Method and apparatus for audio transition between acoustic environments

An apparatus for generating acoustic environment information to assist rendering an audio scene, the apparatus comprising:

• at least one processor;
• and
• at least one memory storing instructions that, when executed with the at least one processor, cause the apparatus to:
• obtain information of at least a first acoustic environment associated with the audio scene, wherein the audio scene comprises the first acoustic environment and a second acoustic environment;
• obtain a first distance threshold that at least partially defines an audio transition region that enables adaptive rendering between the first and second acoustic environments depending on a listening position within the audio scene, wherein adjustment of an environment characteristic of the second acoustic environment is enabled based on the first distance threshold, for application to audio associated with the second acoustic environment, in response to the listening position being located within the first acoustic environment and the audio transition region and the listening position being located outside the second acoustic environment, wherein a first environment characteristic of the first acoustic environment is enabled to be maintained;
• and
• encode and output the information and the first distance threshold.

A method for an apparatus for enabling audio transition between at least two acoustic environments, the method comprising:

• obtaining information of at least a first acoustic environment associated with an audio scene, wherein the audio scene acoustic comprises the first environment and a second acoustic environment;
• obtaining a first distance threshold that at least partially defines an audio transition region that enables adaptive rendering between the first and second acoustic environments depending on a listening position within the audio scene;
• determining the listening position to adjust an environment characteristic of the second acoustic environment, wherein the determined listening position is located within the first acoustic environment and the audio transition region, wherein the determined listening position is located outside the second acoustic environment;
• and
• adjusting the environment characteristic of the second acoustic environment depending on the listening position for application to audio associated with the second acoustic environment, wherein the environment characteristic is adaptively controlled within the audio scene, wherein a first environment characteristic of the first acoustic environment is maintained.

A method for an apparatus for generating acoustic environment information to assist rendering an audio scene, the method comprising:

• obtaining information of at least a first acoustic environment associated with the audio scene, wherein the audio scene comprises the first acoustic environment and a second acoustic environment;
• obtaining a first distance threshold that at least partially defines an audio transition region that enables adaptive rendering between the first and second acoustic environments depending on a listening position within the audio scene, wherein adjustment of an environment characteristic of the second acoustic environment is enabled based on the first distance threshold, for application to audio associated with the second acoustic environment, in response to the listening position being located within the first acoustic environment and the audio transition region and the listening position being located outside the second acoustic environment, wherein a first environment characteristic of the first acoustic environment is enabled to be maintained;
• and
• encoding and outputting the information and the first distance threshold.