Abstract
Since a visual navigation system using smart-phones show information on small screens, users distracted attention is likely to be distracted. So, we are considering a portable navigation system by using Audio Augmented Realty. However, if such equipment is used outdoors, very loud wind noise is recorded with environmental sound. Therefore, to reduce wind noise, we use wind screen and applied signal processing for wind noise reduction. In this paper, we investigated improvements of the subjectivity speech intelligibility. It was shown that iterative Wiener filter improves a speech intelligibility score dramatically.
