Method and system for producing an augmented ambisonic format

An electronic device, comprising:

• at least one processor;
• and
• memory having instructions stored therein which when executed by the at least one processor causes the electronic device to:
• determine a layout of a virtual loudspeaker array based on a desired higher-order ambisonics (HOA) format;
• receive a plurality of microphone signals that includes sound of an ambient environment captured by a plurality of microphones,
• determine one or more parameters associated with the sound of the ambient environment by performing a parametric analysis upon at least one of the plurality of microphone signals,
• produce a plurality of spatially rendered audio signals by spatially rendering the plurality of microphone signals according to the layout of the virtual loudspeaker array,
• producing a plurality of filtered audio signals by filtering at least one of the spatially rendered audio signals based on the one or more parameters, and
• encoding the plurality of filtered audio signals into a plurality of higher-order ambisonics (HOA) signals.

A processor of an electronic device configured to:

• determine a layout of a plurality of virtual loudspeakers using on a desired higher-order ambisonics (HOA) format;
• receive a first plurality of audio signals;
• produce a plurality of spatially rendered audio signals by spatially rendering the first plurality of audio signals according to the layout of the plurality of virtual loudspeakers;
• produce a plurality of filtered audio signals by filtering at least one of the spatially rendered audio signals based on a sound-field analysis of the first plurality of audio signals;
• and
• encode the plurality of filtered audio signals into a second plurality of audio signals in the desired HOA format, wherein the second plurality of audio signals includes more audio signals than the first plurality of audio signals.