Fig. 4

HbDiff (HbO – HbR) normalized time series data for each subregion averaged across participants. Shaded regions represent one standard error of the mean. Standard refers to the hearing aid’s default start-up program, which implements omnidirectional microphones, speech enhancement and fast-acting compression. DNN refers to the DNN-listening program, which implements a combination of directional microphones, DNN-based noise management, and slow-acting compression.