Immersive audio fading

An audio playback system, comprising:

• an audio fader control;
• at least one processor;
• memory storing instructions that when executed by the at least one processor, cause the at least one processor to perform operations comprising:
• receiving object-based audio and metadata;
• rendering the object-based audio into a multichannel audio presentation for a first loudspeaker layout based on the metadata;
• generating a first mix by applying a first mapping of the multichannel audio presentation to a second loudspeaker layout;
• generating first loudspeaker signals based on the first mix for playback through loudspeakers in the second loudspeaker layout;
• receiving input through the audio fader control;
• generating a second mix different from the first mix by applying a second mapping of the multichannel audio presentation to the second loudspeaker layout, the second mapping based on the input;
• and
• generating, with the at least one processor, second loudspeaker signals based on the second mix for playback through the loudspeakers in the second loudspeaker layout.

A non-transitory, computer-readable storage medium including instructions thereon that, when executed by at least one processor of an electronic device with a fader control, cause the at least one processor to perform operations comprising:

• receiving object-based audio and metadata;
• rendering the object-based audio into a multichannel audio presentation for a first loudspeaker layout based on the metadata;
• generating a first mix by applying a first mapping of the multichannel audio presentation to a second loudspeaker layout;
• generating first loudspeaker signals based on the first mix for playback through loudspeakers in the second loudspeaker layout;
• receiving input through the audio fader control;
• generating a second mix different from the first mix by applying a second mapping of the multichannel audio presentation to the second loudspeaker layout, the second mapping based on the input;
• and
• generating, with the at least one processor, second loudspeaker signals based on the second mix for playback through the loudspeakers in the second loudspeaker layout.