Spatial transformation of ambisonic audio data

A device configured to decode a bitstream, the device comprising:

• a memory configured to store a temporally encoded representation of spatial audio signals;
• receive the bitstream that includes an indication of a spatial transformation;
• a temporal decoding unit, coupled to the memory, configured to decode one or more spatial audio signals represented in a spatial domain, where the one or more spatial audio signals are associated with different angles in the spatial domain;
• an inverse spatial transformation unit, coupled to the temporal decoding unit, is configured to (i) convert the one or more spatial audio signals represented in the spatial domain into at least three ambisonic coefficients that, in part, represent a soundfield in an ambisonics domain, and (ii) perform a spatial transformation of the soundfield based on the indication of the spatial transformation received in the bitstream;
• and
• a rendering unit, that is part of a first layer in a decoder that includes at least two layers, coupled to the inverse spatial transformation unit, configured to render the at least three ambisonic coefficients into a first set of speaker feeds.