Dolby AC-4 vs MPEG-H 3D Audio: Next-Generation Audio Codecs

While the two frontrunners in the NGA codec stakes are similar in many ways, a comparison of their background and frame of reference gives some interesting insights, writes John Maxwell Hobbs.

The two leading implementations of Next-Generation Audio (NGA) are Dolby AC-4 and MPEG-H 3D audio. Although they are both based around a central set of recommendations from the ITU, they have different origins, advantages, and limitations.

Dolby AC-4 vs MPEG-H 3D Audio: Background

Multi-channel audio broadcasts have been around since 1881, when Clément Alder connected pairs of telephone lines to send stereo audio from the Paris Opera to rooms at the Paris Electrical Exhibition. Between 1890 and 1932, audio programmes using this technology were commercially available in France and England. Since that time, broadcasting has gone from a single audio channel to as many as 22...

Latest Feature

Content Everywhere: a look back at 2024

As the year draws to a close, it seems an opportune time to ask Content Everywhere companies for their views on the top trends in 2024. As always, key industry players have been keen to respond with comments and views on how the past year shaped up both for them and the wider industry.

Read more
1062915296

AI and the evolution of MAM: Part one – risk analysis

Forms of AI and automation have been making efficiencies in media asset management (MAM) systems for some time, but as the technology becomes more powerful and its potential applications more expansive, what are the major considerations and risks of AI’s role in MAM? James McKeown explores in the first of a three-part investigation.

Read more
Favourites:

Registered users only: Login

Share this:
Other themes: