spatial audio signal is based on an application of an amplification or attenuation to the at least two audio signals based on the determined trajectory; and reproduce the at least one spatial audio signal from at least one sound playback transducer; wherein the at least one user interface overlay element comprises an overlay displaying the point of interest location of the at least one acoustic source and displaying an amplification or attenuation focus sector width and orientation based on the at least one point of interest location.