Patent ID: 11924627
Assignee: NOKIA TECHNOLOGIES OY
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 0:
1. An apparatus comprising
at least one processor and
at least one non-transitory memory including a computer program code,
the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to:
obtain at least two audio signals captured with a microphone array;
analyze the at least two audio signals to determine at least one energy parameter;
obtain at least one close audio signal associated with an audio source;
remove directional audio components associated with the at least one close audio signal from the at least one energy parameter to generate at least one parameter; and
define at least one ambience component representation, the ambience component representation comprising at least one respective diffuse background audio signal and the at least one parameter, the at least one parameter being associated with
the at least one respective diffuse background audio signal,
at least one frequency range or at least one part of the at least one frequency range,
at least one time period or at least one part of the at least one time period, and
a directional range for a defined position within an audio field,

wherein the at least one ambience component representation is configured to be used in rendering an ambiance audio signal, based on
the at least one parameter of the at least one ambience component representation,
the at least one respective diffuse background audio signal, and
at least one of: a rendering position, or a rendering direction relative to the defined position.