Invention Grant
- Patent Title: Head-tracked spatial audio
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Application No.: US17392069Application Date: 2021-08-02
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Publication No.: US11546687B1Publication Date: 2023-01-03
- Inventor: Symeon Delikaris Manias , Shai Messingher Lang , Juha O. Merimaa
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Womble Bond Dickinson (US) LLP
- Main IPC: H04R1/32
- IPC: H04R1/32

Abstract:
Spatial filters are generated that map response of an audio capture device to head related transfer functions (HRTFs) for different positions of the audio capture device relative to the HRTFs. A current set of spatial filters are determined based on the plurality of spatial filters and a head position of a user. The microphone signals are convolved with the current set of spatial filters, resulting in a left audio channel and right audio channel that form output binaural audio channels. The binaural audio channels can be used to drive speakers of a headphone set to generate sound that is perceived to have a spatial quality. Other aspects are described and claimed.
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