METHODS AND DEVICES FOR CODING OR DECODING OF SCENE-BASED IMMERSIVE AUDIO CONTENT

The application provides a method (500) for encoding an Ambisonics input audio signal. The method (500) comprises providing (501) the input audio signal to a SPAR encoder and to a DirAC analyzer and parameter encoder. Furthermore, the method (500) comprises generating (502) an encoder bit stream based on output of the SPAR encoder and based on output of the DirAC analyzer and parameter encoder. The application also provides a method for decoding the encoder bitstream by generating an intermediate Ambisonics signal using a SPAR decoder based on the encoder bitstream and processing the intermediate Ambisonics signal using a DirAC synthesizer to provide an output audio signal for rendering. The DirAC synthesizer may use DirAC parameters of the bitstreams or DirAC parameters obtained by analysing the intermediate Ambisonics signal.