Apparatus and method for generating a plurality of parametric audio streams and apparatus and method for generating a plurality of loudspeaker signals

An apparatus for generating a plurality of loudspeaker signals from a plurality of parametric audio streams;

• wherein each of the plurality of parametric audio streams comprises a segmental audio component and a corresponding parametric spatial information;
• wherein the parametric spatial information of each of the parametric audio steams comprises a direction-of-arrival parameter and/or a diffuseness parameter;
• wherein the apparatus comprises:
• a renderer for providing a plurality of input segmental loudspeaker signals from the plurality of parametric audio streams, so that the input segmental loudspeaker signals depend on corresponding segments of a recording space, wherein the segments of the recording space each represent a subset of directions within a two-dimensional plane or within a three-dimensional space, and wherein the segments are different from each other;
• wherein the renderer is configured for rendering each of the segmental audio components using the corresponding parametric spatial information to acquire the plurality of input segmental loudspeaker signals;
• and
• a combiner for combining the input segmental loudspeaker signals to acquire the plurality of loudspeaker signals.

A method for generating a plurality of loudspeaker signals from a plurality of parametric audio streams;

• wherein each of the plurality of parametric audio streams comprises a segmental audio component and a corresponding parametric spatial information;
• wherein the parametric spatial information of each of the parametric audio steams comprises a direction-of-arrival parameter and/or a diffuseness parameter;
• wherein the method comprises:
• providing a plurality of input segmental loudspeaker signals from the plurality of parametric audio streams, so that the input segmental loudspeaker signals depend on corresponding segments of a recording space, wherein the segments of the recording space each represent a subset of directions within a two-dimensional plane or within a three-dimensional space, and wherein the segments are different from each other;
• wherein providing the plurality of input segmental loudspeaker signals is conducted by rendering each of the segmental audio components using the corresponding parametric spatial information to acquire the plurality of input segmental loudspeaker signals;
• and
• combining the input segmental loudspeaker signals to acquire the plurality of loudspeaker signals.