| 发明名称 | Method and device for microphone selection | ||
| 摘要 | The present invention relates to a device, such as an audio communication device, for combining a plurality of microphone signals xn(k) into a single output signal y(k). The device comprises processing means configured to calculate control signals fn(k), and control means configured to select which microphone signal xn(k) or which combination of microphone signals xn(k) to use as output signal y(k) based on said control signals fn(k). To improve the selection, the device comprises linear prediction filters for calculating linear prediction residual signals en(k) from the plurality of microphone signals xn(k), and the processing means is configured to calculate the control signals fn(k) based on said linear prediction residual signals en(k). | ||
| 申请公布号 | US9313573(B2) | 申请公布日期 | 2016.04.12 |
| 申请号 | US201113980517 | 申请日期 | 2011.11.16 |
| 申请人 | Limes Audio AB | 发明人 | Schüldt Christian;Lindström Fredric |
| 分类号 | H04R3/00;G10L21/02;G10L21/0264;G10L25/12;G10L21/0216 | 主分类号 | H04R3/00 |
| 代理机构 | Schwegman, Lundberg & Woessner, P.A. | 代理人 | Schwegman, Lundberg & Woessner, P.A. |
| 主权项 | 1. A device for combining a plurality of microphone signals xn(k) into a single output signal y(k), comprising: processing means configured to calculate control signals fn(k); control means configured to select which microphone signal xn(k) or which combination of microphone signals xn(k) to use as output signal y(k) based on said control signals fn(k), characterised in that said device comprises linear prediction filters for calculating linear prediction residual signals en(k) from said plurality of microphone signals xn(k), and in that said processing means is configured to calculate said control signals fn(k) based on said linear prediction residual signals en(k). | ||
| 地址 | SE | ||