MICROPHONE FOR AUDIO SOURCE TRACKING

摘要

The present invention discloses an arrangement utilizes a certain microphone assembly for facilitating audio source tracking systems in communication systems. It can be applied to both single and array microphones. The principal idea is to enhance the sound level acoustically in the critical high frequency range, thereby increasing the effective signal-to-noise ratio both for sound pickup and localization algorithms. This is done by enclosing the microphone into a channel or a small cavity (a Helmholtz-resonator), thereby introducing a high-frequency response peak (resonance), fairly broad-band.