发明名称 |
Foreground Signal Suppression Apparatuses, Methods, and Systems |
摘要 |
A processor-implemented method for foreground signal suppression. The method includes: capturing a plurality of input signals using a plurality of sensors within a sound field; subjecting each input signal to a short-time Fourier transform to transform each signal into a plurality of non-overlapping subband regions; estimating the diffuseness of the sound field based on the plurality of input signals; decomposing each of the plurality of input signals into a diffuse component and a directional component based on the diffuseness estimate; applying a spatial analysis operation to filter the directional component of each of the plurality of input signals, wherein the spatial analysis operation includes applying a set of beamformers to the directional components to produce a plurality of beamformer signals; and processing the plurality of beamformer signals to decompose the signal into a foreground channel and a background channel. |
申请公布号 |
US2016210957(A1) |
申请公布日期 |
2016.07.21 |
申请号 |
US201615001221 |
申请日期 |
2016.01.19 |
申请人 |
Foundation for Research and Technology - Hellas (FORTH) |
发明人 |
STEFANAKIS NIKOLAOS;MOUCHTARIS ATHANASIOS |
分类号 |
G10K11/175 |
主分类号 |
G10K11/175 |
代理机构 |
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代理人 |
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主权项 |
1. A processor-implemented method for foreground signal suppression, the method comprising:
capturing a plurality of input signals using a plurality of sensors within a sound field; subjecting each input signal to a short-time Fourier transform to transform each signal into a plurality of non-overlapping subband regions; estimating the diffuseness of the sound field based on the plurality of input signals; decomposing each of the plurality of input signals into a diffuse component and a directional component based on the diffuseness estimate; applying a spatial analysis operation to filter the directional component of each of the plurality of input signals, wherein the spatial analysis operation includes applying a set of beamformers to the directional components to produce a plurality of beamformer signals; and processing the plurality of beamformer signals to produce a foreground channel for each of the plurality of sensors. |
地址 |
Heraklion GR |