CPC H04S 7/30 (2013.01) [H04R 3/005 (2013.01); H04R 5/027 (2013.01); H04S 3/008 (2013.01); H04S 3/02 (2013.01); H04S 2400/01 (2013.01); H04S 2400/11 (2013.01); H04S 2400/15 (2013.01); H04S 2420/11 (2013.01)] | 19 Claims |
1. A method for updating a frame of reference for a spatial audio signal, the method comprising:
receiving a first spatial audio signal from an audio capture source, the audio capture source having a first frame of reference relative to an environment, and the first spatial audio signal including multiple signal components representing audio information from different depths or directions relative to a location of the audio capture source in the environment;
receiving information about a second frame of reference relative to the same environment, the second frame of reference corresponding to an image capture sensor;
determining a difference between the first and second frames of reference;
decomposing the first spatial audio signal into respective audio signal components, each audio signal component having a corresponding position in the environment;
selecting, based on the determined difference between the first and second frames of reference, respective filters for processing the audio signal components of the first spatial audio signal;
applying the selected filters to the respective audio signal components of the first spatial audio signal to generate respective spatially transformed components; and
using the spatially transformed components, generating a second spatial audio signal referenced to the second frame of reference.
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