1. A method for improving speech recognition by a speech recognition system, comprising: receiving, from each of a plurality of microphones of a device, a microphone output signal, at least one of the microphone signals comprising a voice sample; authenticating, by a voice biometrics engine of the device, a speaker based on the voice sample comprising: providing to the voice biometrics engine, the received microphone output signals, and determining, by the voice biometrics engine, a voice model matching the voice sample, the voice model corresponding to an authenticated speaker, the voice model being one of a plurality of stored voice models; providing, by the voice biometrics engine to the directional sound capturing system, an indication of a microphone associated with the matching voice sample; providing, to a directional sound capturing system of the device, the received microphone output signals; identifying an area from which the microphone output signal comprising the matching voice sample is received; filtering, by the directional sound capturing system, subsequent received subsequent microphone output signals based on the identified area, the subsequent microphone output signals comprising subsequent voice samples; providing at least one filtered subsequent microphone output signals to the speech recognition system for processing; and at predefined intervals, performing the authenticating, by the voice biometrics engine, the authenticated speaker based on at least one filtered subsequent microphone output signal.