Flexible voice capture front-end for headsets

A signal processing device for configurable voice activity detection, the device comprising:

• a plurality of inputs for receiving respective microphone signals;
• a microphone signal router for routing microphone signals from the inputs;
• at least one voice activity detection module configured to receive a pair of microphone signals from the microphone signal router, and configured to produce a respective output indicating whether speech or noise has been detected by the voice activity detection module in the respective pair of microphone signals;
• a voice activity decision module for receiving the output of the at least one voice activity detection module and for determining from the output of the at least one voice activity detection module whether voice activity exists in the microphone signals, and for producing an output indicating whether voice activity exists in the microphone signals;
• a spatial noise reduction module for receiving microphone signals from the microphone signal router, and for performing adaptive beamforming based in part upon the output of the voice activity decision module, and for outputting a spatial noise reduced output.