Providing a virtual acoustic environment comprises determining updates to audio signals based at least in part on information in sensor output, including, for each of multiple time intervals: determining an updated position of a wearable audio device, based at least in part on position information in the sensor output; determining layouts of at least four virtual walls, where the layouts are determined such that the updated position is within a space defined by the virtual walls; determining positions of at least four image audio sources associated with a virtual audio source, where a position of each image audio source is dependent on a layout of a corresponding one of the virtual walls and a position of the virtual audio source; and processing the audio signals using an update determined based at least in part on the respective positions of the virtual audio source and the image audio sources.