Applying Active Noise Control Technique for Augmented Reality Headphones

摘要

With the increased popularity of wearable devices, we are seeing head gears (such as Google glass) that provide augmented visual information. We can also extend augmented information to audible signals to guide users in finding their way, alert user to prominent danger in noisy environment, or simply creating virtual-and-augmented reality gaming platform. In this paper, we outline new approaches in combining real sonic environment and augmented virtual sound source through an open-ear headphones. Microphones are positioned in the headphones to capture the sonic information as well as the signal playback to the headphones. Active noise control (ANC) techniques have conventionally been used for noise cancelling headphones, and this paper shows how we can apply ANC techniques in augmented reality headphones to compensate for the sonic difference between augmented and real sound objects and provide a seamless combination of the two. Some interesting new applications using the augmented reality headphones can be realized with this augmented reality headphones, and open up new possibilities for other interactive applications.