Abstract: Presented herein are techniques for bilateral-coordination of channel selection in bilateral hearing prosthesis systems. A bilateral hearing prosthesis system comprises first and second hearing prostheses each configured to receive sound signals, and a processing module. The processing module is configured to select, based on bilateral sound information, a set of sound processing channels for use by both of the first and second hearing prostheses. The first hearing prosthesis is configured stimulate the first ear of the recipient using stimulation generated from the sound signals received at the first hearing prosthesis and processed in at least the set of sound processing channels by the first hearing prosthesis. The second hearing prosthesis is configured stimulate the second ear of the recipient using stimulation generated from the sound signals received at the second hearing prosthesis and processed in at least the set of sound processing channels by the second hearing prosthesis.