An exploratory experiment was carried out in which subjects with different musical skills were asked to play a digital piano keyboard, first by following a specific key sequence and style of execution, and then performing freely. Judgments of perceived sound quality were recorded in three different settings, including standard use of the digital piano with its own internal loudspeakers, and con...

In traditional models only an order one fraction of energy is transferred from the inflaton to radiation through nonperturbative resonance production in preheating immediately after inflation, due backreaction effects. We propose a particle mechanism that could improve depletion density by up four orders magnitude. The improvement comes fast perturbative decays resonantly produced daughter part...

The problem of skill-level-dependent modulation in the joint dynamics of multi-joint arm movements is addressed in this study using piano keystroke performed by expert and novice piano players. Using the measured kinematic and key-force data, the time varying net, gravitational, motion-dependent interaction (INT), key-reaction (REA), and muscular (MUS) torques at the shoulder, elbow, wrist, and...

Piano players need to learn various techniques such as correct keying and fingering. However, the lighted keyboards, which light up the key and are the most commonly used piano learning supports, have several problems for learners, such as difficulty in understanding the presented fingering information and flow of keying positions, and lack of a fingering check function. To resolve these proble...

Stepped spillways have become a popular method for handling flood releases. The steps increase significantly the rate of energy dissipation taking place on the spillway face and reduce the size of the required downstream energy dissipation basin. The compatibility of stepped spillways with roller compacted concrete (RCC) and gabion construction techniques results in low additional cost for the ...

An excitation/filter system of Inharmonic sound synthesis signal is presented with an application to piano, a stiff string instrument. Specific features of the piano string important in wave propagation, dispersion due to stiffness, frequency dependent losses and presence of phantom partials are included in the proposed model. The modified narrow bandpass filter is used as a basic building bloc...

Virtually all of western classical music could be recorded and stored on a singls computer disk and rendered on a music system costing as much as a good piano. To demonstrate and explore this, I built a system for audio and musical research which permits a workstation to control 64 synthesizers and a computerized Bösendorfer Imperial concert grand piano. It is easy to assemble and play complex ...