Patent ID: 9031256
Filing Date: 2015-05-12
Classification: H04R,H04S

Abstract:
1. A method of orientation-sensitive recording control, said method comprising: within a portable device, and at a first time, indicating that the portable device has a first orientation relative to a gravitational axis; based on said indication that the portable device has the first orientation, selecting a first pair among at least three microphone channels of the portable device; within the portable device, and at a second time that is subsequent to the first time, indicating that the portable device has a second orientation relative to the gravitational axis that is different than the first orientation; based on said indication that the portable device has the second orientation, selecting a second pair among the at least three microphone channels that is different than the first pair; within the portable device, and at a third time subsequent to the first time, indicating that the portable device has a third orientation relative to a second axis that is orthogonal to the gravitational axis; based on said indication that the portable device has the third orientation, selecting a first one of a plurality of spatially selective filtering operations; and performing the selected spatially selective filtering operation on the second pair of microphone channels, wherein each of the at least three microphone channels is based on a signal produced by a corresponding one of at least three microphones of the portable device.