Apparatus with adaptive audio adjustment based on surface proximity, surface type and motion
US9294859B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 31, 2013 |
| Grant date | Mar 22, 2016 |
| Priority date | — |
| Expiry date | Feb 8, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2499/11
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method includes detecting a surface in proximity to a mobile device using sensor data and determining an acoustic reflectivity or acoustic absorptivity of the surface using the sensor data. The method may further compensate for the acoustic reflectivity or acoustic absorptivity by controlling a configurable group of microphones of the mobile device. Compensating for the surface acoustic reflectivity or acoustic absorptivity may include beamforming the outputs of the configurable group of microphones to obtain one of an omnidirectional beamform pattern or a directional beamform pattern. An apparatus that performs the method include a configurable group of microphones, a signal conditioner, and a surface compensator. The surface compensator is operative to detect a surface in proximity to the apparatus and determine a surface acoustic reflectivity or acoustic absorptivity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.