Group Normalize Group Normalize is the same basic process as Normalize, however the peak is determined by searching all selected audio tracks. For this reason, one or more audio tracks must be selected in order for Group Normalize to function properly. The overall effect is a unified amplitude scaling applied across all audio tracks within the active selection. Due to the nature of Group Normalize’s averaging scheme, all regions may not reach 100% amplitude. See Also: Normalize Reverse Scale Amplitude Fade Cross-Fade Split Stereo Tracks Combine Regions