Abstract
The present invention relates to a voice enhancer applicable for hands-free devices. The voice enhancer comprises: a microphone array module for collecting a near-end voice signal and enhancing the directive property and signal-to-noise ratio of the near-end voice signal; an acoustic echo cancellation module for eliminating the echo signal produced by the feedback of at least part of a far-end voice signal; and a noise reduction module for suppressing the noise of the near-end environment. By using the configuration of the proposed invention, the clarity of the voice signal picked up by the hands-free device may be improved and the echo and noise may be eliminated, and therefore, a hands-free device with high communication quality may be achieved.