Method and systems (e.g., for use in hearing aids, IAPs, etc) to process an audio signal include receiving an audio signal input; separating the audio signal input into a plurality of frequency bands; and compressing each of the plurality of frequency bands. Compressing each respective frequency band of the plurality of frequency bands may include applying a time-varying gain to each respective frequency band based on a suppressive level for the respective frequency band resulting in a compressed respective frequency band (e.g., wherein the suppressive level for the respective frequency band is dependent on the audio signal input level of one or more frequency bands adjacent to the respective frequency band to which the gain is applied). The compressed respective frequency bands may be combined for use in providing an audio signal.