Patent ID: 9241216
Filing Date: 2016-01-19
CPC Classification: G10L,H04R,H04S

Claim Text:
1. A non-transitory machine readable medium containing a data structure for Higher Order Ambisonics (HOA) audio data including Ambisonics coefficients, which data structure includes 2D, or 3D, or both 2D and 3D, spatial audio content data for one or more different HOA audio data stream descriptions, and which data structure is also suited for HOA audio data that have on order of greater than ‘3’, and which data structure in addition can include single audio signal source data, or microphone array audio data, or both single audio signal source data and microphone array audio data, from fixed or time-varying spatial positions, wherein said different HOA audio data stream descriptions are related to at least two of different loudspeaker position densities, coded HOA wave types, HOA orders and HOA dimensionality, and wherein one HOA audio data stream description contains audio data for a presentation with a given loudspeaker arrangement located at a distinct area of a presentation site, and another HOA audio data stream description contains audio data for a presentation with a different loudspeaker arrangement surrounding said presentation site, wherein said different loudspeaker arrangement has a loudspeaker position density that is lower than that of said given loudspeaker arrangement.