| 摘要 |
The method comprises (step 510) determining directions of arrival of sound waves using signals recorded by a microphone array (10, figure 1), each direction being expressed by azimuth and elevation angles (θ, φ) in a spherical coordinates system which reference plane is parallel to the reflective plane (24); (step 520) sorting the determined directions into groups where each group contains directions sharing substantially same azimuth angles; filtering (step 530) the determined directions based on a least one attribute associated with the directions of each group; and (step 540) localizing audio sources based on the filtered directions. In an embodiment one attribute is the number of directions sorted in each group (cardinal of the group). In this embodiment, the filtering (referred to as first filtering) comprises discarding directions belonging to groups having a single member. |
