|Microphone Arrays for Hands-free Speech Interfaces||next|
Human-machine interaction of the future is clearly moving towards speech as a main interface. Many compelling situations exist where hands-free speech interaction with a system is preferred: think about the last time you had to make or take a call while driving on the highway. Many hands-free applications run in environments with high levels of acoustic reverberation and SNR loss. Current speech recognition systems are built primarily for desktop computing and thus lack robustness with respect to hands-free speech. Our work aims to tackle this problem.
The cost of supporting computing technology is already approaching the point where microphone arrays will be practical in many common environments such as conference rooms, lecture theaters, homes, and hospitals. Microphone arrays have the potential to significantly boost the signal quality required for building robust and usable speech-driven interfaces.System Description
We have installed a large-aperture microphone array over an open-floor lab using commodity hardware:
The mic-array system will serve as the interface to the following applications: