The new global standards will facilitate the production and exchange of advanced audio files because a single file can contain a complete audio program with audio samples and metadata, enabling any audio combination based on the object, channel, and scene. The new file format was developed based on the existing and widely used RIFF/WAV file format to simplify its application and implementation.
Sound is indispensable in television and radio. In real life, we hear sounds from all around us – a bird overhead, a car behind us, or a voice in front. Achieving this same experience in media is what we call 'immersive audio'. Combined with the new high-quality ultra-high-definition television (UHDTV), which offers enhanced picture reproduction, immersive audio will elevate the television experience to a whole new level, further blurring the line between physical reality and virtual or digital simulation.
Future audio capabilities will also allow viewers to select their own menu of services. They will be able to decide and adjust the level of immersive sound in their living rooms, thus achieving dynamic images and sound.
These features are made possible by 'object-based encoding,' which will allow viewers to personalize their viewing and listening experience 'at the point of consumption.' This could include defining the language, dialogue levels, and selecting different aspects or sections of the program, which could provide an additional benefit to people with disabilities.
"The ITU's global standards for immersive audio represent an important step towards an exciting new era of 'sound' for broadcasting," said Houlin Zhao, ITU Secretary-General. "The new audio systems will provide additional features and performance far superior to those currently available."
"The role of sound in the media is not sufficiently appreciated," said François Rancy, Director of the ITU Radiocommunication Bureau. "The work of the ITU and other standards bodies is creating an exciting future for audio production, transmission, and programming."
