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Interactive Music for Instrumented Dancing Shoes

By: enjoyrui

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We have designed and built a pair of sneakers that each sense 16 different tactile and free-gesture parameters. These include continuous pressure at 3 points in the forward sole, dynamic pressure at the heel, bidirectional bend of the sole, height above instrumented portions of the floor, 3-axis orientation about the Earth's magnetic field, 2-axis gravitational tilt and low-G acceleration, 3-axis shock, angular rate about the vertical, and translational position via a sonar transponder. (http://www.christian-louboutin-sells.com/tall-boots-c-22.html)

Both shoes transfer these parameters to a base station across an RF link at 50 Hz State updates. As they are powered by a local battery, there are no tethers or wires running off the shoe. A PC monitors the data streaming off both shoes and translates it into real-time interactive music. The shoe design is introduced, and the interactive music mappings that we have developed for dance performances are discussed.

1)#Introduction parameters at each foot and wirelessly transmitting real-time updates directly from each shoe. A trained dancer is capable of expressing highly dexterous control of his or her body during a performance. Rather than have the dancer follow music that has been prerecorded or performed, the field of interactive dance explores having the dancer generate or modify their own accompaniment, blurring the distinction between musician and dancer. This is an active field, with various types of sensing techniques being used to detect the dancer's movements.

Perhaps the earliest such attempt was Thermin's Terpsitone [1], an application of capacitive sensing dating back to circa 1930. Most modern approaches use video tracking (e.g., [2]), which begins to be able to work reliably enough for live performances. Although modern vision systems can begin to distinguish and follow individual parts of the body [3], a dancer is able to exert an enormous amount of control at the feet, which video systems either are often unable to see or lack enough bandwidth to adequately track. Some efforts have employ sensing floors (e.g., [4]) to capture a dancer's foot pressure and position, but these only work when the foot is down and when the dancer is on the sensing surface. To obtain more detail, it becomes imperative to instrument the foot itself.

Figure 1: Layout of shoe and sensor systemThe music field already has a history of electronic tap shoes (e.g), although usually equipping them with simple piezo pickups at the toe and heel; capturing other degrees of freedom has been

2) Sensor Hardwarelargely ignored. Outside of dance and music, various techniques have been used to acquire foot data, including fine-grained Our shoe design has evolved over the past couple of years, from a pressure measurements for shoe designers [6], mobile systems that conceptual study [11], to a prototype built into a Capezio warn patients with neuropathies at the sole [7], simple pressure- Dansneaker [12], then to the current device based around a Nike sensing shoes for golfers [8], pressure-measuring overshoes for jogging sneaker [13]. (http://www.mbt-sells.com/mbt-safiri-c-20.html)
Fig. 1 shows a schematic of our present virtual reality immersion [9], and foot-mounted inertial sensors for instrumented shoe, Fig. 2 shows a block diagram of the installed jogging pedometers [10]. The system that we've built blends many system, and Fig. 3 shows a photograph of the final device, with aspects of these approaches, measuring 16 tactile and free-gesture

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Different frequencies are used for each Louboutin Shoes, which communicates to a corresponding basestation, transferring 8-bit updates of all sensor values 50 times per second. A 9-Volt alkaline battery is also mounted on each MBT Shoes Sale, providing enough power for circa 5 hours of use at the 50 mA draw.

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