The capacity of a brass instrument to generate sounds with strong high-frequency components is dependent on the extent to which its bore profile supports nonlinear sound propagation. At high dynamic levels some instruments are readily sounded in a "cuivré" (brassy) manner: this phenomenon is due to the nonlinear propagation of sound in ducts of the proportions typical of labrosones (lip-reed ae...

We propose a system, called BRASS (BRowsing and Administration of Sound Sources), which provides an interactive digital score environment for assisting the users browse and explore the global structure of music in a flexible manner. When making cooperative performances, it is important to learn the global structure to deepen understanding of the piece. The score visualization of our system can ...

Computer optimization of brass wind instruments combines knowledge in several different areas. Usually the performance of those instruments is described by musical terms. Characteristics like intonation, response, pitch variability, sound timbre or efficiency have first to be objectified and mapped to acoustical properties which can be measured and properly predicted by computer simulation.

the lack of complete understanding of the substrate effects on carbon nanotubes (cnts) growth poses a lot oftechnical challenges. here, we report the direct growth of nanostructures such as the cnts on stainless steel 304and brass substrates using thermal chemical vapor deposition (tcvd) process with c2h2 gas as carbon sourceand hydrogen as supporting gas mixed in ar gas flow. we used an especi...

Abstract Laser cutting of copper-based alloy sheets is very difficult due to their high reflectivity, which can be modified with graphitization. The optimal parameters for a 2.5 mm thick brass sheet were determined by examining the laser beam parameter variations and cut kerfs. best characteristics kerfs obtained when surface was graphitized, frequency 200 Hz, applied speed 1400mm/min on 2500 W...