A method may include receiving a sound signal and identifying a plurality of components of the sound signal. The plurality of components may include a tonal component and an atonal component. The method may further include generating a first stimulation signal based on the tonal component of the sound signal, wherein the first stimulation signal is configured for application by a first stimulator to provide an acoustic output from a hearing prosthesis system. In addition, the method may include generating a second stimulation signal based on the atonal component of the sound signal, wherein the second stimulation signal is configured for application by a second stimulator to provide an electrical output from the hearing prosthesis system.