Frequency domain multiplexing of spatial audio for multiple listener sweet spots

An apparatus, comprising:

• an interface system;
• and
• a control system configured to:
• receive, via the interface system, audio data;
• receive, via the interface system, listening configuration data for a plurality of listening configurations, each listening configuration of the plurality of listening configurations corresponding to a listening position and a listening orientation;
• analyze, by an analysis filterbank implemented via the control system, the audio data to produce a global set of frequency bands corresponding to the audio data;
• select, for each renderer of a plurality of renderers implemented by the control system, a subset of the global set of frequency bands to produce a renderer-specific set of frequency bands for each renderer;
• render, by each renderer of the plurality of renderers and according to the listening configuration data, the renderer-specific set of frequency bands to obtain a set of renderer-specific loudspeaker feed signals for a corresponding listening configuration, wherein:
• each renderer is configured to render frequency bands of the renderer-specific set of frequency bands for a different listening configuration;
• a first renderer of the plurality of renderers is configured to render a first subset of frequency bands of the renderer-specific set of frequency bands for a first listening position and a first listening orientation;
• and
• a second renderer of the plurality of renderers is configured to render a second subset of frequency bands of the renderer-specific set of frequency bands for a second listening position and a second listening orientation, and wherein:
• the second subset of frequency bands is different from the first subset of frequency bands;
• and
• the second listening position and orientation correspond with a second listening configuration that is different from a first listening configuration that corresponds with the first listening position and the first listening orientation;
• combine sets of renderer-specific loudspeaker feed signals of each renderer of the plurality of renderers, to produce an output set of loudspeaker feed signals;
• and
• output the output set of loudspeaker feed signals to a plurality of loudspeakers of an audio environment.

One or more non-transitory media having instructions stored thereon which, when executed by a device or system, cause the device or system to perform a method comprising:

• receiving, by a control system, audio data;
• receiving, by the control system, listening configuration data for a plurality of listening configurations, each listening configuration of the plurality of listening configurations corresponding to a listening position and a listening orientation;
• analyzing, by an analysis filterbank implemented via the control system, the audio data to produce a global set of frequency bands corresponding to the audio data;
• selecting, by the control system and for each renderer of a plurality of renderers implemented by the control system, a subset of the global set of frequency bands to produce a renderer-specific set of frequency bands for each renderer;
• rendering, by each renderer of the plurality of renderers and according to the listening configuration data, the renderer-specific set of frequency bands to obtain a set of renderer-specific loudspeaker feed signals for a corresponding listening configuration, wherein:
• each renderer is configured to render frequency bands of the renderer-specific set of frequency bands for a different listening configuration;
• a first renderer of the plurality of renderers is configured to render a first subset of frequency bands of the renderer-specific set of frequency bands for a first listening position and a first listening orientation;
• and
• a second renderer of the plurality of renderers is configured to render a second subset of frequency bands of the renderer-specific set of frequency bands for a second listening position and a second listening orientation, and wherein:
• the second subset of frequency bands is different from the first subset of frequency bands;
• and
• the second listening position and orientation correspond with a second listening configuration that is different from a first listening configuration that corresponds with the first listening position and the first listening orientation;
• combining, by the control system, sets of renderer-specific loudspeaker feed signals of each renderer of the plurality of renderers, to produce an output set of loudspeaker feed signals;
• and
• outputting, by the control system, the output set of loudspeaker feed signals to a plurality of loudspeakers of an audio environment.