Source Separation

target speech extraction

Lin Wang

Emulating human auditory systems, a two-stage target speech extraction method is proposed which combines fixed beamforming and blind source separation. With the target speaker remaining in the vicinity of a fixed location, several beams from a microphone array point at an area containing the target, then the beamformed output is fed to a blind source separation scheme to get the target signal. The fixed beamforming preprocessing enhances the robustness to time-varying environments and makes the target signal dominant in the beamformed output and hence easier to extract.

(Changed: 19 Jan 2024)  | 
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