If you’ve been navigating your AV receiver’s advanced menu and noticed that certain audio settings like Panorama, Center Width, Dimension, Dolby DRC, and DTS HD Speaker Remap are greyed out or inaccessible, it is because an applicable source must be playing to adjust these settings.
For example:
- To adjust ProLogic II Panorama, you need to be playing a CD, DVD, or other media that’s using Dolby ProLogic II decoding.
- For DTS HD Speaker Remap, your receiver must be processing a DTS-HD Master Audio track.
- Dolby DRC only becomes available when playing back Dolby-encoded content, such as from a DVD or Blu-ray disc using Dolby Digital.