This paper presents an automatic description system of drum sounds for real-world musical audio signals. Our system can represent onset times and names of drums by means of drum descriptors defined in the context of MPEG-7. For their automatic description, drum sounds must be identified in such polyphonic signals. The problem is that acoustic features of drum sounds vary with each musical piece...

Conversion of water into steam is the primary function of a utility boiler. The steam pressure is used to turn a steam turbine thus, generating electricity. Within the boiler drum there exists a steam/water interface. Boiler steam drum water level is one of the important parameters of power plant that must be measured and controlled. For safe and efficient boiler operation, a constant level of ...

This paper describes a template-matching-based system, called AdaMast, that detects onset times of the bass drum, snare drum, and hi-hat cymbals in polyphonic audio signals of popular songs. AdaMast uses the power spectrograms of the drum sounds as templates. However, there are two main problems in transcribing drum sounds in the presence of other sounds. The first problem is that actual drum-s...

Thedistribution of aggregates in the cross-section drum, case equipment used for production asphalt mixtures, essentially influences performance rotary dryers. In research carried out this article, optimization distribution particles active region drum was pursued by modifying geometric shape flights, taking into account at same time influence technological parameters operation such as rotation...

This paper presents a highly functional audio player, called Drumix, that allows a listener to control the volume, timbre, and rhythmic patterns (drum patterns) of bass and snare drums within existing audio recordings in real time. A demand for active music listening has recently emerged. If the drum parts of popular songs could be manipulated, listeners could have new musical experiences by fr...

The boiler drum process is a nonlinear, complex and multivariable process which includes significant time delay. Therefore, the control on the water level in the drum is not easy and ideal. The first objective of this paper is to model the drum water level referring to 210 MW power unit for Nassiriyah thermal power plant. The second objective is to study the water level controller operation wit...

Conventional flighted rotary drums usually have flights parallel to the rotating axis, which cannot facilitate axial motion of materials in drum. Here, a new type horizontal drum with inclined and beads was designed. Inclined are used movement material, while as fillers increase gas-liquid contact area crush solid materials. We simulated studied using discrete element method (DEM). To improve m...

An experimental study comparing different user interfaces for a virtual drum is reported. Virtual here means that the drum is not a physical object. 16 subjects played the drum on five different interfaces and two metronome patterns trying to match their hits to the metronome clicks. Temporal accuracy of the playing was evaluated. The subjects also rated the interfaces subjectively. The results...

China is a large flax-growing country, with planting area and production ranking among the top three in world. However, cultivation range of flax very broad, complex, diverse, resulting different scales patterns, making it difficult to apply foreign combine harvesters, lacks dedicated harvester. This research improved design 4LZ-4.0 crawler-type harvester for regional features cropping patterns...