Target voice detection method and apparatus

A target voice detection apparatus, comprising:

• a signal receiving module, a beamforming module, a detection feature extracting module, a first detecting module, and a detection result outputting module, wherein
• the signal receiving module is configured to receive sound signals collected by a microphone array and output the sound signals to the beamforming module,
• the beamforming module is configured to perform a beamforming process on each frame of the inputted sound signals to obtain beams in different directions for the each frame,
• an input of the detection feature extracting module is connected to an output of the signal receiving module and an output of the beamforming module, and the detection feature extracting module is configured to extract a detection feature of the each frame based on the sound signals and the beams in the different directions, and output the extracted detection feature to the first detecting module,
• the first detecting module is configured to input a detection feature of a current frame extracted by the detection feature extracting module into a pre-constructed target voice detection model to obtain a model output result, and send the model output result to the detection result outputting module, and
• the detection result outputting module is configured to obtain a target voice detection result of the current frame based on the model output result,
• wherein the apparatus further comprises a second detecting module, having an input connected to an output of the beamforming module, configured to perform target voice detection based on an intensity difference to obtain an intensity difference-based detection result and send the intensity difference-based detection result to the detection result outputting module, and
• wherein the detection result outputting module is further configured to fuse the intensity difference-based detection result and the model output result to obtain the target voice detection result of the current frame.