Enhanced AC-3 is an audio coding format commonly associated with Dolby Digital Plus. It is related to, but distinct from, AC-3, so support for one name does not establish every capability of the other. Playback and output depend on the encoded track and the supported decoding or passthrough path across the particular equipment chain.
A practical example
A film can produce sound on a newer streaming setup while remaining silent on older equipment that does not handle its chosen audio path. Selecting another available supported track or using a compatible output arrangement can help isolate the difference.
A common misunderstanding
Do not infer object-based audio or a specific speaker experience solely from E-AC-3 support. Track metadata, device implementation and output equipment add further requirements beyond the broad codec name.
Related terms
Stable technical definition. Editorial approach