Audio-Haptic Rendering of Water Being Poured from Sake Bottle

The impression of food can be affected by “rendition”—i.e., the surrounding environment such as the appearance of the food and the dish—not just by its taste. We focused on the sound and vibration of liquid being poured from a Japanese Sake bottle as a haptic rendition of liquid. Sake bottles are known for their unique “glug” sound and vibration which we believe affects the subjective impression of the liquid in the bottle. To examine this idea, we propose a method that reproduces the vibration of pouring liquid from a Japanese Sake bottle by measuring and modeling real vibrations. We measured the vibration of water by tilting a Sake bottle at different angles, and created a model consisting of two decaying sinusoidal waves of different frequencies. To verify the appropriateness of the model, we manufactured two types of devices and presented the modeled vibration characteristics.