Generally, techniques for transforming spherical harmonic coefficients are described. A device comprising one or more processors may perform the techniques described above. The processors may be configured to parse the bitstream to determine conversion information that describes how the sound field was transformed to reduce the number of the plurality of hierarchical elements that provide information related to describing the sound field have. The processors are further configured to perform a transformation to reduce the number of the plurality of hierarchical elements when reproducing the sound field based on those of the plurality of hierarchical elements providing information relating to describing the sound field And to convert the sound field based on the conversion information to perform inverse processing.
展开▼
