| 发明名称 | Microphone array apparatus and storage medium storing sound signal processing program | ||
| 摘要 | A microphone array apparatus includes: an acquisition unit configured to acquire samples from a sound signal inputted from each of a plurality of microphones, at predetermined time intervals; an operation unit configured to calculate a value based on volumes of the sound signal possessed by a plurality of the samples for each of the sound signals inputted from the plurality of microphones; a correlation coefficient calculator configured to calculate a coefficient of correlation between the sound signals, on the basis of the values calculated for the respective sound signals; and a gain calculator configured to calculate reduction gain for the sound signals inputted from the plurality of microphones, on the basis of the coefficient of correlation. | ||
| 申请公布号 | US8958570(B2) | 申请公布日期 | 2015.02.17 |
| 申请号 | US201213425717 | 申请日期 | 2012.03.21 |
| 申请人 | Fujitsu Limited | 发明人 | Matsuo Naoshi |
| 分类号 | H04R3/00;H04R1/40 | 主分类号 | H04R3/00 |
| 代理机构 | Staas & Halsey LLP | 代理人 | Staas & Halsey LLP |
| 主权项 | 1. A microphone array apparatus comprising: a processor to execute acquiring samples from a sound signal inputted from each of a plurality of microphones, at predetermined time intervals,calculating a value based on volumes of the sound signal possessed by a plurality of the samples for each sound signal inputted from the plurality of microphones,calculating a coefficient of correlation between sound signals, based on the values calculated for the sound signals, andcalculating reduction gain for the sound signals inputted from the plurality of microphones, based on the coefficient of correlation; and a memory to store the sound signals and the values. | ||
| 地址 | Kawasaki JP | ||