Patent ID: 11868520
Assignee: NOKIA TECHNOLOGIES OY
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 11:
12. An apparatus as claimed in claim 1, further caused to use:
use a combination of the user perception direction at a first relative time and a front field of hearing to define sound content for rendering at the first time;
render in a first state at the first relative time any portion of the sound content for rendering that is not defined as restricted sound content for the first relative time and render in a second state at the first time, different to the first state, any portion of the sound content for rendering that is defined as restricted sound content for the first relative time; and
use a combination of the user perception direction and a front field of hearing to define observed sound content at the first relative time, wherein the definition of observed sound content at the first relative time is used to enable re-definition of the restricted sound content at the first relative time for subsequent use, wherein the sound content is variable and varies in time.