Rather than adding fixed channels, many cinemas moved to Dolby Atmos, which has 128 audio streams with spatial placement metadata. Those are rendered to whatev

Rather than adding fixed channels, many cinemas moved to Dolby Atmos, which has 128 audio streams with spatial placement metadata. Those are rendered to whatever speaker array is available. https://www.dolby.com/us/en/technologies/cinema/dolby-atmos.html https://www.dolby.com/us/en/technologies/cinema/dolby-atmos....