In a real-world situation, pen strokes produce specific sounds that help to make interactions more natural in a virtual environment, such as using tactile input devices for education or games. In this paper, we describe a method for modeling and generating pen stroke sounds in real time. Since the proposed method is based on recorded signals, not only a specific pen sound but also various sound sources can be used. The difference in sound due to the change of speed of a pen movement is modeled by real-time resampling which is a simple and practical method. Acoustical resonant characteristics of the body below the surface and the pen are also identified. We conducted an experiment by implementing the proposed method on a tactile device and verified the performance.
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